or 
oe 
PHILINIDA. ae 
PHANEROPTHALMUS, A. Ad. 
Syn.—Xanthonella, Gray. 
Distr.—P. luteus, Quoy (1xxxvii, 18,19). , 
Shell oval, convex, pointed behind, columella-margin with a 
curved process. Animal long, cylindrical, head with short ten- 
tacular lobes, eyes in middle of disk, lateral lobes enveloping. 
CrYPTOPHTHALMUS, Ehrenberg. 
Distr.—C. olivaceus, Ehr, (lxxxvii, 20). Red Sea. 
Shell scarcely convolute, fragile, oval, convex, without spire 
or columella. 
Animal semicylindrical, head with short tentacular lobes, eyes 
small, concealed under the lateral margins of the head, mantle 
and lateral lobes enveloping the shell. 
PHILinopsis, Pease, 1860. 
Distr.—2 sp. Sandwich Isles. P. speciosa, Pease. 
Shell white, fragile, pellucid, with a curved callous apex. 
Head-disk large, oblong-oval or triangular, not extending in 
advance of the foot; body truncated behind, and the truncation 
surrounded by an undulated or crenated crest; eyes not visible ; 
mouth proboscidiform between cephalic disk and foot, with or 
without one pair of tentacles on sides of the mouth; foot large, 
rounded and reflected at the sides; branchial plume near the 
posterior end of the body, and curving around between the 
truncated end of the foot. 
VOLVATELLA, Pease. 
Distr.— V. fragilis, Pease. Sandwich Islands. 
Shell convolute, subpyriform ; aperture wide anteriorly, con- 
tracted posteriorly and produced, forming a circular aperture. 
Animal. Mantle concealed; cephalic disk quadrate; tentac- 
ular lobes produced from the corners ; anal aperture posterior ; 
foot small and triangular. 
Linteria, A. Adams. 
Syn.—Smaragdinella, A. Ad. Glauconella, Gray. 
Eaxample.—L. viridis, Rang (1xxxvii, 21). 
Shell oval, depressed, slightly spiral, greenish; aperture very 
large, canaliculated behind ; inner lip with a spiral spoon-shaped 
process. 
Animal partially investing the shell; eyes sessile on the middle 
of the frontal disk; mantle included within the shell, ending 
posteriorly in a thickened lobe; foot with the side-lobes free, not 
united to the head, enlarged in the form of wings which unite 
behind and eover a portion of the shell, 
Amphibious, living on moist rocks within reach of the spray, 
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