182 SHELLS OF LOWER CALIFORNIA— STEARNS. 



Collected by Dr. Edward Palmer. An exceedingly pretty and char- 

 acteristic species, allied in a general way to Reeve's tegula and Powis's 

 complanata. 



Family C <> l v m n E l i. i i) JK. 



('0LITMBP:LLA 1I.T:MAST0MA, S o w e rb y. 



Not common: beacli. San Lucas Cove. 



COLUMBELLA FUSCATA, Sower by. 



Common, living. Tres Marias; Loreto. 



COLUMBELLA MAJOR, Sower by. 



Common, living. Port Escondido; Tres Marias and elsewhere. 

 Fisher's shells from the first locality are of the small variety. 



(;OLUMBELLA ( ANACHLS) CORONATA, S o w e r b y 



A few examples. Mulege Bay; Tres Marias. 



Compared with related forms this species is apparently rather rare, 

 not only at the above place, but throughout the Culf region. 



COLUMBELLA (ANACHIS) GASKOINII, C ai]) en ter. 

 A. twniata, Philippi. 



Examples (No. 48256, U. S. N. M.). Mazatlan, Henry Edwards, Janu- 

 uary, 1873. A rare and very pretty species. 



COLUMBELLA (ANACHIS?) PARVA, Sowerby. 



Two specimens. Mazatlan, Hy. Edwards (No. 48270, IT. S. N. M.). 



COLUMBELLA (ANACHIS) LYRATA, Sowerby. 



Examples, beach. Loreto. 



COLUMBELLA (ANACHIS) NIGRICANS, Sowerby. 



Examples. Loreto. 



COLUMBELLA (ANACHIS) SERRATA, Carp (Miter. 



Beach specimens. Loreto. 



COLUMBELLA (NITIDELLA) CRIBRARIA, L a in a r c k . 



Common. 



La Paz ; San Lucas Cove ; Los Animas Bay, Angeles Island ; Tres 

 Marias (Nos. 48333, 48334, U. S. N. M.); Boca de los Piedras. 



Two well-marked varieties, one of a dark chocolate-red, with light 

 spots; the other sienna yellow, with light spots; the latter appear to 

 be more truncated than the first ; botli of them are on an average rather 

 larger than the usual run of Nicaraguau examples. Occurs also at 



