. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO KNOWLEDGE OF MARINE MOLLUSCA 61 Aperture ij— if times the spire. Protoconch ih whorls, alt. 1-5, diam. 2 mm., smooth but worn;. Postnatal whorls 4. Periostracum thick, forming close axial wrinkles, the free margins of which are minutely fimbriate. Operculum slightly convex. 23 x 12 mm. in 51 mm. shell. Fulvous or slightly pinkish or violaceous, periostracum dull brown, operculum, dark brown. Animal pale, sprinkled with black specks around margin of foot, siphon closely ringed wi
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO KNOWLEDGE OF MARINE MOLLUSCA 61 Aperture ij— if times the spire. Protoconch ih whorls, alt. 1-5, diam. 2 mm., smooth but worn;. Postnatal whorls 4. Periostracum thick, forming close axial wrinkles, the free margins of which are minutely fimbriate. Operculum slightly convex. 23 x 12 mm. in 51 mm. shell. Fulvous or slightly pinkish or violaceous, periostracum dull brown, operculum, dark brown. Animal pale, sprinkled with black specks around margin of foot, siphon closely ringed with black. Radula (of Algoa Bay specimen] with 57 rows, fig. 15(a). M] \rv\? -^. v vvv yaT ~vn/V' Fig. 15. Central and lateral radula plates of [a) Sykanocochlis ancilla (Hanley); (b) Ancilla bullioides Rve.; (c) Melapium lineatum (Lam. Central plate of (d) Ancilla fasciata Rve.; (e) A. fasciata-albozonata Smith; (/), (g) fasciata, variation of cusps; (h A. obtusa (Swainson); (i) A. contusa Rve.; (j) A. error urn Tomlin. Kaffraria (Hanley . Port Elizabeth (Sowerby), Port Alfred (Bartsch, Turton); off Great Fish River, 40 fathoms, one dead (S. Afr. Mus. coll.). Living: 33' 45' S. 2bc 44' E. (off the Kowie), 40 fathoms (Sowerby 1903, typ. err. 34" 45' S. 25' 44' E. : Algoa Bay, 39 metres, living (). Off Cape St. Francis, 45 fathoms (Tomlin, fide Burnup . The shell of the living specimen recorded by Sowerby from off the Kowie is in S. .Afr. Mus.; no report was published on the animal. Gen. Ancilla Lam. 1799. Lamarck. Man. Soc. H. N. Paris, i. p. 70. 1903. Yon Martens. D. Tic/see Exp., vii. pp. 37, 38. 1925. Thiele. ibid., xvii. p. 189 (S. Afr. Ancilla species, comments on von Martens 1903). Shell ovate-fusiform, spire low or high, often covered with callus: body whorl with basal spiral groove, which may form a denticle on outer lip. Parietal callus often extending down the columella; canal short and broad. Operculum oval, nucleus apical (or subapicaf : sometimes r
Size: 2352px × 1062px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
