420 WILLIS NOVA SCOTIAN SHELLS—GANONG. 
E. Forman, late of the Smithsonian Institute, for identifying 
obscure specimens for me. 
It will afford me much pleasure to supply any information 
relative to the habitats, and mode of collecting any of the species 
I have been enabled to secure, so far as my experience and limi- 
ted acquaintance with the fascinating science of Conchology will 
warrant. 
From an examination of the Catalogue it will be seen that the 
Serpula and Vermetes are missing therefrom—though I have a 
number of species on hand, I have as yet been unable, from 
press of other matters, to turn my attention to these beautiful 
and interesting classes. 
PALLIOBRANCHIATA.* 
Rhynchonella psittacea, + Gm. Banks of St. Margaret’s Bay, &c. 
Waldheimia cranium, MULL. Banks of St. Margaret’s Bay, &c. ; 
very rare. 
Terebratulina septentrionalis, CoutH. Halifax Harbor, &c. ; 
common. 
Terebratula Labradorensis. Stimpson Fishery Banks Rare. t 
LAMELIBRANCHIATA. 
Anomia Ephippium, Lin. From the wreck of the frigate “Tri- 
bune,” lost off Herring Cove, about 70 years ago; speci- 
mens procured by a diver; not rare. 
Anomia Aculeata,Gm. Parasitic on lobsters, &c.; common. Vars. 
Squamula et Electrica. 
Ostrea Virginiana, Lister. Wallace, Tracadie, Mabou, 
&e.; abundant. ~ { Perhaps 
Ostrea Borealis, Lam. Tatamagouche, Wc.-; ee syn. 
dant. § 
Lima Sulculus, LeEAcH. Sambro Bank, Sable Island Bank; 
very rare. || 
* These divisions are crossed out by Willis in some of his lists. 
+ Sars, in his splendid Mollusca Regionis Arcticae Norvegiae gives both of these as occuring 
on the north-east coast of America. Did he take Willis’ authority for it? 
{ These words are added to the list in Willis’ handwriting. 
§ Shells of this species, or rather, variety, are said to have been found at Sable Island. 
A. L. Adams, ‘‘ Field and Forest Rambles,” p. 35. 
|| Has not been found elsewhere in American waters. Binney, in his edition of ‘“ Gould's 
Invertebrata of Mass.,” 1870, p. 200, appears to accept the identification of the species as correct 
