224 
LIMK^ADJS. 
Velutina otis. Flemings B. A. 326. — Helix otis. Turton^ 
Conch. Diet. 70.— Galericulum otis, and G. ovulum. Brown., 
111. Conch . — Otina otis. Gray., B. Z. Soc. 1848; Clark^ 
Ann. and Mag. N. H. vi. 24. ; Forbes and Hanley., B. M. iii. 
321. t. 99. f. 2, 3.; Pfeiffer., Moc. Aur, 12. 
Rocks on sea-coast. These animals are generally- 
found at the roots of Lichina pygmcca on the rocks, 
often in company with Lasea rubra. When they are 
placed in water, they generally make their way out 
and fix themselves to some dry spot, as is the case 
with many Littorince^ which almost always con- 
stantly live in free air.” — Clark, 
%%%% 'FcYifacles elongate^ linear ; jaw single^ angular 
(fig. 54.) ; body and shell ovate ^ spiral ^ 
sinistral, (Physina.) 
6. Physa. (Bubble Shell.) 
The body spiral, on the middle of an elongate foot ; 
the mantle large, lobed 
on the edge, and ex- 
panded over the ovate, 
thin, transparent, spiral, 
sinistral shell, which has 
an oblong mouth, with 
the inner lip expanded 
and spread over the body whorl, covering it 
and the smooth pillar ; the tentacles have an 
auricle at the base. 
The tongue has a multitude of teeth of a simi- 
lar form, though different from any that I have seen 
in other genera; but the delicacy of the tongue 
Fig. 54. 
Physa fontinalis. 
