Zootaxa 4369 (1): 046–062 http://www.mapress.com/j/zt/ ISSN 1175-5326 (print edition) Article Copyright © 2018 Magnolia Press ZOOTAXA ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4369.1.2 http://zoobank.org/urn:lsid:zoobank.org:pub:08BC1460-81F4-42D1-8F89-B9D7FD09A521 New records of the family Crangonidae (Decapoda: Caridea) from Southwestern Atlantic FLAVIO DE ALMEIDA ALVES-JÚNIOR¹, GIRLENE FÁBIA SEGUNDO VIANA², MARINA DE SÁ LEITÃO CÂMARA DE ARAÚJO³ & JESSER F. SOUZA-FILHO¹ ¹Laboratório de Carcinologia, Museu de Oceanografia da Universidade Federal de Pernambuco (UFPE). Av. Arquitetura, s/n, Cidade Universitária, Recife—PE. ²Universidade Federal Rural de Pernambuco, Unidade Acadêmica de Serra Talhada, Laboratório de Bentos (LABENTOS/UAST/ UFRPE), Fazenda Saco s/ nº. Serra Talhada, Pernambuco, Brazil. CEP-56900000. ³Coleção Didática de Zoologia da UPE, Faculdade de Ciências, Educação e Tecnologia de Garanhuns, Universidade de Pernambuco (UPE). Rua Capitão Pedro Rodrigues, 105, São José, Garanhuns—PE. E-mail corresponding author: bioflavio@hotmail.com Abstract The family Crangonidae comprises 22 genera and 219 species. Six species are recorded in the Southwestern Atlantic. In this paper, two species of this family, Pontophilus brevirostris Smith, 1881 and Sabinea hystrix (A. Milne-Edwards, 1881) are recorded for the first time to southwestern Atlantic Ocean. Additionally, we record the occurrence of Parapontocaris caribbaea (Boone, 1927), Parapontophilus gracilis (Smith, 1882) and Philocheras gorei (Dardeau, 1980) to the Northeast of Brazil. Through this paper, we raised the number of Cragonidae species to eight from recorded from southwestern Atlantic (Brazilian deep waters). Key words: Continental slope, first report, deep-sea shrimps, Northeastern Brazil Introduction The family Crangonidae Haworth, 1825 comprises 219 species distributed in 24 genera (including an extinct genus), most of which distributed in the north temperate and arctic regions (Christoffersen 1988; Garassino & Jakobsen 2005; De Grave et al. 2009; De Grave & Fransen 2011). The most diverse genus in Crangonidae is Philocheras Stebbing, 1900, with 56 valid species. The members of this family are predators and scavenger benthic species, distributed from shallow waters to 5800 m depths (Chace 1984). Despite the diversity of family Crangonidae, there is currently a reduced number of species recorded in Southwestern Atlantic, especially, along the Brazilian coast, due to the low capture effort in deep waters. Initially, Christoffersen (1988) described a new species, Aegaeon boschii (Christoffersen, 1988) (at the time as Pontocaris boschii) occurring from Brazil (Rio de Janeiro) to Argentina (off Buenos Aires), in depths of 23–169 m and recorded Philocheras gorei (Dardeau, 1980) occurring from state of Rio de Janeiro in Brazil to Uruguay, in depths of 59–194 m. Later on, Cardoso (2009) recorded Parapontophilus longirostris Komai, 2008 from the Brazilian continental slope off Rio de Janeiro, between 1150–1652 m depth. Cardoso (2013) added two new records from Southwestern Atlantic: Parapontocaris caribbaea (Boone, 1927) occurring from Bahia, to Rio de Janeiro, between 251–529 m depth, and Parapontophilus gracilis (Smith, 1882), from Campos Basin, Rio de Janeiro, at the depth of 529 m. Additionally, Cardoso (2013) also found A. boschii and P. longirostris from Campos Basin, Rio de Janeiro, both at 1889 m depth. Recently, Anker et al. (2014) described a new