Lyphira heterograna ( Ortmann, 1892 ) Galil, 2009

Lyphira heterograna ( Ortmann, 1892) View in CoL n. comb. ( Figs 12B View FIG ; 14 View FIG )

Philyra globulosa – H. Milne Edwards 1837 ( Milne Edwards 1836 -1844), pl. 24, fig. 4; 1837: 132.

Philyra heterograna Ortmann, 1892: 582 , pl. 26, fig. 17. — Balss 1922: 128. — T. Sakai 1937: 158, text fig. 33. — Uchida 1949: 717, fig. 2075. — Miyake 1961b: 171. — Miyake et al. 1962: 127. — T. Sakai 1965: 48; 1976: 111, pl. 32, fig. 3, text fig. 63a. — Serène 1968: 46. — Takeda & Miyake 1970: 230. — Kim 1973: 306, pl. 77, fig. 67a, b, text fig. 99. — Takeda 1982: 101, fig. 297. — Dai et al. 1986: 78, fig. 39.2, pl. 9.7. — Chen 1987: fig. 2. — Dai & Yang 1991: 86, fig. 39.2, pl. 9.7. — K. Sakai 1999: 18, fig. 1b, pl. 7C. — Ng et al. 2001: 9, fig. 3a (additional references for Taiwan). — Chen & Sun 2002: 379, text fig. 169, pl. 14.4. — Takeda et al. 2006: 191.

Philyra globosa – Lanchester 1900: 764 (p.p.).

Philyra peitahoensis Shen, 1932: 18 , pl. 1.1-2, text figs 10-12, 16b. — Serène 1968: 46.

Philyra anatum – Rathbun 1910: 312.

Philyra acutidens Chen, 1987: 195 , fig. 1. — Chen & Sun 2002: 381, text fig. 170, pl. 15.1.

TYPE MATERIAL. — Syntypes: Japan. Tokyo Bay, 1880-1881, id. Ortmann, 1 ♂ cl 12.2 mm, 5 ♀♀ cl 10.8-17.0 mm (Musée zoologique, Strasbourg, reg. no. 658). — Same data, 4 ♂♂ cl 18.4-20.0 mm (Musée zoologique, Strasbourg, reg.no. 149) (the ♂ cl 12.2 mm is here designated the lectotype and the remaining specimens are now considered to be paralectotypes).

MATERIAL EXAMINED. — Thailand. Koh Chang, 1900, 6- 10 m, coll. Th. Mortensen, id. M. J. Rathbun as Philyra anatum , 3 juvs ( ZMK CRU 4264).

Malaysia. Malacca, 1-2 m, coll. F. P. Bedford & W. F. Lanchester, 4 ♂♂ cl 12.7-15.1 mm, 2 ovig. ♀♀ cl 11.4, 14.9 mm (NHM 1900.10.22.340-45). — Pontian, 1992, 1 ♂ cl 10.6 mm ( ZRC 1999.0798).

Philippines. Panglao, 15 m, 1955-56, 5 ♂♂ cl 8.9- 12.7 mm, 2 ♀♀ cl 11.4, 11.2, 12.8 mm ( ZRC 1985.90- 96).

East China Sea. 32°00’N, 127°30’E, 25 m, 24.X.1959, coll. Cheng, 1 ♂ cl 14.4 mm ( ZRC 1999.0013). — V.1878, coll. Branchi, 1 ♂ cl 15.2 mm ( MZUF 2723). — Chusan I., 18-25 m, coll. P. Basset-Smith, 2 ♂♂ cl 14.2, 14.3 mm, 2 ♀♀ cl 13.7, 11.7 mm, (NHM 1892.12.15.31-43). — Peitaiho, coll. C. J. Shen, 2 ♂♂ cl 9.3, 9.3 mm (NHM 1930.11.14.5-6).

Japan. Tokyo fish market, 2 ♂♂ cl 14.5, 15.5 mm, 3 ♀♀ cl 13.5-14.9 mm ( NSMT 3564). — Mikawa-Ishiki, Aichi prefecture, 9.XI.1962, 1 ♀ cl 15.3 mm ( NSMT 3613). — XII.1957, 1 ♀ cl 13.3 mm ( NSMT 8463). — 1 ♀ cl 13.0 mm ( NSMT 3627).

DISTRIBUTION. — Japan, Taiwan, China, Malaysia, Indonesia, Philippines, East China Sea.

DESCRIPTION

Dorsal surface of carapace bearing closely-spaced minute granules, hepatic, branchial and intestinal regions bear slightly larger, more prominent granules; hepatic, intestinal regions slightly tumescent. Frontal margin minutely granulate. Circumference of carapace behind front beaded, granules variable in size. Anterior margin of epistome slightly arcuate, inner angles of afferent branchial canals not prominent. External maxillipeds minutely granulate, exognath paddle-shaped. Pterygostomian region prominently granulate.Anterolateral margin slightly sinuous, posterolateral margin arcuate. Th oracic sternites granulate. Anterior margin of abdominal sulcus in male specimens prominently granulate, granules lozenge-shaped. Fused male abdominal segments 2-6 granulate basio-laterally. Margins of fused abdominal segments in female granulate, prominently granulate areas basally. Cheliped merus covered with perliform granules, interspaced with smaller granules. Carpus with row of granules on inner margin; patch of minute granules distally on upper margin. Propodus lenticular, minutely granulate, upper and lower surfaces bearing larger, more prominent granules. Fingers fluted, granulate, granulation most prominent proximally on outer margins; inner margin of dactyl bearing prominent denticle medially. Merus of last pereiopod bearing line of pearliform granules ventrally; meri of pereiopods 1-3 bear line of increasingly minute granules along ventral margin; carpi and propodi smooth. Male first pleopod with digitate apical process.

Colour

“In alcohol, carapace avellaneous to light cinnamon drab, tip of dactylus dark brown.” ( Shen 1932: 21).

REMARKS

Shen’s (1932) description and drawings of Philyra peitahoensis correspond to Lyphira heterograna n.comb. Already Sakai (1937:160) found it “in all probability synonymous” with the latter species. Comparing P. peitahoensis to P. tuberculosa Stimpson, 1858 (in fact to Lyphira perplexa n. sp. see below), Shen (1932: 22) wrote “This new species is apparently different […] by its smaller size, its angle of branchial channel not triangularly pointed […], its different shape of male appendage.” Indeed, L. heterograna n. comb. differs from L. perplexa n. sp. in its smaller body size, its short inner angles of afferent branchial canals, first pereiopodal meri lacking line of pearliform granules ventrally, and digitate apical process of first male pleopod. Chen’s (1987: fig. 1) P.acutidens is an immature specimens of L.heterograna n. comb., as the drawing of the first male pleopod demonstrates.