GASTEROPODA. 945 
Synonym, Chenopus, Philippi. 
Type, A. pes-pelecani. Pl. LY., Fig. 7, and Fig. 99. 
Shell with an elongated spire ; whorls numerous, tuberculated; 
aperture narrow, with a short canal in front; outer lip of the 
adult expanded and lobed o1 digitated; operculum pointed, 
lamellar. 
Animal with a short broad muzzle; tentacles cylindrical, 
bearing the eyes on prominences near their bases, outside; 
foot short, angular in front; branchial plume single, long; 
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27 
Fig. 99.* 
lingual ribbon linear; teeth single, hooked, denticulated ; 
uncini 3, the first transverse, 2 and 3 claw-shaped (Fig. 100). 
The dentition of Aporrhais is most like Strombus and Carinaria ; 
and quite unlike the Cerithiade with which it has been placed, 
Fig. 100. Aporrhais pes-pelecani. (Warington.) 
in accordance with the views of Professor Forbes. The animal 
is carniyorous. 
Distribution, 4 species. Labrador, Norway, Britain, Mediter- 
ranear, West Africa. Range 100 fathoms. 
Fossil; see Pteroceras and Rostellaria; above 200 species, 
ranging from the lias to the chalk, probably belong to this 
genus, or to genera not yet constituted. 
* Fig. 99. Aporrhats pes-pelcam, L., from a drawing by Joshua Alder, Esq., in the 
* British Mollusca.” 
