200 B GEOLOGICAL SURVEY OP CANADA. 



Leda ccelata, Hinds. Houston-Stewart Channel, in from 15 to 20 

 fathoms, a single but characteristic left valve. The most north- 

 erly locality previously known for this species was the neigh- 

 bourhood of San Francisco. 



Leda minuta, Miiller. Channel opposite Seal's Head Island, iu 70 

 fathoms. Several specimens, apparently, of a very large, tumid 

 form of this species. A number of examples of the variety candata 

 were dredged off Metla-Katla, in 20 fathoms of water. 



Yoldia lanceolata, J. Sowerby. Virago Sound, in 8 to 15 fathoms, 

 several living, but small; also one valve, in 20 fathoms, off Metla- 

 Katla, 



Bryophila setosa, Carpenter. Yirago Sound, in 8 to 15 fathoms, four 

 fine living specimens. Hitherto known only from Cape St. Lucas, 

 and between San Diego and San Pedro, California, 



Pecten hastatus, Sowerby. With the preceding, also Houston-Stewart 

 Channel, in from 15 to 20 fathoms; a single small specimen from 

 each of these localities. 



LL'innites giganteus, Gray. From several localities, common. 



Placunanomia macroschisma, Deshayes. Yirago Sound, in 8 to 15 

 fathoms, and elsewhere, common. 



Gasteropoda. 



Tornatina eximia, Baird. Yirago Sound, in 8 to 15 fathoms, seven 

 specimens; Dixon Entrance, in 111 fathoms, two or three dead 

 shells ; Dolomite Narrows, one dead shell. 



Cylichna alba, Brown. Dixon Entrance, in 111 fathoms, two specimens. 



Siphonaria Thersites, Carpenter, var. One living specimen. 



Dentalium Indianorum, Carpenter. Yirago Sound, in 8 to 15 fathoms, 

 one dead shell. 



Mopalia ciliata, Sowerby. A common littoral species, of which two 

 examples of the typical form were collected, and three of the 

 variety, or subspecies, JBindsii. 



Mopalia Wossnessenskyi, Micldendorf. Two examples from low-water 

 mark. 



Cryptochiton Stelleri, Middendorf. Beach at Skincuttle Inlet, also rocks 

 at low-water in Houston-Stewart Channel. 



Katherina tunicata, Wood. Common at several places, living on rocks 

 at or near low-water mark. 



