. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO THE KNOWLEDGE OF SOUTH AFRICAN MARINE MOLLUSCA 609 Shoulder not prominent, sulcus not concave, lip sinus broad, adjoining suture, no parietal callus. Shell 8x3 mm, greyish white, 3 faint brown bands, one below the shoulder, the broadest one in middle of base, starting from the suture (only just visible above the suture), upper and lower margins of the band with darker spots and edging. Locality: Langebaan (Saldanha Bay), Drillia diasi Barnard, 1958 Drillia diasi Barnard, 1958:
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. CONTRIBUTIONS TO THE KNOWLEDGE OF SOUTH AFRICAN MARINE MOLLUSCA 609 Shoulder not prominent, sulcus not concave, lip sinus broad, adjoining suture, no parietal callus. Shell 8x3 mm, greyish white, 3 faint brown bands, one below the shoulder, the broadest one in middle of base, starting from the suture (only just visible above the suture), upper and lower margins of the band with darker spots and edging. Locality: Langebaan (Saldanha Bay), Drillia diasi Barnard, 1958 Drillia diasi Barnard, 1958: 137. Additional record: 340 16' S. 180 14' E., 158 metres, one dead. Drillia erepta Fig. 6b Thesbia algoensis non Thiele, Barnard, 1958: 161, fig. 30. Description: Protoconch ij whorls, smooth. Axial ribs about 15 on 1st whorl, 18-19 on 2nd, 21 on 3rd; spiral lirae 4 on 1st whorl, 4-5 on 2nd, 5 on 3rd, also one weaker lira on the sulcus (in my 1958 description the lira on the sulcus was included in the numbers of the spiral lirae). Shell 4-5 X 2-25 mm. Locality: Off Cape Morgan, 47 fathoms, one worn specimen; 330 50' S. 250 54' E. (Algoa Bay) (probably about 30 fathoms). Off Cape St. Blaize, 125 fathoms, 2 dead. Type: A8734, A29763, A29764, Pieter Faure collection. Remarks: The three additional specimens are less worn than the Cape Morgan one, which is now shown to have been wrongly referred to T. algoemis, and must be rescued from its false position. The sutures are more impressed, the profile more convex than in T. algoensis, and there is a definite, though not concave, sulcus; and as previously remarked the ribs and lirae are fewer in number. The protoconch and lip sinus show that this is not a Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : Th
Size: 1896px × 1318px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
