1895.] NATUKAL SCIENCES OF PHILADELPHIA. 33 



parison. Since then Mr. Chapman 2 has not only stated that the 

 Florida specimens examined by him are darker than typical borealis 

 but that pfrifferi differs from borealis in its "brighter" colors. This 

 statement removes the last objection to recognizing the Florida Red 

 Bat as a well-marked and hitherto undefined subspecies of Atalapha 

 borealis. 



2. Peromyscus insignis sp. nov. Type, ad. $, No. 1,308, Col. of S. N. Khoads, 

 Dulzura, San Diego Co., California. Col. by Charles Marsh, Aug. 21, 1893. 



Description. — Size very large, ears, feet, and whiskers of maxi- 

 mum size, tail very long, considerably exceeding length of head 

 and body. Colors above light brownish- gray, strongly shaded with 

 coarse, black hairs, grayest on head, blackest on back, brownest on 

 rump and thighs; sides, from whiskers to hams, including upper half 

 of forearm, washed with fawn, becoming ochraceous on forearm and 

 along division of upper and lower body colors; under surfaces, in- 

 cluding pes, manus, wrist, and lower (inner) surfaces of limbs and 

 lower half of tail, a uniform, clear, grayish- white, the hair plum- 

 beous basally; whiskers black; upper half of tail, sooty; ears nearly 

 naked, the membrane within and without of a smoke-brown hue and 

 equally clothed on both sides with sparse, minute, grayish hairs. 



Skull — Small for the size of animal, rostrum short and slender; 

 nasals short, their bases distinctly anterior to the posterior extension- 

 of the premaxillaries, the latter reaching behind anterior plane of 

 orbits; frontals rounded posteriorly ; audital bullse inflated; incisive 

 foramina short, wide at base, and much narrowed anteriorly. 



Measurements (of type in millimeters). — Total length, 233; tail 

 vertebra, 132; hind foot, 26; ear (from crown), 23. Skull— Total 

 length, 28.7; basilar length, 21; nasals, 10.4; zygomatic expansion, 

 15; interorbital constriction, 4.3; length of mandible, 14.8; width 

 of mandible, 7.5. 



During a recent cursory examination of a series of thirty or more 

 White-footed Mice from the West Cascade region of California south 

 of San Francisco Bay, which had long laid in my collection as un- 

 doubted specimens of the "Parasitic Mouse" of Cooper, described 

 in 1848, by Gambel, from a Monterey specimen under the name Mus 

 califomicus, I was surprised to find those from San Diego County 

 uniformly of a grayer (less brown) color above and lacking the 



2 Bull. Anier. Mus. Nat. Hist., 1894. 343. 



