32 



333 Chioaera leonina 



Tryon gives this name as Chiorhaea according to Yates; ap- 

 pears in Cooper's list as Chioraera; Yates spells the name as 

 Chioraea leontina, and says Gould's original description and 

 Cooper's agree. Yates also cites J. W. Fewkes, Essex Inst. bull. 

 xxi, 1889. One specimen was dredged in the Santa Barbara chan- 

 nel at 20 fathoms by Dr. Cooper. 



Animal wholly translucent, pale yellow, the variations marked 

 only by a darker shade; form of head nearly conicle, the apex 

 anterior, forming an angular roof above the anal open ng; bran- 

 chia processes 5 on each side, larger than represented in Gould's 

 figure (Mollusks and shells, U. S. Expl. Exped.), imbricated and 

 decumbent; length 2.75, height 1 inch. 



Type locality: Vancouver Island, British Columbia. 

 o 



334 Yates, Lorenzo Gordin 



The mollusca of Santa Barbara county, Cal. Santa Barbara 

 society of natural history bulletin 1:37-45. 



New shells from the Santa Barbara channel. Same, pages 4 6- 

 48, t 1 and 2. 



Dr. Yates notes the following forms (Nos. 335-493), besides 

 others previously listed herein. 



335 Physa d'orbigniana Lea. 



Santa Rosa Island, living and fossil. 



33C Chiton (Mopalia) muscosa 



Shumagin Islands; Baulines bay, Cal. (R. E. C. Stearns); San 

 Diego, and Baja Cal. Santa Rosa Islands (Yates). 

 Synonym of Mopalia ciliata. 



337 Chiton (Acantopleura) scabra 



Synonym of Nuttallina scabra. 

 Vancouver Island to Todos Santos bay, Baja Cal. 



338 Chiton (Ischnoehiton) magdalensis 



Synonym of Stenoradsia magdalenensis. 



Santa Rosa Island, common (Yates), Monterey, Cal., to Mag- 

 dalena Island, Baja Cal. 



339 Chiton (Ischnoehiton) eooneri 



Balenas bay, to Santa Cruz, Cal. Santa Roa Island (Ya^es). 



340 Nacella incessa 



Synonym of Acmaea incessa. 



341 Nacella depicta 



Synonym of Acmaea depicta. 



342 Nacella naleacea 



Synonym of Acmaea paleacea. 



343 Fissurella (Glyphis) aspera 

 Synonym of Fissuridea aspera. 



344 Trochiscus norrisii 



Synonym of Norrisia norrisii. 



Monterey bay (Berry); Santa Barbara and Tslands (Yates); 

 and abundant on kelp on the coast at San Diego, and south. 



