THE NAUTILUS. 93 



color band is well marked in all my specimens (six). Found 

 only at 5. 



Odostomia {Chrysallida) sp? Two specimens at 5. 



Odostomia impressa (Say). Several specimens at 5. 



Odostomia trifida (Totten) . Abundant at 5, found also at 3. 



Odostomia hisuturalis Say. At 3 and 5. 



Epitoneum multistriatum (Say). Three specimens at 5. 



Polinices duplicata (Say). Generally distributed, fin« 

 specimens at 4. 



Polinices heros (Say). Generally distributed, fine speci- 

 mens at 4. 



Polinices triseriata (Say). Occasional. 



Crepidula fornicata (Linnaeus). Generally distributed. 



Crepidula glauca Say. Found only at 2. 



Crepidula glauca convexa Say. Generally but thinly dis- 

 tributed. 



Crepidula plana Say. Generally distributed. 



Paludestrina minuta (Totten). Occasional at 5. 



Paludestrina laevis (De Kay). Common at 5, a few at 3. 



Adeorbis supranitidu^ lirata (Verrill). Several specimens 

 at 5, all being of this subspecies. 



Litorina littorea (Linnaeus) . At 2, 3 and 4. 



Litorina oJjtusata palUata (Say). Only found at 5. 



Litorina rudis (Donovan). Abundant at 2. 



Lacuna vincta (fusca) Gould. Found at 2, 3 & 5. 



Triphoris perversa nigrocincta (C. B. Adams). Several 

 specimens at 5. 



Certhiopsis greenii (C. B. Adams). Several specimens at 5. 



Bittium alternatum (Say). Fine specimens at 5. 



Eupleura caudata (Say). Generally distributed. 



Urosalpinx cinerea (Say). Generally distributed. 



Columbella avara similis Ravenel. A specimen at 2. 



Columhella lunata (Say). Generally distributed. 



Alectrion ohsoleta (Say). Generally distributed. 



Alectrion trivittata (Say). Generally distributed. 



Busycon canaliculata (Linnaeus). Generally distributed, 



Actaeon punctostriatus (C. B. Adams). Several speci- 

 mens at 5. 



