40 Bulletin Santa Barbara Society of Natural History. Vol. I. 



Macoma nasuta, Conr., Santa Rosa Island and M. C. 

 " inquinata, hesh., (Southern limit.) 



" inconspicua, Br. and Shy., (Southern limit) on kelp roots. 

 Mera modesta, Cpr., (Newcomb. ) 

 Tellina Bodegensis, Hds., S. R. Is. and S. B. 



" bimaculata, Linn., on Anacapa Is., about 4 miles distant from S. C. Is., 

 (Northern limit.) 

 Cooperella scintilkeformis, Cpr., (Geog. Cat.) 

 Lutricola alta, Conr., S. R. and M. C. (Northern limit.) 

 Semele decisa, Conr., More's Landing " " 



" rupium, Sby., (Newcomb.) 

 Cumingia californica, Conr., common in roots of kelp. 

 Donax californicus, Conr., M. coast. 



" flexuosus, Old., (Geog. Cat.) 

 Standella planulata, Conr., S. R. (Northern limit.) 



" falcata, Old,., dredged in Channel (Southern limit.) 

 Amiantis (Callista) callosa, Conr., rare. 



Tivela crasatelloides, Conr., (the "Big Clam") S. R. and M. C. 

 Psephis tantilla, Old., S. R. and elsewhere. 



Lordi, Baird f 

 Meretrix toreuma, Old., (Geog. Cat.) northern limit. 

 Venus (Chione) simillima, Sby., S. R. Is. and M. C. 



" succincta, Vol., " (northern limit.) 



" Fordii, L. O. Yates, (n. sp.), one live specimen dredged in Channel. 

 Tapes tenerrima, Cpr., More's Landing. 



" staminea, Conr., S. R. and M. C, common. 



" " var. di versa " " " 



" " " orbella, Cpr,, in cavities of rocks. 



Saxidomus gracilis, Old., S. R. Is. and M. C. 



" Nuttalli, Conr., " " " 



Rupellaria lamellifera, Conr., islands and M. C. 

 Petricola carditoides, Conr., S. R. and M. C. 

 Chama exogyra, Conr., " " " 



" pellucida, Sby., " " " 



" spinosa, Sby., " " " 



Cardium corbis, Mart., " " " (Southern limit.) 



" quadragenarium, Conr., " " " 



" blandum. Old., " " " 



Liocardium elatum, Sby., " (Northern limit.) 

 " substriatum, Conr., M. C. 



var. major, (var. nov.) M. L., a much larger and more handsome 

 shell than the type. 

 Venericardia borealis, Conr., var. ventricosa, Old., (Geog. Cat.) 

 Lazaria subquadrata, Cpr., S. R. Isl. and S. B. 

 Lucina californica, Conr. " " " 



Diplodonta orbella, Old., S. R., S. B. in holes in rocks. 



" " var. " " " " 



Kellia Laperousii, IJe»h., " " " " 



" suborbicularis, Mont , S. R. Island. 

 Lasea rubra, Mont., S. B. at Castle Rock in byssus of Septifer bifurcatus. 

 Mytilus californianus, Conr., common. 



" edulis, Linn-, less " 



" (septifer?) bifurcatus, Stearns. 

 Septifer bifurcatus, Rve., islands and M. C. 

 Modiola capax, Conr., (Geog. Cat.) Northern limit. 



" modiolus, Linn., S. B. Island (Southern limit.) 



" recta, Conr., (Newcomb.) 

 Adula falcata, Gld., S. R. and M. C. 



" stylina, Cpr., M. C, (Newcomb.) 

 Lithophagus plumula, Hard., S. R. and M. C. 



