SCHIZOPORELLOIDEA Jullien, 1883

Superfamily SCHIZOPORELLOIDEA Jullien, 1883 View in CoL

Family LACERNIDAE Jullien, 1888 View in CoL

Genus Phonicosia Jullien, 1888 View in CoL

Phonicosia jousseaumei Jullien, 1888

( Figure 10 View Figure 10 A–C)

Phonicosia jousseaumei Jullien 1888, p 51 , Plate 1, Figure 6 View Figure 6 .

Phonicosia circinata: Hayward 1991, p 330 View in CoL , Figure 12 View Figure 12 .

Material

St. 53 Marion Island (46 ° 55 9 S, 37 ° 33 9 E), 606–775 m, SAM A27573 GoogleMaps .

Description

Colony forming small rounded patches, encrusting on rock. Autozooids oval to hexagonal, convex, separated by distinct sutures; 0.55–0.65X 0.35–0.4 mm. Primary orifice slightly wider than long, 0.1X 0.09 mm, sinus narrowly U-shaped 0.02 mm, parallel-sided, condyles short and broad, occupying entire proximal border of orifice on either side of the sinus. Six to eight oral spines spaced around lateral and distal margins of orifice, three pairs persisting in ovicelled autozooids. Frontal wall thinly calcified, glossy, hyaline, smooth; imperforate except for a single series of large, widely spaced marginal pores, with two to three adjacent to the sinus, on each side. Ovicell 0.3 mm long, slightly longer than wide; basal ring of ectooecium thickly calcified, with basal pores, entooecium smooth.

Remarks

Phonicosia jousseaumei , the type species of the genus, was originally described from the Magellan Strait ( Jullien 1888). Hayward (1991) re-examined Jullien’s holotype specimen, and considered that it represented the same species collected by Discoυery Inυestigations from the southern Patagonian shelf, Gough Island, the South Sandwich Islands, and Marion Island. However, following Powell (1967) and Gordon (1984, 1984), these records were attributed to the Indo-West Pacific species, P. circinata (MacGillivray) View in CoL . Powell (1967) noted two ‘‘forms’’ of P. circinata View in CoL in material from New Zealand, and Gordon (1984) recorded further morphological variation in specimens from the Kermadec Ridge. It is possible that the broad geographical range attributed to P. circinata View in CoL is founded upon several different species; D. P. Gordon (in litt.) considers that, at least, P. jousseaumei is distinct from P. circinata View in CoL and, on the basis of Hayward’s (1991) examination of Jullien’s holotype, the Marion Island species is here referred to the former.

Family MICROPORELLIDAE Hincks, 1879 View in CoL