236 CALIFORNIA ACADEMY OF SCIENCES. 



Juan de Fuca to the Gulf of California, lie seemed to infer 

 that this dearth of shield reptiles was what might be ex- 

 pected in such a country, at least so I understand him. The 

 list of the Californian Testudinata at the present writing 

 number seven species, five out of the seven are the follow- 

 ing: Aspidonectes Cali/orniana , n. sp.; Cinosternum Sonori- 

 ense Le C; Platythyra flavescens Ag.; Aciinemys marmorata 

 B. & G. ; and Xerobates Agassizi Coopev. There is also cred- 

 ited to California upon good authority, Cinosternum Boiible- 

 dayi Gray; and I have a worn shell of a yery distinct species 

 of Chrysemys taken from the upper waters of the Sacramento 

 near Shasta, and which may be the much abused (7. Orego-^ 

 nensis of Harland. 



Of the Californian region, with its great area and varied 

 features of climate, altitudes, lakes, rivers and water-courses, 

 together with much that is unexplored, if prophesying were 

 allowable, I would say that its present list of Testudinata 

 will be greatly added to in the future. 