species of deep sea of the genus Prionocrangon Wood-Mason & Alcock, 1891, P. brasiliensis Anker, Pachelle & Tavares, 2014 with Espírito Santo State as type locality, occurring between 707–733 m depth. Taking this in account, there are six species recorded with certainty from Southwestern Atlantic. In this paper, two species of the family Crangonidae, Pontophilus brevirostris Smith, 1881 and Sabinea 46 Accepted by J. Goy: 27 Oct. 2017; published: 3 Jan. 2018 hystrix (A. Milne-Edwards, 1881) are recorded for the first time to Southwestern Atlantic (Brazilian waters). Additionally, we record on the occurrence of Parapontocaris caribbaea (Boone, 1927), Parapontophilus gracilis (Smith, 1882) and Philocheras gorei (Dardeau, 1980) to the Northeastern Brazil. Material and methods The analyzed samples were collected in two moments: first during Expedition PAVASAS I on board of N. Oc. Almirante Saldanha, dredge #05, 02°15’30” S–40°29’18” W (State of Maranhão—Brazil) in 20 July 1987 with bottom trawls on the continental shelf. In the second moment, the material was collected as part of the monitoring program "Avaliação da Biota Bentônica e Planctônica da Bacia Potiguar e Ceará (Bpot)", aboard of R/V Seward Johnson in May 2011, off the coast of the States of Ceará (CE) and Rio Grande do Norte (RN), with samples between the coordinates (03/05° S; 38/35° W), sponsored by "Petróleo Brasileiro S/A (Petrobras)", in trawls used in Bpot were made using a shrimp fishery net with 150 mm of mesh, between 150–2068 m depth, with stations (#ARMT and #MT) (Alves-Júnior et al. 2016a,b). All the material was deposited in the Carcinological Collection of the "Museu de Oceanografia Prof. Petrônio Alves Coelho (MOUFPE)" at Federal University of Pernambuco. The examined material is presented as follows: number of specimens, sex [females (F), males (M) and ovigerous females (OF)], total length (TL), locality, station, depth, coordinates of samples, date and catalog number (MOUFPE). In the sections geographic and bathymetric distributions, the new records are in bold. Results Systematics Family Crangonidae Haworth, 1825 Genus Parapontocaris Alcock, 1901 Parapontocaris caribbaea (Boone, 1927) (Fig. 1 A–B) Aegeon Caribbaeus Boone, 1927: 125, fig. 28. Parapontocaris caribbaea—Bullis & Thompson 1965: 8.—Dardeau & Heard 1983: 10.—Chace 1984: 30 (Key).—Chan 1996: 319.—Cruz et al. 2002: 189.—Campos et al. 2005: 86, figs. 49, 50.—Felder et al. 2009: 1060.—Cardoso 2013: 88, fig.2.—Vázquez-Bader & Gracia 2013: 369. Material examined. 1 Ovigerous female (TL: 98 mm) , Potiguar Basin, #ARMT–65, 480 m, 04º 33' 21'' S, 036º 53' 45'' W, 08 December 2009, MOUFPE: 15.178. Diagnosis. See Cardoso (2013). Geographic distribution. Western Atlantic: Bahamas, Straits of Florida, Gulf of Mexico, Caribbean Sea, Honduras, Colombia, Surinam, French Guiana and Brazil: (Rio Grande do Norte, Bahia, Espírito Santo, Rio de Janeiro) (Fig. 2) (Chace 1984, 1956; Dardeau & Heard 1983; Cruz et al. 2002; Campos et al. 2005; Felder et al. 2009; Cardoso 2013; Vázquez-Bader & Gracia 2013). Bathymetric distribution. Occurring from 251 to 885 m depth, at Potiguar Basin at 480 m (Boone 1927; Bullis & Thompson 1965; Chace 1984; 1956; Dardeau & Heard 1983; Cruz et al. 2002; Campos et al. 2005; Felder et al. 2009; Cardoso 2013; Vázquez-Bader & Gracia 2013). Remarks. The material analyzed here fits well with all diagnostic characters described by Boone (1927), Dardeau & Heard 1983, Chan (1996), Campos et