PLATE XXXVII* 
1, 2. Voluta Cithara. {Harp Voluta) Oblong-ovate ; spire depressed; with remote ribs; pillar lip re¬ 
flected, with six plaits; a few transverse, spiral striae. 
3, 4. Fusus Multicostatus. {Many-ribbed Fusus.) Fusiform; spire, with three or four broad volutions, 
flattened above, straight on sides; body, with ten to fourteen smooth ribs; outer costal ribs with spiral, longi¬ 
tudinal striae ; aperture wide above, narrowed beneath ; pillar-lip reflected. 
5, 6. V. Labrella. {Small-Upped Voluta.) Pyriform ; pointed at base, transversely furrowed ; spire short, 
with five, slightly ribbed volutions; columella, with one, large, and several, small plaits; aperture as long as 
body ; outer lip tumid above. 
7. Nerita Angulata. {Angulated Nerita.) Sub-globose; body large, with elevated, spiral carina below 
centre ; spire small, obtuse ; aperture oblong. 
8, 9. V. Angusta. {Narrow Voluta.) Elongated; spire lengthened; volutions obliquely depressed; apex 
acute ; with seven or eight, longitudinal ribs ; with five, minute plaits on columella ; aperture narrow. 
10, 11. Nerinsea Goodhalli. {GoodhalVs Nerinoea.) Turreted, smooth; with many, concave volutions; 
interior with three plaits, one on columella, one opposite it, and another above it within volution; aperture 
rhomboidal. 
12. Pleurotomaria Undata. ( Waved Pleurotomaria.) Ventricose, sub-conic, with four, inflated volutions; 
body large; spire small; apex obtuse; base convex; with many, longitudinal, curved undulations ; lip, with 
deep sinus, with narrow band around volutions ; aperture orbicular. 
13, 14. Pseudoliva Obtusa. {Obtu.se Pseudolioa.) Obovate, smooth, ventricose; spire short, small, some¬ 
what concealed by expansion of inner lip; canal projecting; with transverse sulcus below middle of body, and 
with a few striae beneath it. 
15. Cerithium Giganteum. {Gigantic Centhmm.) V. Plate XXX\H., Fig. 18. 
16, 17. Phasianella Formosa. {Handsome Phctsianella.) Oblong-oval, sub-cylindrical, smooth; body very 
large ; spire minute; with four, inflated volutions and well-marked suture-line; base, with a few striae ; aper¬ 
ture elliptical; outer lip thin, even ; pilllar-lip reflected on columella. 
18, 19. Littorina Gracilis. {Slender Littorina.) Elongated, acute; with five, ventricose volutions ; apex 
pointed; aperture round; outer lip even; pillar-lip reflected on columella ; the whole, with wide, longitudinal 
sulci, crossed by transverse, spiral striae. 
20. Pleurotoma Articulata. {Articulated Pleurotoma.) Turreted, with eight or ten, convex volutions, with 
sinus nearly in middle, forming a broad band; surface smooth, with a few, sharp striae. 
21,22. P. Striata. {Striated Phasianella.) Elliptical; body very large; spire, short, with four, inflated 
volutions ; apex acute; entire surface with strong, spiral striae; aperture oval; outer lip plain, thin ; inner lip 
reflected on columella. 
23, 24. Solarium Ornatum. {Adorned Solarium.) Discoidal; with seven or eight volutions; apex acute ; 
lower volutions, with obtuse, radiating ribs, with sharp carina bounding the body volution; aperture rhomboidal. 
25. Neritina Fittoni. {Fitton's Neritina.) Convex; spire minute; without volution; body large, with three, 
prominent, transverse carinae ; aperture large. 
26. P. Pusilla. {Slender Phasianella.) Elliptical, smooth ; body large ; spire, with four, flat volutions, apex 
obtuse ; aperture ovate; outer lip thin, even; pillar-lip reflected at base. 
27. Nassa Lineata. {Lineated Nassa.) Ovate; body inflated; whole surface transversely striated; volu¬ 
tions somewhat flattened; aperture longer than spire. 
28. N. Costellata. {Small-ribbed Nassa.) Subulate; spire, with seven ventricose volutions, each with 
varix ; with longitudinal ribs and transverse strife ; aperture circular, with thickened lip. 
29. P. Gigantea. {Gigantic Pleurotomaria.) Conical, with straight sides and volutions overlapping; lip, 
with deep sinus ; band trauversely striated ; whole surface concentrically striated. 
30. L. Pungens. {Pricking Littorina.) Conical, smooth; body large, ventricose; spire short, with five, 
narrow volutions ; apex acute ; aperture orbicular ; outer lip thin, even. 
31 Auricula Inflata. {Inflated Auricula.) Oblong-ovate ; body long; spire short, with four, inflated volu¬ 
tions ; aperture sub-quadrangular below ; outer lip thickened, obtuse on edge, united with inner lip, which has 
two strong plaits ; surface, with many spiral lines of elongated punctures. 
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