MAMMALS OF THE MEXICAN BOUNDARY. 



81 



fish fauna is limited and variable; but we obtained several species. 

 Birds and mammals are fairly well represented, but, as the species 

 will be fully listed in the special reports on those classes, details are 

 omitted here. A number of turtle- were found in the Ki<> Grande al 

 El Paso, and Prof. J. I). Brunei- obtained the ornate box-turtle, 

 Terrapene omnia (Agassiz). Lizards and snakes were quiescenl 

 during the winter season of our stay; but the efforts of Mr. J. II. 

 (Mark, of the old Boundary Survey, and those of Col. J. I). Graham, 

 Maj. W. II. Emory, Lieutenant Eves, Dr. S. \Y. Woodhouse, and 

 S. W. Crawford, of the Army, have added the following species t<> 

 the collections of the l'. S. National Museum from this station: 



Lizards. 



Crotaphytus collaris (Say). 



Holbrookia texana (Troschel). 



Sceloporus clarkii Baird and Girard. 



Sceloporus spinosns Wieginann. 



Sceloporus undulatus consobrinus 

 (Baird and Girard ). 



Sceloporus thayerii Baird and Girard. 



Phrynosoma cornutum (Harlan). 



Anota modesta ( Girard ). 



Cnemidophorus tessellatus (Say). 



Cnemidophorus gularis Baird and 

 Girard. 



Eumeces obsoletus (Baird ami Gi- 

 rard). 



[Anniella texana Boulenger. "A sin- 

 gle specimen from El Paso, Tex."] 



Snakes. 



CyclopMs wstivus (Linnaeus). 

 Coluber emoryi (Baird and Girard). 

 Rhinochilus lecontei Baird and Girard. 

 Eutwnia sirtalis parietalis (Say). 



Batrachias. 



Amblystoma tigrinum (Green). 



.1 mblystoma tigrinum californiense 



Gray. 

 Bufo compactilis Wiegmann. 



Station No. 6. — Rio Grande. Chihuahua. Mexico, opposite old 

 Fort Bliss. Texas. Altitude, 1,130 meters (3,708 feet). Birds and 

 mammals collected by Mearns and Holzner, March 11 and 15, 1892. 



Station No. 7. — Monument No. 15, near B. F. Wragg's ranch, 80 

 km. (49.6 miles) west of the initial Monument on the Rio Grande. 

 Latitude. 31° 47'. Altitude. 1,280 meters I L,200 feet). This camp 

 was occupied from March 20 to April 7, 1892. The lowest point in 

 the neighborhood (distant 31 miles) is 80 meters lower than the 

 camp. The Florida Mountains. 12 km. (26 miles) northwest of 

 Monument No. 15, have an altitude of 2,249 meters (7.370 feet), and 

 are -aid to he wooded with red juniper and pinon pine, and to con- 

 lain good water. They were not visited by any of our party. The 

 nearest water that is available to wild animals i- that of the Palomas 

 Lakes, in the Mimbres Valley. 14 miles to the westward. The 

 country is mostly low, rolling, with sand hill- and a few volcanic 

 buttes (Aguila Mountain-) and low ranges, known a- the Seca and 

 Potrillo mountain- (altitude 1,280 to 1,800 meter-), within a few 

 miles of the camp; these support a growth of bushes and some grass. 

 There are no tree-: hut yuccas of arborescent habit (Yucca constricta 

 30639 No. 56—07 M 



