NOTES ON A COLLECTION OF REPTILES 



Made by Mr. C. J. Pierson at Fort Smith, Arkansas, with 

 Remarks on other Eastern Reptiles-1 



EGBERT BAIRD McLAIN. 



The following is simply a faunal list, whose sole object is to add 

 facts concerning the geographical distribution of the reptiles of the 

 great central region of the United States that have not been men- 

 tioned heretofore. As the knowledge of the Eastern — that is east of 

 the Rocky Mountains — reptiles is to-day much more meagre than 

 that of the Western — West of the Rockies — reptiles, any list, either 

 local or of a scatterinjj nalure, adds to our understanding of their 

 ranges and relationships. 



Most of the specimens enumeruted in this list wero collected by 

 Mr. 0. J. Pierson at Fort Smith, Arkansas, in 1896-97, and have since 

 been presented by him to the Z .ological Department of Stanford 

 University. To these were added the specimens collected at differ- 

 ent places over this region by different people and hitherto, as far 

 as I know, have not been recorded. 



My thanks are due to Mr. C. J. Pierson for permission to work 

 up his collection, which lack of time prevented him from doing. 

 Numbers are given of the specimens, both for confirmation of my 

 statements and for future reference. 



ORDER. TESTUDINATA. 



FAMILY. TRIONYCHIP^. 



1. Atnyda mutica (LE SEffR). One specimen, whose cara- 

 pace measured six inches in length {3767', was taken at Fort Smith, 

 Arkansas. 



2. Aspidonectes epinifer (T,E SEUR). A small individual 

 (1230) from Bloomington, Monroe county, Indiana. 



FAMILY. CHELYIIDiE. 



3. Maoroohelys lacertina (SCHWEIGGER). One of these 

 large "snapping turtles" was taken at Fort Smith, Arkansas, ^3762), 

 whose carapace was seven inches long. 



FAMILY. KINOSTERNID^. . 



4. Aromocbelys odoratus (LATREILLE). Two specimens 

 are in the collection, one (1226) labeled "Southern 111.," the other 

 with no data. 



FAMILY. EMYDIDiE. 



5. Malaclemmys geographicus (LE SEUR). A small speci- 

 men (1227) came from Piano, Kendall county, Illinois, and another 

 (1224), very young one, from''"Ross Lake and Bloody Run, vicinity of 

 Cincinnati, Ohio." 