al. (2005) and Cardoso (2013), which presents rostrum short and broad not exceeding the eyes (Fig. 1 B); dorsal surface of carapace with carina showing four teeth (Fig. 1 B); second abdominal somite with two pair of lateral ridges and a dorsal spine, followed by a dorsal carina (Fig. 1 B); abdominal somites 3–4 with a dorsal carina unarmed (Fig. 1 B); abdominal somite 5 with one pair of ridges that CRANGONIDAE FROM SOUTHWESTERN ATLANTIC Zootaxa 4369 (1) © 2018 Magnolia Press · 47 converge anteriorly (Fig. 1 B); abdominal somite 6 with one pair of ridges forming dorsally an elongate-oval image (Fig. 1 B) and telson with one pair of ridges forming a central sulcus (Fig. 1 B). According to Cardoso (2013) and Vázquez-Bader & Gracia (2013) this species inhabits muddy substrate along the continental slope, but as observed by Vázquez-Bader & Gracia (2013), the occurrence of P. caribbaea in depth samples is rare as compared to other species, as was observed in Potiguar Basin through only one specimen. FIGURE 1. Parapontocaris caribbaea (Boone, 1927), Ovigerous female (TL: 98 mm), Potiguar Basin, #ARMT–65. A. Habitus: lateral view. B. Habitus: dorsal view. (MOUFPE: 15.178). Scale bar = 5 mm. 48 · Zootaxa 4369 (1) © 2018 Magnolia Press ALVES-JÚNIOR ET AL. FIGURE 2. Geographic distribution of Parapontocaris caribbaea (Boone, 1927), in the Atlantic Ocean. Parapontophilus Christoffersen, 1988 Parapontophilus gracilis (Smith, 1882) (Fig. 3A–B) Pontophilus gracilis Smith, 1882: 36, pl. 7, figs. 2, 2a–c, 3,3a.—Barnard 1950: 806, fig. 153a–h.—Crosnier & Forest 1968: 1145; 1973: 242, fig. 79e, f.—Pequegnat 1970: 113. Parapontophilus gracilis—Smith 1987: 654, pl. 11, fig. 1, 1a, 2.—d’Udekem d’Acoz 1999: 133.—Campos et al. 2005: 89, figs. 53, 54.—Komai, 2008: 271, figs. 2, 20a.—Cardoso, 2013: 88, fig. 3.—Anker et al. 2014: 269. Material examined. 1 male (TL: 52 mm), Potiguar Basin, #MT–64, 418 m, 04° 33' 39'' S, 036° 52' 99'' W, 05 May 2011, MOUFPE: 15.637. 1 male (TL: 45 mm) and 1 female (TL: 57 mm) , Potiguar Basin, #ARMT–75, 996 m, 04º 27' 56'' S, 036º 53' 72'' W, 08 December 2009, MOUFPE: 15.246. 2 individuals, 1 male (TL: 51 mm) and 1 female (TL: 47 mm), Potiguar Basin, #MT–75, 915 m, 04° 28' 80'' S, 036° 52' 55'' W, 05 May 2011, MOUFPE: 15.636. 1 female (TL: 59 mm), Potiguar Basin, #MT–85, 2.025 m, 04° 21' 35'' S, 036° 44' 27'' W, 05 May 2011, MOUFPE: 15.638. Diagnosis. See Cardoso (2013). Geographic distribution. Western Atlantic: East Coast United States of America (between 39° 57' N and 32° 18' N, New Jersey), Gulf of Mexico, Antilles, Colombia and Brazil: (Rio Grande do Norte and Rio de Janeiro). East Atlantic: Congo, Cabinda, Angola. Indo-West Pacific: East Coast Africa, Zanzibar, Gulf of Aden, Maldives, Andaman Sea, Sahara, Talisman. Northeastern Atlantic: Morocco, Senegal (Fig. 4) (Kensley 1968; Crosnier & Forest 1973; Smith 1882 1887; Cruz et al. 2002; Cardoso 2013). Bathymetric distribution. This species inhabits depths between 294–3440 m (Calman 1939; Barnard 1950; Cruz et al. 2002; Felder et al. 2009). In Southwestern Atlantic (Brazilian waters) between 529–1435 m depth (Komai 2008; Cardoso 2013). In Potiguar Basin between 996–2025 m. CRANGONIDAE FROM SOUTHWESTERN ATLANTIC Zootaxa 4369 (1) © 2018 Magnolia Press · 49 Remarks. The specimens herein examined fits well with the description given by Cruz (2002) and Komai (2008), which the anterior epigastric tooth reduced or absent, posterior epigastric and cardiac teeth medium sized (Fig. 3 B). Cardoso (2013) observed an individual of P. gracilis collected in the Brazilian waters (Campos Basin), between states of Espírito Santo and Rio de Janeiro, with epigastric tooth reduced as observed in the material redescribed by Komai (2008), from Gulf of Mexico (mouth of Mississippi and Dry Tortugas), Caribbean Sea (Antilles) and Africa (Iberia-Morocco, Sahara, Talisman, Senegal, Congo, Cabinda and Angola). The individuals of P. gracilis from Potiguar Basin present the epigastric tooth rudimentary and the cardiac tooth moderately small in superior region of the carapace (Fig. 3 B) (see others morphological comparisons in Table 1). Thus, this species have the second report for Southwestern Atlantic (Brazilian waters) in this paper. FIGURE 3. Parapontophilus gracilis (Smith, 1882), female (TL: 57 mm), Potiguar Basin, #ARMT–75. A. Habitus: lateral view. B. Rostrum view. C. Carapace view. (MOUFPE: 15.246). Scale bar = 1 mm. 50 · Zootaxa 4369 (1) © 2018 Magnolia Press ALVES-JÚNIOR ET AL. FIGURE 4. Geographic distribution of Parapontophilus gracilis (Smith, 1882), in the Atlantic Ocean. TABLE 1. Morphological variation in individuals of Parapontophilus gracilis (Smith, 1882) observed in Atlantic Ocean. Komai 2008 Rostrum not reaching the distal margin of cornea Cornea 0.25–0.30 of Palm of first Pereopod carapace length 3.90–4.20 times longer than broad Dactylus of fourth Pereopod 0.70–0.80 of Propodal Length Fifth Pereopod 0.70–0.80 Cardoso 2013 Rostrum surpassing the distal margin of cornea Cornea 0.27 of carapace length Dactylus of fourth Pereopod 0.80 of Propodal Length Fifth Pereopod 0.70 Present Study Rostrum surpassing the distal margin of cornea Cornea 0.26–0.28 of Palm of first Pereopod carapace length 4.0–4.10 times longer than broad Dactylus of fourth Pereopod 0.70–0.78 of Propodal Length Fifth Pereopod 0.70–0.78 Palm of first Pereopod 4.0 times longer than broad Philocheras Stebbing, 1900 Philocheras gorei (Dardeau, 1980) (Fig. 5A–E) Pontophilus gorei Dardeau, 1980: 563, fig. 1–4.—Dardeau & Heard 1983:19, fig. 2d, g;—Williams 1984: 161, fig. 114. Philocheras gorei—Chace, 1984: 39.—Christoffersen 1988: 53.—Nizinski 2003:112. Material examined. 1 female (TL: 21 mm), Expedition PAVASAS I (State of Maranhão—Brazil), #dredge 05, 45 m, 02°15’30” S, 40°29’18'' W, 20 July 1987, MOUFPE: 9.569. CRANGONIDAE FROM SOUTHWESTERN ATLANTIC Zootaxa 4369 (1) © 2018 Magnolia Press · 51 Diagnosis. See Dardeu (1980) and Williams (1984). Geographical distribution. Western Atlantic: Central Georgia; United States (Central Eastern Florida), Gulf of Mexico (Southwestern Florida, Cape San Bias and Padre Island, Texas) and Brazil: (Maranhão and Rio de Janeiro), Uruguay (Fig. 6) (Dardeau & Heard 1983; Williams 1984; Christoffersen 1988; Nizinski 2003). Bathymetric distribution. Occurring between 9–194 m (Dardeau & Heard 1983; Williams 1984; Christoffersen 1988; Komai 2008; Felder et al. 2009). Remarks. The specimen herein examined fits well with the description given by Dardeau (1980), Dardeau & Heard (1983), Williams (1984) and Christoffersen (1988), which presents rostrum short, extending slightly beyond cornea (Fig. 1 A, B); carapace lacking dorsolateral suture (Fig. 1 A, B); carapace with strong dorsomedial spine behind rostrum (Fig. 1 A, B); merus of first pereopod with strong spine midway on flexor margin (Fig. 1 C) and telson with two pair of dorsolareral spines (Fig. 1 E). The species of P. gorei inhabits channels within gravel