CLASS IX. ORDERII. 113 
AscipA, body fixed, roundish and aparently is- 
suing from a sheath. In sea. 
Daeysa, body loose, nayant, angular, tubular 
and open at each extremity. In sea. 
PrerorracHea, bedy detached, gelatinous, 
with a moveable fin at the abdomen or tail 3 eyes 
two, placed within the head. In sea. 
Derris, body cylindric, composed of articula- 
tions ; wouth terminal; feelers two. in sea. 
Oncurpium, body oblong, creeping, flat beneath; 
mouth placed before ; feelers two, situate above 
the mouth; armes two, at the sides of the head ; 
vent behind, and placed beneath. On leaves. 
Lozarta, body above convex, beneath flat, lo- 
bate. Insea.. 
ORDER 2. MULTIVALVA. 
Soft animals, having shells with more than two 
valves. 
Cuiton, (monoloba,) animals inhabiting the 
shell, adoris; shell consisting of several segments 
or transverse incumbent valves, disposed in a lon- 
gitudinal series down the back. 
Leras, (acorn-shell, barnacle,) animal a tri- ’ 
ton; shell affixed at the base and consisting of 
many unequal erect valves. Formerly called the 
barnacle goose-egg. ; 
Puotas, (piddock,) animal an ascidia 3; prin- 
cipal shell bivalve divaricate, with several lesser 
differently shaped accessary ones at the hinge ; 
hinges recurved, united by a cartilage; in the in- 
side beneath the hinge is an incurved tooth. 
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