DESCRIPTION OF A NEW SPECIES OF BAT, VESPERTILIO LON- 

 GICRUS, FROM PUGET SOUND. 



BY FRK die: RICK AV. TKITE. 



Among- a number of small fishes collected in 18S0 by Prof. D. S. 

 Jordan, for the National Museum, in the vicinit}^ of Puget Sound, was 

 found a single bat, which, upon examination, j)roves to be of a species 

 closely allied to T'. liicifngus, but hitherto uu described. 



The specimen is a female and is in a tolerable state of preservation, 

 though the hair is lacking from the abdomen and tbe lumbar region of 

 the back. 



DESCRIPTION.* 



Glandular prominences of the sides of the face well developed, as in 

 V. lucifugus, making the muzzle appear blunt. Ears shorter than the 

 head ; laid forward they do not reach the nostrils by a millimeter ; 

 inner margin evenly convex from lobe to tip ; upper third of outer mar- 

 gin scarcely concave, lower two-thirds rather strongly convex. Length 

 of the tragus slightly more than one-half the height of the ear ; inner 

 margin concave, outer margin convex, crenulate ; tij) rounded off. 



Wings from the base of the toes ; foot less than one-half the length 

 of the head. Tail long. Interfemoral membrane deep antero-poster- 

 iorly ; the hinder margin straight in the posterior half Calcaneum 

 ending in a small rounded lobe in the middle of the hinder margin of 

 the interfemoral membrane ; the margin between this lobe and the 

 foot very convex. Only tbe cartilaginous extremity of the tail free. 

 Tibia very long, excelling the head by nearly one-fourth. 



The fur of the body extends on the interfemoral membrane along the 

 tail as far as a line joining the centers of the tibiee. The fur above 

 uniform umber colored, or slightly lighter at the extremities ; beneath, 

 umber in the basal three-i^urths, dull Naples yellow in the apical fourth. 

 Membranes dull brown. 



Skull with the face very short and the brain-case greatly elevated. 

 Teeth as in T'. lucifugus, except that the first upper premolar is not 

 crowded behind the canine. 



On account of the length of the tibia, I have thought it appropriate 

 to name the species Ves2)ertilio longicrus. 



It is evident that it is closely allied to V. hwifugiis, but it is readily 

 distinguishable from that species by its shorter and broader ears, longer 

 tibiae, smaller feet, and duller color. 



* A. diagnosis of tlie species was published in tScieuce, Dec. "24, 1886, p. 586. 

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