176 THE BERMUDA ISLANDS. 



Patella notata, Lam. 



Patella confusa. 

 W. Indies. 



Bulla striata, Brug. 



Florida, W. Indies, Africa, etc. 



Bullina (Bulla) nitidula, Dillw. 

 Hydatina (Bulla) physis, L. 



These two West Ridian species are here enumerated on the 

 authority of Jones. 



TJtriculus Candei, D'Orb. 



Florida, W. Indies. 



Umbrella (Operculatum) Bermudensis, Morch. 



On the identification of Morch. 



Siphonaria picta, Sow. 



Panama, Mazatlan. 



* Siphonaria alternata, Say. 



Florida. 



Dentalium semistriatum, Guild. 



W. Indies. 



Cadulus quadridentatus, Dall. 



Florida coast. 



Chiton squamosus, L. 

 Chiton marmoratus, Gmel. 

 Ischnochiton purpurascens, Adams. 

 Tonicia Schrammi, Shuttl. 

 Aplysia aeqnorea, n. sp. 

 Chromodoris zebra, n. sp. 



LAMELLIBRANCHIATA. 

 Teredo, sp. ? 



Found in driftwood ; species undetermined. 



