1847.] On a Neiv Species of Plecotus. 895 



pursuers to despair of success in taking it. It flew unweariedly, turned 

 with the rapidity of a butterfly, and alighted and rose again as readily 

 as that active insect. It is a male and mature. 



Plecotus homochrous, milii. Snout to vent 1 finches. Head f . 

 Tail If. Expanse 10. Weight less \ oz. Ears from anteal base 1£. 

 From posteal If. Arm |f . Forearm 1 T V Mid finger 2|. Femur 

 f . Tibia -f . Planta and nails T 5 ^, Colour, uniform obscure brown. 

 Fur, silky and short, internally black, externally brunescent above, 

 flavescent below, but obscurely in both cases. Membranes dusky 

 brown. Iris saturate brown. Head depressed. Nose medial, depres- 

 sed, with a central groove in both skin and scull. Nares, angulo-elliptic, 

 large, supernal, with a swollen margin. Lips simple. Eye prominent, 

 large for a true Bat, and nearer ear than snout. Forehead not raised. 

 Ears enormous, 2 \ of head, elliptic, nude, trans versally striolate. 

 Anteal edge of helix, half reflected, flat, smooth, and ending below in 

 a sacculus and salient knob. Inner ear narrow, pointed, erect, with a 

 small basal process for tragus, answering which is a small internal 

 antitragus. Ears remote, low down, touching with proximate edges 

 over the forehead, but not united there. Tongue simple and not 

 extensile. Teeth 2 ^ 2 \:\. £ :f . Wings ample, the membrane commen- 

 cing from shoulder almost, and taking in the wrists, first phalanx of 

 thumb, and the metatarse as well as tarse, and enveloping all the long 

 tail. Thumb 3 jointed. Index 1. Mid-digit 4. Annular and small 

 each 3. Tail 7 jointed, long and pointed, the mere tip free. No 

 teats traceable on chest or groin. Intestines 5y inches, thin coated 

 and fragile, wider above, gradually narrowing. No ccecum. Stomach 

 membranous, hemispheroidal, with terminal orifaces. If by T \ inches 

 along greater and lesser arches. 



Habitat. — Central region of sub-Himalayas. 



Remark. — Nearly allied to Auritus, but differs therefrom by dis- 

 united ears, fewer molars, a flat inner ear, shorter fur, and nude ears, 

 besides its more uniform colour. The joints of the digits also differ, 

 showing how little dependance can be placed upon this mark which 

 yet Cuvier, Geoffroy and II. Smith make the corner-stone of their 

 general classification of the Family ! 



I subjoin a synopsis of the several species thus far ascertained 



