GASTEROPODA. 307 
CatmA, Alder and Hancock. 
Animal sharply angular in front; foot broad; papillis simple 
and supported on cylindrical bases; tentacles small. 
Distribution, 1 species. North Sea. 
FAVORINUS, Griibe. 
Animal with slender cephalic tentacles knobbed at the 
extremity; oral tentacles 2 pair; papille arranged in seyeral 
oblique rows. 
Distribution, 1 species. North Sea. 
GALVINA, Alder and Hancock. 
Animal with papille in transverse rows; oral tentacles short 
-and tapering; rounded in front. 
Distribution, 2 species. North Sea. 
CuTHONIA, Alder and Hancock. 
Animal with head naked and expanded ; papille clayate and 
arranged in thick-set rows. 
Distribution, 1 species. North Sea. 
Finurus, Dekker. 
Foot stunted ; body slender; tentacles 2; mouth on a loose 
fringe of skin with 2 small oral feelers; papillze in 2 long rows 
down the back. 1 species. 
Procronotus, A. and H. 
Type, P. mucroniferus, Pl. XIII., Fig. 16. Dublin, shallow 
water. 
Synonyms, Venilia. A. and H. Zephrina, Quatref. 
Animal oblong, depressed, pointed behind; dorsal tentacles 
2, linear, simple, with eyes at their base, behind; oral tentacles 
short; head covered by a, small. semi-lunar veil; mouth with 
horny jaws; papillze on ridges down the sides of the back and 
round the head in front; vent dorsal. 
Distribution, 3 species. North Atlantic. 
AnTIoPA, A. and H. 
Type, A. splendida, A. and H. 
Synonym, Janus, Verany. 
Animal oyate-oblong, pointed behind ; dorsal tentacles lamol- 
lated, united at the base by an arched crest; head with a small 
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