. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 2. Triviella splendidissima n. sp. Ventral Outlines of the shell. View from the view. apex (from behind). distance; edge between base and columella distinctly marked; fossula rather broad but very steep and very slightly concave, inner border slightly projecting with two feeble denticles. Length 7-8 mm., breadth 7-3 mm., altitude 6-2 mm. Number of labial teeth, 12. Number of columellar teeth, 14. Number of ribs round the shell 58, while 12 ribs cross the dorsum. Hab.—One living example dredged o
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 2. Triviella splendidissima n. sp. Ventral Outlines of the shell. View from the view. apex (from behind). distance; edge between base and columella distinctly marked; fossula rather broad but very steep and very slightly concave, inner border slightly projecting with two feeble denticles. Length 7-8 mm., breadth 7-3 mm., altitude 6-2 mm. Number of labial teeth, 12. Number of columellar teeth, 14. Number of ribs round the shell 58, while 12 ribs cross the dorsum. Hab.—One living example dredged off Cape Morgan in 77 fathoms ( Mus., A3534). This species is in some ways intermediate between Trivia and Triviella; the latter genus was founded by Jousseaume * in 1884 with the well-known South African Cypraea oniscus Lamarck as type. We assign our new species to Triviella on account of the coarse labial teeth and the characters of the fossula, the posterior outlet and the columella. The narrowness of the aperture (caused by the thickening of the lip) and its angular left border are more as in Trivia, though the latter character is noticeable also in costata Gmelin, which is certainly a Triviella. * Bull. Soc. Zool. France, ix, p. 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
