. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 78 ANNALS OF THE SOUTH AFRICAN MUSEUM Similar to townsendi Melvill and Standen i go i, from Gulf of Oman, in having 5 main spiral lirae. Trichotropis zuluensis Figs. 12 d, 13 c Protoconch 2 whorls, diam. 0-75, alt. 0-5 mm., smooth. Postnatal whorls 4, profile angular at the periphery. Retractive axial ribs 12 on 1st whorl, 14 on 2nd, 16 on 3rd, 20 on 4th, forming small nodules where they cross the spiral lirae; 1 strong spiral lira at periphery, above which 1 on 1st whorl, 2 on 2nd and 3rd, 4 o
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 78 ANNALS OF THE SOUTH AFRICAN MUSEUM Similar to townsendi Melvill and Standen i go i, from Gulf of Oman, in having 5 main spiral lirae. Trichotropis zuluensis Figs. 12 d, 13 c Protoconch 2 whorls, diam. 0-75, alt. 0-5 mm., smooth. Postnatal whorls 4, profile angular at the periphery. Retractive axial ribs 12 on 1st whorl, 14 on 2nd, 16 on 3rd, 20 on 4th, forming small nodules where they cross the spiral lirae; 1 strong spiral lira at periphery, above which 1 on 1st whorl, 2 on 2nd and 3rd, 4 on 4th whorl; below periphery 1 lira, with a second just visible in the suture, which is continued from top of apertue as a strong lira; 5 lirae on concave base. Between the axial ribs numerous fine growth-lines, which. Fig. 12. Lippistes cornu (Gmelin). a, 5-lirate form, b, 8-lirate form, with periostracum. c, 20-lirate form {multilineata Turton). d, Trichotropis zuluensis n. sp. however do not produce a milled edge on the lirae as they do in, for example, borealis. Columella slightly bent. 10-5 X 6 mm. White, periostracum pale brown, fibrous, with filamentous processes at the nodules on the peripheral and basal lirae. Radula with 35 rows, central plate trapezoidal, wider behind than in front, 4 denticles on either side of median cusp, lateral plate with sinuous front margin, 3-4 denticles on inside and several on outside of main cusp, both marginal plates rather stout, entire; the bulge on front margin of the lateral plate appears to clip under the flange on the preceding plate. OfTDurnford Point, 90 fathoms, 1 living; off Cape Vidal, 80-100 fathoms, 1 dead (S. Afr. Mus. coll.). Remarks. Distinguished from capensis by the angular whorls, smooth proto- conch, and fewer spiral lirae. T. pulcherrima Melv. & Stand. (1903b, p. 296, pi. 20, fig. 15), from the Guli of Oman, has the upper whorls 2-, the body-whorl 4-carinate, no specially strong peripheral Please note
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