MOLL QSC A. 
403 
Delphinula laciniata. — The Fringed Delphinula. 
Plate LXXXV. fig. 22. 
Umbilicus large, surrounded by large vaulted scales, in spiral 
rows; also with strong waved spiral striee; brownish-red, varie¬ 
gated with white. Two inches long. Inhabits the Indian seas. 
Genus 46.— SCALARI A.— Lamarck. 
Generic Character. —Shell subturrited, with longitudinal, ele¬ 
vated, subacute, interrupted ribs; aperture rounded; margins 
united in a circle, and a reflected ridge. 
Scalaria pretiosa. — The Wentletrap, or Precious Scalaria. 
Plate LXXXV. fig. 20. 
Conical, smooth, cream-yellow; volutions deeply divided ; 
spire detached, with a deep umbilicus; volutions connected by 
longitudinal ribs ; body extremely ventricose. One and a half 
inch long. Inhabits the Indian Oceari. 
Genus 47.—VERMETUS.— Lamarck. 
Generic Character. —Shell thin, tubulose, loosely spiral in the 
lower part, three or four upper volutions, regularly spiral; at¬ 
tached to other substances by the apex of the spire; aperture 
orbicular, margins united, and provided with an operculum. 
Vermetus lumbricalis. — The Worm-like Vermetus. 
Plate LXXXV. fig. 24. 
Variously twisted; reddish-brown, sometimes clouded with 
darker brown. Two to four inches long. Inhabits the African 
seas. 
TRIBE III.-PLICACEA. 
Shell with the aperture somewhat contracted, and the colu¬ 
mella plaited. 
Genus 48. — PYRAMIDELLA. — Lamarck „ 
Generic Character. —Shell turrited, destitute of epidermis; 
aperture entire, semi-ovate, the outer lip with a sharp edge; 
columella produced at the base, and subperforated, provided 
with three transverse plaits. 
