. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 148 ANNALS OF THE SOUTH AFRICAN MUSEUM Remarks. Although Thiele described only one dead shell, the present specimens agree with his description and figure, but on some tubes there are 3 longitudinal lirae. Thiele said his shell bore a 'distant similarity' with the Mediterranean subcancellatus, and consequently Turton's shells recorded under the latter name should probably be assigned to Thiele's species. Vermetus (Dendropoma) tholia (K. & M.) Dendropoma tholia Keen & Morton, i960, p. 41, pi.
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. 148 ANNALS OF THE SOUTH AFRICAN MUSEUM Remarks. Although Thiele described only one dead shell, the present specimens agree with his description and figure, but on some tubes there are 3 longitudinal lirae. Thiele said his shell bore a 'distant similarity' with the Mediterranean subcancellatus, and consequently Turton's shells recorded under the latter name should probably be assigned to Thiele's species. Vermetus (Dendropoma) tholia (K. & M.) Dendropoma tholia Keen & Morton, i960, p. 41, pi. 3, text-figs. 6-13, 20-22, 33. Protoconch 1J-2 whorls, 1st whorl smooth, 2nd with axial striae. Tubes irregularly coiled, in colonies attached to rocks. No longitudinal lirae; annular growth-lines irregular. Aperture diam. 1-7 mm. (external 2 mm.).. Fig. 29. a, Vermetus corrugatus Thiele, 2 views of operculum, b, two spinate processes from oper- culum of V. quincunx n. sp. c, two views of protoconch of V. quincunx n. sp. d, two views (lower surface and external) of V. qfricanus Bartsch. e, Tenagodus chuni Thiele, operculum. Operculum externally conical or dome-shaped, internally concave, with central mamilla. Tube whitish outside, dark brown internally; operculum mahogany- brown. Inhaca Island, Delagoa Bay. Vermetus quincunx Figs. 28 c, 29 b, c Vermetus tricuspe (non Morch), Sowerby, p. 39. Protoconch planorboid or slightly trochoid, ij whorls, nucleus smooth, whorl with tiny brown granules or tubercles arranged in quincunx. Tube irregularly coiled, appearing at first glance smooth, but with feeble longitudinal lirae showing in places; growth-lines more distinct, but not lamellate or rib- like. Protoconch 1-5X1 mm., internal diam. tube up to 2-5 mm. Operculum externally slightly concave, spirally coiled, each whorl with marginal arborescent spinate processes. Each process like an elongate narrow. Please note that these images are extracted from scanned page images that ma
Size: 2611px × 957px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
