^'tsg^!'''] PROCEEDINGS OF TFIE NATIONAL MUSEUM. 449 



280. Fissuridea saturnalis Cpr. 

 Chatham Island, Alhntrosn. 



281. Fissuridea alta C. B. Ad. 

 Bindloe Island, Wimmer. 



282. Fissuridea mus Reeve. 

 Bindloe Island, Wimmer. 



Subclass ISOF»LEURA. 



Order POLYPLACOPHOR A." 

 Superfamily EOCHITON"! A. 



Family ISCHKOCHITONID^. 



OeniiH CHiETOPLEURA Slmttleworth. 



283. Cliaetopleura janeirensis Gray. 

 Galapagos Islands, Wimmer. 



GeniiH CHITON \Ann6. 

 Section RADSIA Gray. 



284. Chiton (Radsia) sulcatus Wood. 



Hoods, Charles, and Indefatigable islands, Alhatrosft ; Hood Island, 

 Wimmer; Charles Island, Tefrel; Galapagos Islands, Carpenter, Na- 

 tional Museunj. 



285. Chiton (Radsia) Goodalli Urod. 



Albemarle, Chatham, and Indefatigable islands, Albatross ; Charles 

 Island, Petrel; Galai)agos Islands, Carpenter, Wimmer, National 

 Museum. 



Genu8 TONICIA Gray. 

 286. Tonicia ? Coquimbensis Frembley. 

 Galapagos Islands, National Museum. 



287. ? Tonicia hirundiformis Shy. 

 Galapagos Islands, Carpenter, Wimmer. 



SuperfainLily OPSIOHI^PONI A. 



Family MOPALIIDiE. 



Genus ACANTHOCHITON Lcacli. 



288. Acanthochiton spinifera Frembley. 



= C. aculeattts Barnes. 



Galapagos Islands, National Museum. 



*The proper classification oftlio C/mVohs herein listed awaits the pnblicationof Mr. 

 Pilsbry's Monograph. 



Proc. N. M. 93 29 



