Epitonium laidlawi
(Melvill & Standen, 1903)
Description:
Dimensions range from 8.8 mm - 13 mm high and 4.1 mm wide.
Width to height ratio: 0.47:1 ~ 0.32:1
Shell: attenuate, slender, fusiform; thin; small. Exterior colour white. About 12 whorls; protoconch with 2-3 whorls smooth whorls; teleoconch with 8-9 whorls ventricose, closely and beautifully finely lamellat. Spire with 8 whorls. Suture deep, impressed. Umbilicate: fenestrated. Approximately 44 costae on the body whorl. Costae hooked near the sutures above. Intercostal spaces intercostal space with 16 distinct spiral striae on centre of whorl and about 13 minute spiral striae below the suture on the penultimate whorl;. Interstices with approximately 13 - 16 spiral striae per whorl. Columella margin broadened. Aperture slightly rounded; peristome complete.
Distribution:
Off Kii Peninsula, Japan.; Persian Gulf
Habitat:
dredged at 60 m deep, 11-27 m.
Etymology:
named for Mr. Frank F. Laidlaw., With this we are very pleased to be able to connect the name of our friend, Mr. Frank F. Laidlaw, whose zoological researches in Malayana during the "Skeat" Expedition have proved of much scientific importance. [Melvill & Standen, 1903]
Type Material:
Syntypes: NHMUK 1903.12.15.22-23 for Epitonium laidlawi (Melvill & Standen, 1903) - Locality: Maskat, Persian Gulf, 6-15 fms [= 11-27 m].. [Brown, L. & Neville, B.D., 2015]
Melvill, J. C. & Standen, R (1903). Plate VII. Fig. 8.
Scala laidlawi sp.n. (PI. VII., fig. 8).
Distribution
as listed in source literature
Melvill, J. C. & Standen, R (1903).
Plate VII. Fig. 8.
Scala laidlawi sp.n. (PI. VII., fig. 8).
pp: 344-345.
Kaicher, S.D. (1980).
Card #: EP1-2337.
Whitish with strong spiral sculpture and numerous low, somewhat irregularly spaced costae; to 13 mm. Offshore in fairly shallow water.
Nakayama, T. (2003).
pp: 117. Plate 7. Fig. 8-11.
Amaea (Filiscala) Laidlawi (Melvil &Standen, 1903)
height 10.2 mm; breadch 41. m (MC);
fig. 10, protoconch;
fig. 11, surface sculpture
arsint.com (2023).
