368 APPENDIX. 



CARDIID^l. 



Cardium corbis. (Mart.) Esquimalt Harbour, dug from sand between 

 tide marks ; grows to a great size, and is an important article 

 of Indian diet. 



Leda fossa. (Baird : Nov. Sp.) 



Testa elongata, ovali, antice multo breviore, rotun- 

 data, postice elongata, in rostrum subacutum producta, 

 transversim undulato-costata, in latere antico fossa trans- 

 versa notata ; utnbonibus promiuulis, margins ventrali 

 rotundato ; intus Isevi; epidermide tenui, lutescente, 

 nitida induta. 



This little shell is of an elongate form, much reduced 

 posteriorly ; and near the anterior extremity it is 

 marked by a longitudinal depression or pit, upon which 

 the ribs are nearly obsolete. Long, rather more than 

 ^ inch ; lat rather less than ^ inch. Hab. Esquimalt 

 Harbour, Vancouver Island ; dredged in from 10 to 15 

 fathoms water, by Dr. Lyall, of H.M.S. 'Plumper.' 

 (Brit Mus.) 



PHOLADHLE. 



Teredo fimbriata. (Jeff.) Nai-ni-mo Harbour; very destructive to 

 wood piles. Some pieces of wood in British Museum are 

 honeycombed, and only under water 4 months. 



SAXICAVID.E. 



Saxicava rugosa. (Lamak.) Esquimalt Harbour, between tide marks. 



Crassatella Esquimalti. (Baird : Nov. Sp.) 



Testa parva, cordato-trigona, crassiuscula, olivacea, 

 transversim undato-plicata, antice producto-rotuudata, 



