THE SEA-EAR. 287 
To the scutibranchiate gasteropods also belong the strangely 
formed Carinariz, which seem to be made up of disjointed 
Hahotis. 
ce. Series of perforations. d. Eye peduncles. e. Tentacles, . Foot. 
parts. The gills (7g) project from under a thin vitreous shell (f), 
which projects from the 
dorsal surface, and has a 
form not unlike that of 
the Argonaut or of a Phry- 
gian cap. The foot (d) is 
not formed for creeping, 
but constitutes a muscular 
vertical paddle or fin, that 
serves them for swimming 
on the back, and is fur- 
nished with a sucking disk (c), with which they are enabled to 
attach themselves to floating objects. 
Carinaria. 
