MARINE MOLLUSCS. 251 
CATALOGUE OF THE MARINE MOLLUSCOUS ANIMALS 
USUALLY TERMED SHELL=FISH, &C. RECOCNIZED BY THE AUTHOR 
OR OTHERS AS OCCURRING ON THE SHORES 
OF SOUTH DEVON. 
Those species marked with an Asterisk have been found as 
yet only in Devon, or at most in Devon and Cornwall. The 
nomenclature from Fleming. 
——$$>=—_+_— 
BRANCHIFERA. 
NUDIBRANCHIA. 
Patella vulgatax—Common Limpet. Abundant. 
Patella intortaa—Devon. (Montagu.) 
Patella pellucida.—Not uncommon at the roots 
of fuci; thrown up in great numbers on sandy 
beaches. 
Patella levis.—On stalks of fuci. Not uncommon. 
Patella virginea. On fuci. Thrown up in 
numbers on sandy beaches. 
Chiton fascicularis. Not uncommon under 
stones at low water, but found also in deep water. 
Chiton ruber.—In deep water, Plymouth sound. 
Chiton marginatus.—Very common under stones. 
Chiton cinereus.—Not uncommon on stones. 
Chiton levis.—— Uncommon. 
Aplysia depilans 
Aplysia punctata 
* Aplysia viridis 
* Pleurobranchus plumula.—Devon. (Montagu.) 
Pleurobranchus membranaceus. — (Turton and 
Kingston.) 
“Sea slugs.” Devon. 
(Montagu.) 
Gren? 
