Neoferdina glyptodisca Fisher 1913

Figure 16 A–D

Fisher 1913: 282; Fisher 1919: 370; H.L. Clark 1921: 58; Djakonov 1930: 249 (as Ferdina glyptodisca)

Livingstone 1931: 307; 1936: 385; Clark & Rowe 1971: 65, note 77; Jangoux 1973: 776, 783 (as Neoferdina glyptodisca)

Taxonomic comments. This species is distinctive from the other species in that it possesses low, weakly convex plates on the abactinal surface rather than the strongly convex plates (Figs. 16 A, B) observed in most other Neoferdina species. Although N. glyptodisca possesses bare convex plates on the abactinal surface, the marginal and abactinal plates are very similar to those in Paraferdina sohariae (Marsh and Price 1991: Fig. 4). Should the bare abactinal plates character be discovered to significantly vary, these two species might be considered closely related.

Occurrence. Butung Strait, Indonesia, 44 m

Material examined. USNM 32636; Holotype, Labuan Blanda, Butung Strait, Celebes Island, Sulawesi Island, Indonesia. -4.45, 122.928, 44m (24 fms); Coll. USFC Steamer Albatross St. 5640; 1 wet spec. R=3.5, r=1.1.