forms in this eonntry, I wipli to offer- the tliariks tlue niv friends 

 Mr. Edmund Heller and Mr. Dane Coolidge, both of whom kindly 

 placed their collections— made during the summer of 1897, in South- 

 ern California— in my hands. Lastly, I wish to thank my friend 

 Mr. Alfred tt. Maddren for suggestions relating to this paper. 



ORDER I. TESTUDINES. 



FAMILY TESTIDUMD.E. 



1. Clemmys marmorn.ta (BAIRD & GIRARD). Three spec- 

 imens were taken by Mr. Heller in the Santa Ana Kiver, at River- 

 side, Cal., during Augu.st, 1897. Mr. Rntter took two (3780, 3781) in 

 Marin county, Oal., while Dr. C. H. Gilbert and Mr. Geo. B. Culver 

 collected one [2782] on the Shasta River, near .Montague, Cal. 



2. Gopherns agassizii (COOPKR). Three of these tortoises 

 [3758-3860] were presented to the Zoological Department by Mr. 

 Stewart Briggs. The;' are labele'd "Desert" in the "region of San 

 Bernardino," San Bernardino county, Cal. 



ORDER ]I. SQUMATA. 



SUBORDER I. SAURT. 



FAMILY. IGUANID.E. 



?,. Dipsosaurus dorsalis (BAtRD & GIRARD). An irdivid- 

 ual [3699] from Tempo, Arizona, is in the collection, while one was 

 collected at Warren's VVells, San Bernardino county, Cal., by Mr. 

 Heller. 



4. Callisaurus ventralis (HALI.OWELL). Mr. HeUer ob- 

 tained seven of this species at Warren's Wells, San Bernardino coun- 

 ty, Cal., and Mr. Coolidge a dozen at Cajon Pass, three mi.es west of 

 San Bernardino, Cal. 



5. Holbrookia maculata GIRARD. The collection contains 

 several of this eenus that are probably referable to this form. One 

 [3721] from the Magdalena Mountains, Kelly, New Mexico, and sev- 

 eral [1879-1891] from tlie vicinity of Clayton, Colfax county, New 

 Mexico. 



(1. Orotnphytus baileyi STEJNFGER., The collection con- 

 tains one individual [3723] from the Magdalena Mountains, Kelly, 

 New Mexico. 



7. Crotaphytuswizlizenii BAIRD & GIRARD. Seven of this 

 species were collected at Warren's Wells. S.on Bernardino county, 

 Cal., by Mr. Heller, during May, 1897. A number of unrecorded 

 specimens from Idaho are contained in the Zoological Department. 

 They are: [2758-2761, 2763-!>76.i] Snake River, plains- by Upper Sal- 

 mon Falls; [2766] Plains on south _ide of Snake River, Salmon Falls; 

 [2767] between Blue Lakes and Shoshone: [277i)-277-;] Plains between 

 BliaS and Snake River; [2779-2783] 'Plains north of Snake River, be- 

 tween Upper Sal uion Falls and Bliss; [2786-2789] Plains across river 

 from Glenn's Ferry; [2819-2820] near Cottonwood Creek, Cassia 

 county; [2829-28.^0] Glenn's Ferry, Idaho. 



Mr. Coolidge obtained one at Oak Grove, San Diego county, Cal. 



8 Crolaphytus silus STEJNJjGER. This recently described 

 form is represented in the I^niverfity collection by two individuals, 

 one [3046] taken at Bakersfield, Kern county, ("al., and the other 

 [3616] collected by Mr. W. H. Osgood, at Livingston, Merced county, 

 California. 



Mr. Heller's collection contains one of this species from River- 

 side, Cal., taken in August, 1897. This is the first specimen that has 

 been taken outside of the great central valley region in California. 



