Epitonium alabiforme
Kilburn, 1985
Description:
Dimensions range from 3.7 mm - 4.2 mm high.
Width to height ratio: 00:1 ~ 00:1
Shell: narrowly pyramidal; minute. Exterior colour white. About 5 whorls, strongly convex; protoconch damaged in holotype; teleoconch strongly convex. Suture very deep but simple. Umbilicate: narrow, deep. Approximately 13 - 16 costae on the body whorl. Costae are prosocline, low, rather narrow, varying in width. Costae discontinuous; not reflexed. Intercostal spaces smooth. Aperture oblong-ovate, lip with a wide, slightly rounded, thick costae behind; peristome moderately thick, except for labium, which is not reflexed.
Kilburn [1985] notes that the conspicuously swollen posterior part of each whorl and the deep suture distinguish E. alabiforme from E.(P .) perlucidum and E.(P .) lachrymulum (Jousseaume, 1912) from the Red Sea.
Distribution:
Natal, South Africa [Kilburn, 1985: 296].
Habitat:
shallow water [Kilburn, 1985: 296].
Etymology:
Named as the species resembles members of the cerithiacean genus Alaba H. & A. Adams, 1853.
Kilburn, R.N. (1985). pp: 291. Plate 104, E. (Perlucidiscala) alabiforme sp. n.:.
104, Holotype, 3,7 x 1,7 mm;
Distribution
as listed in source literature
Type Material:
The following list brings together type material and other cited specimens as reported in the sources examined, grouped under the names and designations used in each source. The same specimen may appear in multiple entries drawn from different sources. Some entries concern other species included by authors for comparison; inclusion in this list does not imply synonymy.
Epitonium (Perlucidiscala) alabiforme Kilburn, 1985HolotypeNM B7270/T2927. Durban Bay, South Africa. shallow water. [Brown & Neville, 2015: 34].NM B7270/T2927. [Kilburn, 1985: 296].ParatopotypeNM B7271/T2958. [Kilburn, 1985: 296].
Kilburn, R.N (1985).
103, Holotype, 3,7 x 1,7 mm;
104, Holotype, 3,7 x 1,7 mm;