and muddy substrates along the continental shelf. The first report from Brazilian waters from state of Rio de Janeiro was made by Christoffersen (1988), thus this is the second report of P. gorei from Brazilian waters. FIGURE 5. Philocheras gorei (Dardeau, 1980), female (TL: 21 mm), PAVASSAS I, #dredge 05. A. Habitus: dorsal view. B. Habitus: lateral view. C. Pereopod 1. D. Pereopod 2. E. Telson and uropods. (MOUFPE: 9.569). Scales bar = A, B, C, E = 0.5 mm, D = 0.1 mm. 52 · Zootaxa 4369 (1) © 2018 Magnolia Press ALVES-JÚNIOR ET AL. FIGURE 6. Geographic distribution of Philocheras gorei (Dardeau, 1980), in the Atlantic Ocean. Pontophilus Leach, 1817 Pontophilus brevirostris Smith, 1881 (Figs. 7A–C; 8 A–B) Pontophilus brevirostris Smith, 1881: 435,436.—Smith 1882: 35, 36, pl. 7, figs. 1, la, b.—Smith 1887: 653.—Chace 1956: 14.—Thompson 1963: 262–268, figs. 31b, 32.—Pequegnat 1970: 113.—Pequegnat et al. 1971: 10.—Williams 1974: 14, 40, fig. 37 (Key).—Williams & Wigley 1977: 8.—Young 1978: 175.—Wenner & Boesch 1979: 110.—Dardeau & Heard 1983: 17, fig. 8.—Williams 1984: 161, fig.113. Material examined. 3 Ovigerous females (TL: 56 mm, 57 mm and 55 mm) , Potiguar Basin, #MT–65, 497 m, 04° 33' 39'' S, 036° 52' 99'' W, 13 May 2011, MOUFPE: 15.179. 1 female (TL: 61 mm) , Potiguar Basin, #MT–61, 457 m, 04° 47' 83'' S, 036° 11' 02'' W, 08 May 2011, MOUFPE: 15.245. Diagnosis. Carapace with mid-dorsal carina with 3–4 spines, lateral carina with 3 spines and a short second lateral carina with only one spine; hepatic spine present; rostrum very short with a tooth at each side of base, not reaching the end of cornea. Six pairs of branchiae present, directed posteriorly. First pereopod subchelate, stout, with rudimentary exopod. Second pereopod chelate and short, reaching 1/2 of merus of first pereopod. Abdomen with first four somites rounded, fifth with low diverging carinae and 6th with two parallel carinae. Telson tapering to narrow tip with short central spine and 2 pairs of superimposed lateral spines (modified from Williams 1974). Geographical distribution. Western Atlantic: United States (Cape Hatteras), Gulf of Maine to Eastern Gulf of Mexico, off Dry Tortugas, Florida; Cuba, Bahamas and Brazil: (Rio Grande do Norte) (Fig. 9) (Smith 1887; Pequegnat 1970; Dardeau & Heard 1983; Williams 1984; Felder et al. 2009). Bathymetric distribution. Occurring from 7 to 426 m (Pequegnat 1970; Dardeau & Heard 1983; Smith 1887; Felder et al. 2009), herein it was found between 457–497 m. CRANGONIDAE FROM SOUTHWESTERN ATLANTIC Zootaxa 4369 (1) © 2018 Magnolia Press · 53 Remarks. The specimens examined herein fits well with the original description given by Dardeau & Heard (1983), but showing some differences when compared with specimens analyzed by Smith (1881), Williams (1974; 1984) and Vázquez-Bader & Gracia (2013) (see Table 2). TABLE 2. Variation between numbers of the spines on carapace in Pontophilus brevirostris Smith, 1881 observed in Atlantic Ocean. Characters Smith (1881) Williams (1974; 1984) Dardeau & Heard (1983) Vázquez-Bader Present study & Gracia (2013) Dorsal surface of Carapace 3–4 (number of spines) 3–4 3 2 3 First lateral carina (number of spines) 2 2 and 1 rudimentary 2–3 3–4 3 Distribution USA (Martha's USA (North Vineyard)* Carolina and Florida) USA (Florida Keys) Gulf of Mexico and Gulf of Mexico (Cape San Blas) Brazil (Potiguar Basin) * Type-locality FIGURE 7. Pontophilus brevirostris Smith, 1881, female (TL: 61 mm), Potiguar