. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO THE KNOWLEDGE OF MARINE MOLLUSCA J75 Radula with 55-60 rows, central plate with strong slender median cusp, without side cusps, lateral plate with a single strong unserrated cusp, 2 marginal plates, strongly uncinate, unserrated. Mantle edge frilled. Eyes not traceable in the preserved material. Fossil: Quaternary: raised beach, Little Brak River, Mossel Bay (S. Afr. Mus.). False Bay to Algoa Bay, 22-54 fathoms, and off Cape Point, 250 fathoms (Tomlin: material). Living: Fa
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO THE KNOWLEDGE OF MARINE MOLLUSCA J75 Radula with 55-60 rows, central plate with strong slender median cusp, without side cusps, lateral plate with a single strong unserrated cusp, 2 marginal plates, strongly uncinate, unserrated. Mantle edge frilled. Eyes not traceable in the preserved material. Fossil: Quaternary: raised beach, Little Brak River, Mossel Bay (S. Afr. Mus.). False Bay to Algoa Bay, 22-54 fathoms, and off Cape Point, 250 fathoms (Tomlin: material). Living: False Bay, 51-73 metres (, and Fisheries Survey vessel Africana); 290 30' S., 310 28' E. 68 metres (Africana, per ).. Fig. 33. a, Turritellaferruginea Rve. protoconch. b, T. sanguinea Rve. protoconch. c, Ad. & Rve. protoconch. d, T. carinifera Lam. protoconch. e, T. carinifera, aberration of 3rd-8th whorls. /, sculpture on gth-i3th whorls of T. carinifera from Port Nolloth. g, sculp- ture on 7th-i3th whorls of T. carinifera specimen from Still Bay. h, sculpture on 1 ith-i4th whorls of T. carinifera specimen from Still Bay. i, T. chrysotoxa Tomlin protoconch. j, Turritella sp., protoconch and ist-6th whorls, k, T. capensis Krss. protoconch. /, T. minuta Turton, protoconch and ist~3rd whorls, m, T. minuta, protoconch and 1st whorl. Remarks. The juveniles from the Pieter Fame bottom-samples add nothing to the distribution as given above. The large 111 mm. specimen was taken in False Bay by the University of Cape Town. None of the Pieter Fame examples are quite so large. The protoconch is larger and the shell broader than sanguinea; and the pitch of the whorls less steep. Worn examples without the bicingulate early whorls, the beaded lirae, and cancellate sculpture, may not be easy to distinguish from sanguinea; but the greatest width of a whorl is not below the middle of the whorl, and usually the margin of the base is more Please note that these
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
