May, 1907.] Collection of Batraehians and Reptiles. 151 



NOTES ON A COLLECTION OF BATRACHIANS AND REP- 

 TILES FROM CENTRAL AMERICA. 



Dr. D. a. Atkinson. 



It has been the privilege of the writer to look over a small 

 collection of Batraehians and Reptiles made in Central America 

 during January and February of 1905 by.E. B. WilHamson, 

 Jas. S. Hine and Chas. Deam. There are seventy-two specimens 

 in the collection, sixty-eight of which were collected in Guate- 

 mala, two in British Honduras, and two in Honduras. 



Seven frog larvae and one young snake could not be deter- 

 mined specifically on account of their immaturity and the lack 

 of descriptions of the young of the Central American species. 



The eighteen specimens of Batraehians represent four genera 

 and seven species (including the undetermined Rana sp.) ; the 

 fifty-four specimens of Reptiles represent twelve genera and 

 seventeen species. While none of the specimens present any 

 great variations from the descriptions published, still there were 

 a. number of minor variations noted and recorded in the following 

 notes. The known geographical range of several species is con- 

 siderablv extended by this collection. The measurements and 

 some of the scale formulae are given with most species of reptiles, 

 as there is a lack of information along these lines. 



BATRACHIA. 



BUFO. 



This genus is represented by six specimens, belonging to two^ 

 vSpecies; all the specimens being adults except one. 



(a) Bufo marinus (specimens No. 3 and 36). This is the large 

 brackish waterspecies, being one of the largest species of the genus, 

 with verv large and prominent parotid glands. No. 3 was collected 

 at Gualan, Guatemala, Jan. 13, 1905; No. 36 was collected at 

 Los Amates, Guatemala, Feb. 25, 1905. Both specimens are 

 full grown and show the characteristic parotid development, but 

 have much smoother skin than the specimens of the same 

 species from the South American coast. 



{h) Bufo valliceps. (Specimens No. 29, 51, 55, and 63.) 

 No. 29, collected at Gualan, Guatemala, Jan. 16, 1905. 

 is an adult specimen, typical coloration, and with very prom- 

 inent tubercles for this species; No. 51 was collected at Los 

 Amates, Guatemala, Feb. 25, 1905, adult specimen with very 

 dark coloration; No. 55 was collected at Gualan, Guatemala. 

 Jan. 13, 1905, adult, coloration and tubercles typical; No. 63, 

 was collected at Gualan, Guatemala, January 13, 1905, and is a 

 very young specimen, -^4 in. in length. The bony ridges on the 

 head of No. 63 are very slightly developed, but the coloration 

 and the tubercles are verv similar to those of the adult. 