Basin, #MT–61. A. Habitus: lateral view. B. Pereopod 1. C. Pereopod 2. (MOUFPE: 15.245). Scales bar = A = 5 mm, B, C = 1 mm. 54 · Zootaxa 4369 (1) © 2018 Magnolia Press ALVES-JÚNIOR ET AL. Pontophilus brevirostris closely resembles P. norvegicus (Sars, 1861) and P. spinosus (Leach, 1816), but these species can be distinguished from each other as follow (characteristics of P. norvegicus and P. spinosus respectively in parentheses): rostrum not reaching the end of eyes (Fig. 8 A) (vs. surpassing the eyes, not exceeding eyes); rostrum with three spines, being the central spine slightly larger than the others (Fig. 8 A) (vs. central spine much larger than the others, central spine slightly larger than the others); carapace with 3 dorsal spines (vs. 3–4 dorsal spines with one rudimentary, 4 dorsal spines); lateral carina with three spines (Fig. 8 A) (vs. 2 with 1 rudimentary, 3 spines); hepatic carina with one spine (vs. only one spine, 2 spines). According to Smith (1882), Williams & Wigley (1977) and Dardeau & Heard (1983), the species of Pontophilus brevirostris inhabits continental shelf and continental slope), showing a wide bathymetric distribution of 7 to 497 m, and supporting a great variation of temperature of 4.9 °C to 17.2 °C. Thus, this the first report of P. brevirostris from southwestern Atlantic (Brazilian waters). FIGURE 8. Pontophilus brevirostris Smith, 1881, female (TL: 61 mm), Potiguar Basin, #MT–61. A. Habitus: dorsal view. B. Telson and uropods (MOUFPE: 15.245). Scales bar = A = 5 mm, B, C = 1 mm. CRANGONIDAE FROM SOUTHWESTERN ATLANTIC Zootaxa 4369 (1) © 2018 Magnolia Press · 55 FIGURE 9. Geographic distribution of Pontophilus brevirostris Smith, 1881, in the Atlantic Ocean. Sabinea Ross, 1835 Sabinea hystrix (A. Milne-Edwards, 1881) (Figs. 10 A; 11A–D) Paracrangon hystrix A. Milne Edwards, 1881: 6. Sabinea princeps Smith, 1882: 38, pl. 8, fig.1, 1a, 1b.—Smith 1886: 189.—Smith 1887: 654, pl. 10, fig. 1, 1a, 1b, 2. Sabinea hystrix—Hansen 1908: 51.—Stephensen 1912a: 61.—Stephensen 1912b: 555, 578.—Stephensen 1913: 17.—de Man 1920:256, 302, 303.—Holthuis 1955: 132, fig. 95b.—Sivertsen & Holthuis 1956: 40.—Crosnier & Forest 1973: 232, fig. 73c–d.—Chace, 1984: 58.—Squires 1990: 12. Material examined. 2 individuals, 1 male (TL: 100.1 mm), 1 Ovigerous female (TL: 103.6 mm), Potiguar Basin, #MT–71, 1062 m, 04° 40' 29'' S, 036° 23' 70'' W, 20 May 2011, MOUFPE: 15.172. 2 individuals, 1 male (TL: 89.1 mm) and 1 Ovigerous female (TL: 111.2 mm), Potiguar Basin, #MT–72–2, 1073 m, 04° 34' 14'' S, 036° 41' 60'' W, 07 May 2011, MOUFPE: 15.173. 1 male (TL: 86.5 mm), Potiguar Basin, #MT–73.2, 1006 m, 04° 37' 85'' S, 036° 30' 08'' W, 16 May 2011, MOUFPE: 15.174. 1 juvenile (TL: 53.7 mm), Potiguar Basin, #MT–83, 2006 m, 04° 28' 36'' S, 036° 24' 76'' W, 04 May 2011, MOUFPE: 15.175. 1 female (TL: 89.2 mm), Potiguar Basin, #MT–73, 957 m, 04° 37' 66'' S, 036° 30' 54'' W, 05 May 2011, MOUFPE: 15.176. 1 Ovigerous female (100.5 mm), Potiguar Basin, #MT–72, 908 m, 04° 40' 18'' S, 036° 23' 86'' W, 07 May 2011, MOUFPE: 15.177. Diagnosis. Carapace with seven longitudinal carinae, the mid-dorsal carina with about 8 strong teeth, the lateral carinae with many smaller strong teeth. Rostrum strong ascending sharp spine with one ventral spine on 56 · Zootaxa 4369 (1) © 2018 Magnolia Press ALVES-JÚNIOR ET AL. distal third and two lateral spines on proximal third, with two spines on basis. Abdominal somites dorsally carinate, somites three and four