Biological Papers. 153 



ANIMALS, REPTILES AND AMPHIBIANS OF THE ROSE- 

 BUD INDIAN RESERVATION, SOUTH DAKOTA. 



By Albert B. Reagan, La Push, Wash. 



T)ELOW is given a list of the animals, reptiles and am- 

 J-^ phibians seen on the Rosebud Indian reservation. South 

 Dakota, from January 7, 1904, to March 20, 1905. 



AMPHIBIANS AND REPTILES. 



1. — Bufo lentiginosus Shaw. Not common. 



2. — Rana pipens Schreber. Common frog. Very abundant. 



3. — Rana clamitans Linn. Seldom seen. 



4. — Tammophis sirtalis Linn. 



5. — Licopellis vernalis Linn. Green snake. Rare. 



6. — Pituophis sayi Schegel. Oftly one individual of this species was 



seen. 

 7. — Sistrurus catenatus Rafinesque. Prairie rattlesnake. 

 8. — Cro talus horridus? 



(The last two species are found everywhere. They have dens in 



the Rattlesnake buttes. There on warm days they come out and 



bask in the sun by thousands.) 

 9. — Chelydra serpentina? 



ANIMALS. 



1. — Lepus nuttalli imallurus, subspecies mearnsi Allen. This rabbit 

 is not very abundant on the reservation, except in the cultivated 

 areas and in the little patches of timber along the streams. 

 2. — Lepus campestris Bauchmann. Jack-rabbit. This rabbit lives 

 principally in the "Mauvaises Terres" and in places I'emote from 

 the settlements. 

 3. — Zapus hudsonius Zimm. Spring mouse. Of this species only one 



individual was seen. 

 4. — Thomomys talpoides Maxim. 



5. — Fiber xibethicus Linn. Muskrat. Very plentiful along water- 

 courses. 

 6. — Microtus hydeni Baird. 

 7. — Microtus austerus LeConte. 

 8. — Arvicola riparious. Ord. 



(The last three species ai'e quite abundant.) 

 9. — Castor canadensis Kuhl. Rare. 

 10. — Spermophilus tridecemlineatus Mitchel. Abundant. 

 11. — Sorex personatus Isadore Geoffrey St. Hilaire. Only one indi- 

 vidual of this species was seen. 

 12.-;— Scalops aquaticus, subpecies machrinus Rafin. Prairie mole. Not 



abundant. 

 13. — Vespertilio fuscus Beauv. 



14. — Odocoileus americanus, subspecies macrourus Rafin. Very rare; 

 found only in the "bad lands." 



