Epitonium avalites
(Jousseaume, 1912)
Description:
Dimensions range from 7 mm - 7.3 mm high and 3 mm wide.
Width to height ratio: 0.43:1 ~ 0.41:1
Shell: elongate-conical, turbinated; minute to small. Exterior colour white. About 9 whorls, almost disjointed; protoconch with ~3 whorls small, smooth, apex blunt; teleoconch with ~6 whorls. Suture deeply incised. Umbilicate: covered by columella edge. Approximately 17 costae on the body whorl. Costae are low costae. Costae some costae align with previous whorls, but not all; Intercostal spaces with fine thread-like striae. Columella straighter and thinner than the outer lip. Aperture round; peristome reflexed, slightly crenulated, angled near the suture.
Jousseaume [1912] notes that the ' shell, in both size and ornamentation, resembles Sc. amica; when viewed dorsally, distinguishing them would be difficult, but from the front, the umbilical slit and the absence of a funiculus doubling the columellar edge make confusion impossible'.
Distribution:
Aden
Habitat:
not reported
Type Material:
Holotype: Paris Museum 2683 for Epitonium avalites (Jousseaume, 1912). [Kaicher, S.D., 1981]
Holotype: MNHN 4205 [as Avalitiscala avalites Jousseaume, 1912] - Type Locality: Aden. [Brown, L. & Neville, B.D., 2015]
Kaicher, S.D. (1981). Card #: EP2-3121.
Distribution
as listed in source literature
Jousseaume, F. (1912).
Plate V. Fig. 27.
Plate 221.
Shell small, elongate-conical, turbinated, dull white, encircled spirally by fine thread-like striae and longitudinally latticed with 17 thin, slightly oblique varices. Whorls 9, convex; the first 3 small and smooth, the following ones ornamented, almost disjointed due to the deep suture. Aperture round; peristome reflexed, slightly crenulated, angled near the suture.
Length 7.3 mm; diameter 3 mm.
Habitat: Aden, a single well-preserved specimen.
Kaicher, S.D. (1981).