. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. d Fig. 35- (a) Pyrene pura (von Martens), (b) P. parhelena n. sp. (c) 'Columbella' polyarosus n. sp., apex. (d) 'Columbella' confertilirata n. sp., apex and operculum. White; two shells with very faint indications of subsutural brown spots and even fainter peripheral marks. Periostracum pale buff or yellowish. Radula with c. 200 rows, central plate very delicate, lateral plate apically bifalcate, proximal cusp moderately strong, separated rather widely from the apical cusps. 340 31' S. 230 2' E., 500
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. d Fig. 35- (a) Pyrene pura (von Martens), (b) P. parhelena n. sp. (c) 'Columbella' polyarosus n. sp., apex. (d) 'Columbella' confertilirata n. sp., apex and operculum. White; two shells with very faint indications of subsutural brown spots and even fainter peripheral marks. Periostracum pale buff or yellowish. Radula with c. 200 rows, central plate very delicate, lateral plate apically bifalcate, proximal cusp moderately strong, separated rather widely from the apical cusps. 340 31' S. 230 2' E., 500 metres (von Martens: one); 350 16' S. 220 26' E., 155 metres (Thiele: one pura, 2 helena). Cape Point NE. \ N. 18 miles, 135 fathoms, one living; Vasco da Gama Peak N. 71 ° E. 18 miles, 230 fathoms, one dead; Lion's Head N. 670 E. 25 miles, 131-136 fathoms, 2 dead; 10 dead without precise locality (S. Afr. Mus. coll.). Remarks. These shells are clearly referable to von Martens's species. Thiele separated as helena two out of three shells taken in the same locality, seemingly because these two showed spiral striae only on the lower part of the whorl. His figure of helena resembles that oipura in shape. 11. 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 : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
