﻿ANTROZOUS PALLIDUS PACIFICU8. 



45 



Texas. The type, uow in the United States National Museum, is in good 

 preservation and clearly referable to the Eastern form. 



Typical Antrozons pallid its is readily distiiignishable from ^^L. 

 pacijicus by its smaller size, paler color, shorter, broader skull, and 

 narrower upper premolar. 



ANTROZOUS PALLIDUS PACIFICUS Merriam. 



1864. Anirosous palUdns IL Allen, Moiiogr. N. Am. Buts, p. 68 (part). 

 1878. Anirozous 2>allidns Dobsou, Catal, Cliiioptera Brit. Mus., p. 171 (part). 

 1893. Antrozons palHclus H. Allen, Monogr. Bats. N. Am., p. GO (part;. 

 1897. AnirozoHs imUidus pacijicus Merriam, Proc. Biol. Soc. Washington, XI, 2>. 180, 

 July 1, 1897. 



Type locality. — Old Fort Tejon, Canada de las Uvas, California. 



Geographic distribution.— Austnil zones in the United States west of 

 the Ivocky Mountains, south to Lower California and Queretaro. 



General cliaracters. — Slightly larger than typical Antro.zous i)((llid.us 

 (total length about 120 mm,, average length of forearm about 5J: mm.); 

 color, yellowish drab brown. 



JiJars, memhranes^ and distribution of 

 fur. — Essentially as in tyiticdl jxdlidus. 



Color. — Color uniform yellowish drab 

 throughout to base of hairs; under 

 parts clear and unmixed with darker; 

 back strongly bnt irregularly shaded 

 by the dusky tips of the hairs. 



SJcull. — The skull of Antrozons palli- 

 dus pacificus (fig. 5 b) varies in greatest 

 length from 20 mm. to 22 mm., and in 

 zj^gomatic breadth from 13 mm. to 14 

 mm. Brain case, rostrum, and bony 

 palate considerably narrower than in 

 typical pallid Ks. Supraoccipital region 

 more pointed and overhanging than in typical 2)allidus. Length of bony 

 palate behind molars (exclusive of median spine) usually equal to or 

 greater than width at base of median spine. 



Teeth. — Teeth (fig. Qb) essentially as in true palUdus except that all 

 are larger and the up])er premolar is conspicuously broader and shorter. 



Measurements. — See table, page 4(3. 



Specimens examined.— Total number, 59, from the following localities: 



Calilbrnia: Albambra, 1; Bear Valley, 8; Berkeley, 1; Dulzura, 6; Fort 

 Crook, 1; Fresno, 3; Old Fort Tejon, 6; Poso Creek, 1 (skin) ; Santa Barbara, 

 3; Santa Ysabel, 4 (3 skins) ; Witch Creek, 2. 



Lower California: Cape St. Lucas, 3; Comondu, 5 (skins) ; San Fernando, 5 

 (Miller coll.). 



Oregon: Fort Dalles, 1 (skin); Twelve Mile Creek, 1. 

 Qneretaro: Jalpan, 7. 

 Utah: St. Thomas, 1. 



Fig. 6. — Teeth of (a) -Antrozons paUidns and 

 {b) Aiitrozous pallidus pacificus 



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