Caecum succineum de Folin, 1880

Vannozzi, Angelo, Pizzini, Mauro & Raines, Bret, 2015, Revision of South African Caecidae (Mollusca: Gastropoda), African Invertebrates 56 (1), pp. 99-99 : 120

Caecum succineum de Folin, 1880

Figs 17 , 25G, H

Caecum succineum de Folin, 1880: 810 , 811.

Caecum succineum: de Folin 1881: 25 , pl. 2, figs 12, 13.

Caecum succineum: de Folin 1886: 685 , 686, pl. 3, figs 15, 16.

Caecum sp. a: Bosch et al. 1995: 49, n. 144.

Caecum succineum: Pizzini et al. 2013: 25 , 26, figs 11Q, R, 12A–C, 19I.

Type locality: St. 186, Flinders Passage, Cape York, 7 fms.

Type material examined: Lectotype ( NHMUK 1887.2.9.2344) selected by Pizzini et al. (2013: 25, fig. 11R).

Material examined: SOUTH AFRICA: KwaZulu-Natal: 1 lv, between Bhanga Nek and Kosi Bay, reef off marker 13 north, - 9–14 m ( NMSA S1586 ) ; 1 lv (operculum in a small glass vial), Kosi Bay , main reef, 1–4 km S of estuary mouth, - 18 m, underwater pump ( NMSA S2303 ) : 1 sh, Aliwal Shoal, off Scottburgh , - 10 m, sand and reef debris, hand-dredged D. Herbert 4.iv.1992 ( NMSA W9684 ) .

Distribution: Indo­West Pacific; in South Africa this species was collected from the eastern coast ( Fig. 17 ).

Remarks: This species is characterized by the presence of some rings in the abapical portion of the tube and by a low dome-shaped septum without mucro.

Figures

Fig.17. Distribution map of Caecum neocaledonicum de Folin, 1868 (■), C. succineum de Folin, 1880 (▲) and C. cf. glabrum (Montagu, 1803) (▼).

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.