KIO THE NAUTILUS. 



A NEW SPECIES OF CAPULUS FROM CALIFORNIA. 



Ill W. II. DALL. 



Mrs. T. S. Oldroyd, of Los Angeles, Cal., recently sent me a, 

 species of Capulus which appears to be new, and which adds to the 

 fauna of California a genus not hitherto known to belong to it. 



Capulus califomicus u. sp. 



.Shell only moderately elevated, oval or more or less Conformable 

 with the object upon which it roosts, the apex small, somewhat later- 

 ally compressed, incurved almost symmetrically, nearly concealing 

 the smooth, one-whorled nucleus, situated near the posterior margin; 

 surface nearly smooth, somewhat irregular, mesially with small faint 

 radial not very close-set ridges, covered with an imbricated dense 

 soft glistening periostracum which projects beyond the margins ; in- 

 terior polished, white, with faint rosy rays extending from the apex 

 to the anterior margin ; Alt. 10, Ion. before the apex 30, behind it 

 5.5, total basal length 36.5, average width 2!) mm. 



This fine shell was found on the flat valve of Pecten diegcnsis 

 Dall ( floridus Hinds non Gmelin), in 20 to 25 fathoms off San 

 Pedro, California. 



Carpenter reported some fragments of Capulus from Mazatlan, but 

 these were not really sufficient lo establish the presence of the genus. 

 The present species is related to C. colyptra Marty n. of Japan, and 

 C hungaricus of the northeast Atlantic. It is less elevated than 

 either, the sculpture is much fainter than in C, hungaricus and the 

 apex is less conspicuous, more posterior and less coiled. 



I have several times received a small shell collected among kelp 

 roots and variously mottled or tinted with purple or reddish-brown 

 and yellow. A very young specimen of this kind was described by 

 Carpenter under the name of Psephis tellimyalis. It is not a Psephls 

 but has the characters of Petricola. I have suspected for a long time 

 it was the young of P. carditoides, but have not vet seen enough 

 material to make this certain, and therefore suggest that Pacific 

 coast students should endeavor to solve the problem. 





MOLLUSCA ASSOCIATED WITH MASTODON REMAINS. 



I have received from Dr. Arthur Mead Edwards, the well-known 

 mieroscopist of Newark, N. .1., certain Molluscan forms for deter- 



