Terebratulina callinome Dall - Jackson & Stiansy 1920

Terebratulina callinome Dall, 1920 (Fig. 3A–E) 1920 Terebratulina callinome Dall, pp. 303–304. 1937 Terebratulina callinome Dall—Jackson & Stiansy, p. 13, pl. 1, figs. 10–11. 1973b Terebratulina callinome Dall—Cooper, pp. 375–376, pl. 44, figs. 18–28. 2010 Terebratulina callinome Dall—Zezina, p. 1186. Material examined. NW Australia, Kimberley, Broome, stn SO1/84/120, 17°59’S, 118°11’E to 18°01’S, 118°08’E, 560 m, 24 February 1984, coll. S.M. Slack-Smith —seven complete specimens (WAM Z99089); stn SO1/84/073, 14°10.9’S, 122°35.1’E to 14°122.5’S, 122°32.1’E, 350 m, 14 February 1984, coll. S.M. Slack-Smith —three complete specimens (WAM Z99091); Lacepede Archipelago, stn SO1/84/054, 15°51.2’S, 120°44.3’E to 15°49.3’S, 120°45.3’E, 348–350 m, 10 February 1984, coll. S.M. Slack-Smith —one complete specimen (WAM Z 59451); Kimberley, Beagle Bay, stn SO1/84/056, 15°20’S, 121°09.6’E to 15°18’S, 121°11.2’E, 300–302m, 11 February 1984, coll. S.M. Slack-Smith —three complete specimens (WAM Z59453, WAM Z59454); Beagle Bay, stn SO1/84/059, 15°09.4’S, 121°05.5’E to 15°11.4’S, 121°03.8’E, 448–450 m, 11 February 1984, coll. S.M. Slack-Smith —two young complete specimens (WAM Z59456); Kimberley, Collier Bay, stn SO1/84/074, 14°16.5’S, 122°34.4’E to 14°13.6’S, 122°38.3’E, 302 m, 14 Feruary 1984, coll. S.M. Slack-Smith —one young complete specimen (WAM Z59465); Kimberley, York Sound, stn SO1/84/081, 12°54.4’S, 123°0.2’E to 12°50.6’S, 123°0.4’E, 452–462 m, 15 February 1984, coll. S.M. Slack-Smith —three complete specimens (WAM Z59467); Kimberley, Cape Leveque, stn SO1/84/082, 13°07.2’S, 123°15.7’E, 400 m, 15 February 1984, coll. S.M. Slack-Smith —two young complete specimens (WAM Z59468); Kimberley, Cape Leveque, stn SO1/84/084, 14°57.6’S, 121°40.5’E to 14°56.4’S, 121°42.5’E, 200–236 m, 16 February 1984, coll. S.M. Slack-Smith —one complete specimen (WAM Z59469); Kimberley, Cape Leveque, stn SO1/84/085, 14°52.2’S, 121°41.7’E to 14°53.7’S, 121°39.9’E, 220–224 m, 16 February 1984, S.M. Slack-Smith —seven complete specimens (WAM Z59470). Depth range. 200–560 m. Measurements. Length 33.7 mm, width 27.0, thickness 19.6 mm. Remarks. Terebratulina callinome is the second most common species in the studied material. This species is large as for the genus. Its shell is elongate oval in outline with the surface covered with numerous ribs flattening anteriorly. The inner socket ridges are narrow. The loop forms a ring with a transverse band medially folded. Terebratulina callinome is recorded for the first time from off Australia and this is its southernmost occurrence, being previously known from the NW Pacific from Japan to the Philippines, Indonesia and Borneo (Jackson & Stiasny 1937; Cooper 1973b; Zezina 1981, 2010; Logan 2007).