252 
MARINE MOLLUSCS. 
Bulla lignaria.—Not uncommon. Common at 
Falmouth. (J. C. B.) 
Bulla umbilicata.—(Turton and Kingston.) 
Bulla akera.—Uncommon. 
Bulla hydatis.—(Turton and Kingston.) 
*BullaCranchiif—PlymouthSound. (Mr.Prideaux) 
Bulla punctata } 
Bulla truncata >■ Turton and Kingston. 
Bulla alba J 
Bulla cylindracea.—Sandy bays, not common. 
Bulla aperta.—Not common. 
Bulla obtusa.—Common. 
Doris argo 
Doris verrucosa 
* Doris marginata 
Doris nodosa 
* Doris quadricornisj 
* Doris flava 
* Doris pennigera 
* Doris maculata 
* Doris pinnatifida 
* Doris bifida 
* Doris longicornis 
* Doris caerulea 
* Doris pedata 
Bulla ampulla _Falmouth (Montagu) 
Coast of Devon (Mon¬ 
tagu) and others. 
PECTINIBRANCHIA. 
Turbo littoreus_ Periwinkle. Abundant. I have 
found the “ Sea cup ” said by Ellis to be the proba¬ 
ble nidus of the young. 
Turbo petrseus.—Very common on the rocks, and 
often beyond the reach of the tide. 
Turbo rudis.—Very common. 
f Named after Cranch who so successfully examined the pro¬ 
ductions of our coast, living as I am informed under a boat at 
Bo vis and. 
