14 



121 Cardium proceruni 



Santa Margarita bay, Baja Cal., to Peru. Santo Domingo. 



122 Lioeardium elatum 



Formerly not rare, below low-water mark, on tbe muddy flats 

 of San Diego bay and False bay, and at Todos Santos bay; Santo 

 Domingo, Baja Cal., and in the Gulf of Cal. 



123 Lioeardium substriatum 



Monterey, Cal., to Santo Domingo, Baja Cal., and to South 

 America? 



124 Chama exogyra 



Bodega bay, Cal., to Santo Domingo, Baja Cal., and the Gulf 

 of Cal. Mazatlan? Abundant on our rocky beeches. 



125 Area Multicostata 



A large edible clam, rarely found at Catalina Island and at 

 San Pedro, Cal., abundant at Santo Domingo, Baja Cal., south to 

 Central America. 



126 Mytilus Calif ornianus 



"This species can easily be distinguished by the conspicuous 

 ribs, which are never wholly absent, particularly on the newest 

 parts of the shell. The beaks of old specimens are apt to be much 

 eroded, but the growing edge is protected by a glossy epidermis. 

 The general color of the shell is purple, though the thicker parts 

 of it are white, and sometimes there are streaks of brown, which 

 harmonize remarkably well with the purple. Occasionally a very 

 large and perfect specimen is polished on a lapidary's wheel, and 

 the result is remarkably pretty. But far more often we see na- 

 ture's method of bringing out the colors. If you find a little 

 beach near a mussel ledge you will notice that the sand contains 

 unnumbered bits of blue and white and brown, all bright and 

 polished and forming the most lovely bed of gaily colored gravel. 

 If you examine the pieces you will find that most of them are 

 nothing but broken mussel shell, and you will admire the bright 

 colors which blend so perfectly. And while speaking of colors, 

 let me ask you to observe the combinations all along the rim of 

 the ocean. What soft tints of olive green in the sea-weeds, en- 

 livened by the brilliant red of a star-fish or the bright emerald of 

 a frill of Ulva! How beautifully they harmonize with the gray 

 of the rocks and the blue of the sea and sky! What fertile sug- 

 gestions for an artist who is seeking new patterns for a fabric 

 or a carpet!" — Josiah Keep. 



Queen Charlotte Island, British Columbia, to Santo Domingo, 

 Baja Cal., abundant at San Diego. The flesh of this mussel is 

 bright orange, and is most excellent when pickled. 



127 Mcdiola capax 



Puget Sound, Washington, to Peru. Abundant in some locali- 

 ties near San Diego, and found at Santo Domingo, Baja Cal.; the 

 shell, denuded of its epidermis, often appears of a brick red color; 

 by some it is considered identical with M. modiolus, of Linnaeus. 



128 Septifer bifurcatus 



Abundant at San Diego, Cal., south to Santo Domingo, Baja 

 Cal. Farallon Islands. — Cooper. 



129 Pinna lanceolata 



Santo Domingo, Baja Cal., in the kitchen middens. 



