Dryptus lasalleanus F. Haas, 1959

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: AMPHIBULIMIDAE

ESPÉCIE: Dryptus lasalleanus F. Haas, 1959

Tamanho médio: 58 mm

Ocorrência: Venezuela

Localidade tipo: Mucurubá, Estado de Mérida, Venezuela

Nome original: Dryptus lasalleanus F. Haas, 1959

Descrição original:

(Hass, 1959): “Shell elongated-ovate, imperforate, rather heavy. Whorls 5 1/4, somewhat convex, of regular growth, separated by a distinct suture bordered below by a narrow whitish zone. The last whorl descends more obliquely, very shortly ascending at the aperture. The earlier whorls have a purplish tint which changes into a blackish brown at the beginning of the penultimate whorl. The first two whorls are finely and densely zigzag- wrinkled, a feature also present on the third whorl, which, in addition, develops subvertical striae which become gradually rib-like, making the suture appear almost crenulate.

On the fourth whorl these rib-striae, though somewhat fainter, stand out by their darker color, whereas on the last whorl they show only as projecting, darker-colored growth marks. There is a marking of very faint, submicroscopical vertical wrinkles between the growth lines. A very fine, indistinct and interrupted spiral striation crosses these vertical wrinkle-lines (fig. 60) . Aperture decidedly higher than the spire, ovate, pointed above, bluish inside, with a thickened, slightly reflexed lip of buff color; columella very slightly folded, parietal callus thin, bluish.”

Fotos: (1) Senckenberg Natural History Museum, Frankfurt: PARATYPE SMF 181960, Mucurubá, Prov. Mérida, Venezuela, 51.7mm

Fontes:

Descrição original: Haas, F. (1959). Inland mollusks from Venezuela, southern Brazil, and Peru. Fieldiana: Zoology. 39 (31): 363-371, disponível online em https://biodiversitylibrary.org/page/2860397
página(s): 363

Simone, L. R. L. (2006). Land and Freshwater Molluscs of Brazil. Editora Gráfica Bernardi, FAPESP. São Paulo, 390 pp. página(s): 146, Fig. 491

MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1293190