376 M()l,M'SKS OF THE OALAPAGOS — STKAKNS. 



Stihramily Tai'KSIN.k. 

 (lemia TAPES iMfi^trlc. 

 20. Tapes grata Say. 



I'Mvc vahcs; beach (Miis. No. 101*157). 



Iii(l('l';iti,i:al)lt' Island. 



This .spiH'ics, which iiicliuics in its synonoiuy \'(Uiis diticors Sby., ex- 

 tends IVoin Lower (^Jilitbrnia, southerly to the (JulloCC'alitbniia, Central 

 America and Panama to I'icuador; it rnns pretty dose to the west 

 ►South American 7'. <iiitiqit<t Kin^, in certain features. 



Family THLLl N ID.K. 

 (ifmus Lutricola I'.lniiivillc. 



21. Lutricola excavata Shy. 



f Lutritohi altti Coiir. 

 One ri^lit valve, dead; hcaeli. 

 Indelalipible Island. 



Dr. .lones eoUeeted this (one valve) at Chatham Island, also at Payta, 

 on the main land. 



Class GASTROPCUDA. 

 Family lU'LlilD.K. 

 , (It'iiiis BULLA LiiuH'. 



22. Bulla punctulata A. Ad. 



Abundant on the beaches. 



Hood and indclatii^ablc islands. 



Dr. Jones Ibund it common at Chatham Island as well as at various 

 jdaces on the main land of South Auu'rii'a. />. aspcrsK A. Ad. is prob- 

 ably a synonym; it is very close to />. adanisi .^lenke of the Culf of 

 California. 



Family lUTLlMULl D.K. 



(irmi.s BULIMULUS l..:i(h. 



Subufiiiis NJESIOTUS All.ois. 



23. Buliinulus nux, I'rotl.. lS:iL'. 



The typical form was (lescribe<l by IJroderip in the Pro. Zoiil. Soc. 

 London, p. lL*5,and lijiured by Sowcrby in his Concholo.uical Illustrations 

 J>7 and .'>7*; the examples betore mc are froni the sanu> island as IJrod- 

 erip's type. Keeve's ligure in the Conch. Iconica, loO, is misleading: in 

 this, that while it faithfully represents a not unconunon facies, it is not 



