NO. 1237. 



SYNOPSIS OF THE LUCINACEA—DALL. 813 



PHACOIDES (LUCINOMA) ANNULATUS Reeve, 1850. 



Sitka, Alaska, and ^^outh to San Pedro, California, in 8 to 135 



fathoms. 



This is the Lmina. horcalk of Cooper, Carpenter, and Gabb, Imt 

 notof Linnieus; Uidna filosa J)2l\, 1870, notStimpson, 1851; Liwma 

 acutilineata of Gabb and other Californian authors, but not of Con- 

 rad, 1819; acutilirata "Conrad" of Cooper, 1861, in Carpenter, mean- 

 ing- ncntni/neoia. Reeve's figure of his cimmlata, doubtfully referi-ed 

 to California, so exactly represents a young specimen of this species 

 which has bleached or lost its yellowish periostracum, that I have little 

 hesitation in referring it to our shell. 



PHACOIDES (LUCINOMA) iEQUIZONATUS Stearns, 1890. 



(Plate XLI, tigs. 2, 3.) 



Santa Barbara channel, in 276 fathoms; a very distinct subquadrate 

 species. 



PHACOIDES (LUCINOMA) LAMELLATUS E. A. Smith, 1881. 



West coast of Patagonia, in K) to 369 fathoms, also in St. Andrews 



Bay. 



A well marked species from the southern extreme of South America, 



originally described as a Diplodonta. 



PHACOIDES (EPILUCINA) CALIFORNICUS Conrad, 1837. 



Crescent City, California, south to San Diego, in 3 to 15 fathoms; 

 Acapulco ''i 



This is the Luclna callfornlca of Conrad, and the young were 

 named Z. ,irtein!(I!s by Carpenter in 1856. A species luiique in its 

 characters among recent shells, but with an analogue in the Tertiaries 

 of the southeastern States. 



PHACOIDES (PARVILUCINA) TENUISCULPTUS Carpenter, 1865. 



Nunivak Island, Bering Sea. and southward to Catalina Island, Cali- 

 fornia, in 8 to 135 fathoms. 



A species of which the metropolis is in the cold waters of- the north- 

 ern coast. 



PHACOIDES (PARVILUCINA) APPROXIMATUS Dall, 1901. 



Catalina Island, California, and south to Panama, in 5 to 10 fathoms. 



Closely related to the last species, but smaller, more delicate, with- 

 out the anterior right cardinal tooth which is developed in the northern 

 shell, and most abundant in the Gulf of California. 