ending in a terminal spine, somites five and six with spiny carinae, the fifth and sixth somites with two diverging parallel carinae with dorsally strong spines (modified from Squires 1996). Geographical distribution. Western Atlantic: Greenland (Davis Strait 64°54' N), Nova Scotia (off LaHave Bank to St. Pierre Bank), Bank of Galicia (NW of Iberian Peninsula 42° 67′ N 11° 74′ W), Western Sahara (23° 55' N; 17° 15' W) to the West Indies, Gulf of Mexico, Caribbean sea, Guadalupe, Rio Oro (23° 55' N) and Brazil: (Ceará and Rio Grande do Norte) (Fig. 12) (Sivertsen & Holthuis 1956; Crosnier & Forest 1973; Squires 1996; Felder et al. 2009; Cartes et al. 2014). Bathymetric distribution. Occurs from 550 to 3957 m depth (Squires 1996; Felder et al. 2009; Cartes et al. 2014). Remarks. The specimen herein examined fits well with the description given by A. Milne-Edwards (1881), Crosnier & Forest (1973), Chace (1984) and Squires (1996), which carapace with seven longitudinal carinae (Fig. 11 A); dorsal surface of carapace with eight strong spines (Fig. 11 A); rostrum with two spines on basis and one ventral (Figs. 10 A; 11 A); abdominal somites dorsally carinate and 3–4 ending in a terminal spine (Figs. 10 A; 11 B); abdominal somites 5–6 with two diverging parallel carinae ending in two terminal spine (Figs. 10 A; 11 B). This species is typically benthic, occurring along the continental slope and especially, in insular slopes (Smith 1882; Crosnier & Forest 1973). One ovigerous female showed morphological anomaly on the carapace, with the brancheostegal spine asymmetric (MOUFPE 15.177, Fig.11A). These anomalies can be caused by damages resulting from combat, deformities in ecdysis related to genetic factors or predation (Shelton et al. 1981; Ivanov & Sokolov 1997). Thus, this paper recorded the genus Sabinea for the first time to South Atlantic Ocean, being an important advancement to the knowledge of the geographic distribution in Atlantic, especially, increasing the geographic distribution of Sabinea hystrix from South Atlantic deep waters. FIGURE 10. Sabinea hystrix (A. Milne-Edwards, 1881), Ovigerous female (TL: 100.5 mm), Potiguar Basin, #MT–72. A. Habitus: lateral view. (MOUFPE: 15.177). Scale bar = 1 mm. CRANGONIDAE FROM SOUTHWESTERN ATLANTIC Zootaxa 4369 (1) © 2018 Magnolia Press · 57 FIGURE 11. Sabinea hystrix (A. Milne-Edwards, 1881), Ovigerous female (TL: 100.5 mm), Potiguar Basin, #MT–72. A. Habitus: dorsal view. B. Fifth, sixth somites, telson and uropods. C. Pereopod 2. D. Pereopod 1. (MOUFPE: 15.177). Scales bar A, B, D = 1 mm, C = 0.5 mm. 58 · Zootaxa 4369 (1) © 2018 Magnolia Press ALVES-JÚNIOR ET AL. FIGURE 12. Geographic distribution of Sabinea hystrix (A. Milne-Edwards, 1881), in the Atlantic Ocean. Acknowledgments The first author would like to thank CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) for the postgraduate scholarship on Oceanography. The authors are also grateful to Petróleo Brasileiro S.A. (Petrobras) for making the material used in this study available. The authors would, specially, like to thank Dr. Joseph Goy for his support and the anonymous reviewers for their precious comments on this paper. References Alcock, A. (1901) A descriptive catalogue of the Indian deep-sea Crustacea Decapoda Macrura and Anomala, in the Indian Museum. Being a revised account of the deep-sea species collected by the Royal Indian marine survey ship Investigator. 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