Caecum cf. oahuense Pilsbry, 1921

Vannozzi, Angelo, Pizzini, Mauro & Raines, Bret, 2015, Revision of South African Caecidae (Mollusca: Gastropoda), African Invertebrates 56 (1), pp. 99-99 : 119

Caecum cf. oahuense Pilsbry, 1921

Figs 14A–C , 15 , 25E

Material examined: SOUTH AFRICA: KwaZulu-Natal: 1 lv, Aliwal Shoal, off Umkomaas area , 27 m, SCUBA, i.1988 ( JPM) .

Comparative material examined: Caecum oahuense , lectotype ( ANSP 127978 ) selected by Pizzini & Raines (2011: 29, fig. 2I) .

Distribution: Caecum oahuense is found in the eastern Pacific Ocean ( Pizzini & Raines 2011). A single specimen tentatively attributed to this species was found on the eastern South African coast ( Fig. 15 ). The occurrence of Caecum oahuense in South Africa needs confirmation.

Remarks:This single specimen differs somewhat from C. oahuense by the more slender tube and finer sculpture.

Figures

Fig. 14. Caecum cf. oahuense Pilsbry, 1921, South Africa, Aliwal Shoal, off Umkomaas area (JPM): (A) right side; (B) ventral side; (C) microsculpture. Scale bar = 1 mm (A, B); 250 µm (C).

Fig. 15. Distribution map of Caecum cf. oahuense Pilsbry, 1921 (■), C. sepimentum de Folin, 1868 (▲) and C. lindae sp. n. (▼).

Fig. 25. South and western African Caecum and Parastrophia species: (A) P. avaricosa sp. n., holotype, Mzamba (NMSA E1665/T3354); (B, C) P.ornata sp. n., Mzamba,near Natal border — (B) holotype (NMSA W9677/T3379), (C) paratype (JPM 2119); (D) C. sepimentum de Folin, 1868, Kosi Bay (NMSA S2010); (E) C. cf. oahuense Pilsbry, 1921, Aliwal Shoal, off Umkomaas area (JPM); (F) Caecum cf. gulosum Hedley, 1899, Kosi Bay (NMSA S2869); (G, H) C. succineum de Folin, 1880 — (G) between Bhanga Nek andKosi Bay (NMSAS1586), (H)Aliwal Shoal, off Scottburgh (NMSA W9684); (I) C. cf. glabrum (Montagu, 1803), Knysna, Gericke Point, Sedgefield (NMSA W9658); (J) C. glabrum (Montagu, 1803), Rabat, Morocco (MP); (K) C.lindae sp. n., holotype, Cape Morgan Lighthouse (NMSA W9682/T3924); (L, M) C. cf. musorstomi Pizzini, Raines & Vannozzi, 2013, Landers reef (JPM); (N, O) C.austrafricanum sp.n., paratypes,Walker’s Point,W of Knysna (NMSA W9656/T3351);(P) C.knysnaense sp.n., paratype,Knysna,Gericke Point,Sedgefield (NMSAW9673/ T3364); (Q) C. intortum sp. n., paratype, Walker’s Point, W of Knysna (NMSA W9669/T3360); (R) C. macrum van der Linden & Moolenbeek, 2000, Charbonnier, Senegal (MP); (S, T) C. crassum de Folin, 1870, Gabon (MP): (S) adult; (T) juvenile. Scale bar = 1 mm.