Echinus gilchristi Bell, 1904

Fig. 43 A–C.

Echinus gilchristi Bell, 1904: 170 –171; Döderlein, 1906: 213 –216. Pl. XXVI, Fig. I. Pl. XXXV, Figs 10, 14. Pl. XLVI, Fig. 9; Döderlein, 1910: 248; Mortensen, 1943: 57 –60. Pl. XV, Figs 7–12, Pl. XVI, Figs 1–9, Pl. LV, Fig. 14, 16, 20, 26, 27; H.L. Clark, 1923: 384 –385. Pl. XIII; H.L. Clark, 1924: 6 –7; H.L. Clark, 1925a: 112; Clark & Courtman-Stock, 1976: 236; Schultz, 2010: 188.

Material examined. MBC-A 022230; MBC-A 022236; MBC-A 022315; MBC-A 022316; MBC-A 022317; MBC- A 022318; MBC-A 022319; MBC-A 022320; MBC-A 022321; MBC-A 022322; MBC-A 022323; MBC-A 022324; MBC-A 022325; MBC-A 022326; MBC-A 022327; MBC-A 022328; MBC-A 022685; MBC-A023313; MBC- A027741; MBC-A027742; MBC-A077822; MBC-A077830; MBC-A077835; MBC-A077834; MBC-A077829; MBC-A077833; MBC-A077838; MBC-A077964; MBC-A077827; MBC-A077831; MBC-A077826; SAMC- A23418; SAMC-A28842; MBC-A077836; MBC-A077839; MBC-A077837; MBC-A077823; MBC-A077832; MBC-A077828; A 22685; A 22236; A 22230; A23082; A23088.

Identification. Test subconically raised, brownish in color. Spines short, slender, fusiform; creamish in color. Mouth with protruding teeth, encircled by fleshy lip.

Global maximum size. Maximum test diameter 84 mm.

Global distribution. Endemic to South Africa, at 40–1280 m depth (Döderlein 1910; Mortensen 1943; Schultz 2010).

Remarks. Differs from Dermichinus horridus in its small, low test and fleshy lip around the peristome, Furthermore, D. horridus has genital plates extending into interambulacra, whilst those of E. gilchristi are confined to the apical area.