Terebratulina photina Dall, 1920

Terebratulina photina Dall, 1920 View in CoL

( Fig. 3F–J View FIGURE 3 )

1920 Terebratulina photina Dall , pp. 309–310.

1937 Terebratulina photina Dall—Jackson & Stiansy , p. 12, pl. 1, figs. 17–18.

1940 Terebratulina photina Dall—Hatai , pp. 232–233, pl. 5, figs. 75–76, 94–95; pl. 6, figs. 23, 25–26, 40.

1973b Terebratulina photina Dall—Cooper , pp. 377–378, pl. 42, figs. 12–18.

2010 Terebratulina photina Dall—Zezina , p. 1186.

2018 Terebratulina photina Dall—Bitner & Romanin , pp. 556, 558, fig. 6E–H.

Material examined. NW Australia, Kimberley , Cape Lambert, stn SO1/82/32, 18°36’S, 117°08’E to 18°36’S, 117°10’E, 500–504 m, 8 April 1982, coll. L.M. Marsh —one young complete specimen ( WAM Z59448 About WAM ) GoogleMaps ; Lacepede Archipelago , stn SO1/84/051, 15°40.2’S, 120°37.3’E to 15°42.6’S, 120°34.6’E, 500–504 m, 10 February 1984, coll. S.M. Slack-Smith —five complete specimens ( WAM Z59450 About WAM ) GoogleMaps ; Kimberley , Augustus Island, stn SO1/84/079, 13°17’S, 122°37.4’E to 13°18’S, 122°35.8’E, 484–494 m, 15 February 1984, coll. S.M. Slack-Smith —one complete specimen ( WAM Z59466 About WAM ) GoogleMaps ; Lacepede Archipelago , stn SO1/84/097, 16°56.7’S, 119°51.2’E to 16°55.1’S, 119°55.1’E, 432 m, 20 February 1984, coll. S.M. Slack-Smith —nine complete specimens ( WAM Z59471 About WAM ) GoogleMaps ; Kimberley , Broome, stn SO1/84/120, 17°59’S, 118°11’E to 18°01’S, 118°08’E, 530–560 m, 24 February 1984, coll. S.M. Slack-Smith — ten complete specimens ( WAM Z59472 About WAM ) GoogleMaps .

Depth range. 432–560 m.

Measurements. Length 16.9 mm, width 14.6 mm, thickness 7.0 mm.

Remarks. With 26 specimens Terebratulina photina is relatively common in the material examined. Its nearly smooth surface with only fine radial lines distinguishes this species from other Terebratulina species. The beak is pointed with distinct beak ridges and an oval, small foramen. Similar to T. callinome , T. photina is recorded for the first time from Australia and this finding extends its geographic range to the south, previously known from Japan, the South China Sea to the Philippines and Borneo ( Hatai 1940; Jackson & Stiasny 1937; Cooper 1973b; Logan 2007; Zezina 2010; Bitner & Romanin 2018).