Popis
Autor: Jan Delsing
Text ID: 123346
Text Type: 1
Page: 0
Založeno: 07.05.2023 15:35:20 - Uživatel Delsing Jan
Language: EN
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AS Euthria turtoni:
Shell fusiform, varying in ground color from lavender to orange or even light brown. The shoulder usually is dark brown, while the rest is lightly dotted with the same color. Extreme apex of nucleus decollated; the first turn remaining is depressed and smooth. Postnuclear whorls appressed at the summit, strongly, slopingly shouldered. The shoulder, occupying the posterior half of the space between the sutures, is marked by about fifteen unequally developed and unequally spaced, punctate, spiral striations. Anterior half of whorls between the sutures ornamented with feebly expressed, low, broad riblets, which terminate at the anterior edge of the shoulder, where they appear as slight tubercles. Of these, 17 occur upon the last turn. Rostrum and posterior half of base finely, evenly, spirally Urate, the lirations being developed at the insertion of the columella. Posterior angle of aperture acute; columella sigmoid.
The type, Cat. No. 187020, U.S.N.M., came from Port Alfred (Coll. No. 555). It has six whorls, and measures: Length, 25 mm.; diameter, 11.5 mm. Cat. No. 186750, U.S.N.M., contains three additional specimens from the same locality (CoU. No. 109).
Bartsch, P., 1915. Report on the Turton Collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum.