112 
MOLLUSCOUS ANIMALS. 
A 
13 
POLLIA IOSTOMA. 
Shell ovate, solid, dark brown, closely spirally straited, slightly longitudinally plaited, covered with a 
thin hairy periostracum ; spire short conical ; last whorl sub-angular, and nodulose behind. Mouth ovate, 
large, black ; throat purple, grooved ; outer lip crenulated ; inner lip rather expanded, and strongly veined. 
Axis 1 § inch. 
Inhab. Pacific Ocean. 
POLLIA VARIEGATA. 
Shell ovate, fusiform, solid, green, varied with short black cross lines, finely and closely spirally 
ribbed, covered with a thin olive periostracum ; spire about two-thirds the length of the mouth, acute. 
Mouth ovate, white; throat grooved behind; outer lip crenulated, especially in front; inner lip rather 
spread, veined, with a strong rib behind- Axis If inch. 
POL LI A HiEMASTOMA. 
Shell ovate, fusiform, rather thin, dark brown, pale varied ; finely, closely, spirally striated, slightly 
longitudinally plaited, with a few distinct rather tubercular spiral ridges ; spire about two-thirds the length 
of the mouth. Mouth blood-red ; throat white, smooth ; outer lip crenulated, especially in front ; inner lip 
veined, with white tubercles, and a distinct posterior plait. Axis li inch. 
Inhab. 
Var. mouth white. 
These three species differ from the others in the inner lip being veined the whole of its extent ; there is a 
distinct canal at the hinder end of the mouth, caused by a spiral ridge on the inner lip and the contraction of 
the hinder part of the outer one. 
Besides the species here described, the following species should be referred to this genus : — 
Pollia melanostoma. Bucc.hnelanostoma. Sow. Gen. f. 5. — Wood. Sup. t.A.f. 3. 
Pollia Tranquebarica. Bucc. Tranquebaricum. Sow. Gen. f. 6. — Martini iv. 
/. 114-6, 47. 
Pollia undosa. Triton undosuin. Lam. 189. Bucc. undosum. List. t. 938. 
f. 33. Bucc. affine. Wood. Cat. f. 97, 98. 
Pollia pulchella. Murex pulchellus. Lam. 176. 
Pollia Camaelii. Bucc. Cannelii. Payrad. Cors. t. 8. f. 7 — 9. 
Pollia cingulata. Murex cingulatus. Lam. 175. 
Pollia plumata. Fusus articulates. Lam. 132. Purpura fasciolaris. Lam. 249. 
( fide Cai.) Bucc. plumatum. Gmel. — Wood. Cat. f. 88. 
Pollia ignea. Bucc. igneum. Gmel. — Wood. Cat. f. 87. 
Pollia maculosa. Bucc. maculosum. Lam. Erie. t. 400. f. 7. — List. t. 96. 4 . f. 49. 
Poli. t. 4, 46, f. 44. The animal, with the eyes at the base of the tentacles. 
Mediterranean. 
Pollia Mauritii. Bucc. Sancti Mauritii. diem . — Wood. Cat. t.24. f. 125. 
Pollia distorta. Bucc. distortum. Gray. — Wood. Cat • Sup. t. 4 . f. 7. Columbella 
triumphalis. Duclos MSS. 
And about six or eight undescribed species in the author’s cabinet. 
ENGINA. n. y. 
Shell spiral, mouth ovate, linear, variced, concave, with abroad oblique plait in front ; inner lip expanded, 
veined ; outer lid thick internally, and toothed, with a groove behind. 
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