OCR Text |
Show 1875.] MR. G. E. D O B S O N O N N E W SPECIES OF BATS. 471 developed, the upper lip symmetrically thickened. Ears short; the distance between the base of the inner margin of the ear-conch and the termination of the outer margin near the angle of the mouth is equal to the distance from the base of the inner margin to the summit of the ear; integument forming the conch very thick, especially the lower half of the outer side; tragus short, broad above, narrow opposite the base of the inner margin. Feet wholly free from the wing-membrane, which is attached to the tibia a short distance above the ankle; this and the shortness of the phalanges of the third and fourth fingers cause remarkable narrowness of the wings. Postcalcaneal lobe small, termination of calcaneum indistinct; tip of tail free. Fur dark brown throughout; integuments and wing-membrane dark brown or black. The muzzle in front of the eyes, both above and beneath, is almost naked ; and the distribution of the fur upon other parts is similar to that in V. noctula. The upper incisors are similar to those of V. noctula; but the second upper premolar is separated by a small space from the canine, through which the small first premolar may be seen from without. Length (of an adult male preserved in alcohol), head and body 2"*35; tail 1"*7; head 0"*75 ; ear 0"*6; tragus 0"*25 x0"*15; forearm 1"*55; thumb 0"*32; second finger 2"*6; fourth finger 1"*65 ; tibia 0"*55 ; foot and claws 0"*45. Hab. Sarawak, Borneo. Type in the collection of the British Museum. b. Ears longer than broad, triangular; tragus reaching its greatest width below the middle of the inner margin, longer than broad ; no postcalcaneal lobule ; wings from the base of the toes ; premolars ~. Subgenus Alobus, Ptrs. 2. VESPERUGO PULCHER, n. sp. Crown of the head slightly elevated above the face-line; muzzle shaped more like that of some species of Vespertilio (V. emarginatus, e. g.),and the glandular prominences between the nostrils and eyes less developed than in most species of Vesperugo. Ears about four fifths the length of the head, the ascending inner margin straight or faintly convex, the upper half of the outer margin slightly concave, terminating in a line directly below the eye, but on a lower level than the angle of the mouth; tragus nearly half the length of the ear, shaped like that of V. serotinus. Posterior margin of the interfemoral membrane festooned with distinct papillae arranged like the teeth of a comb. Fur above sienna-brown, with shining tips, beneath wholly pure white; the dark-coloured fur of the back does not pass beyond a line connecting the angle of the mouth (when the head is extended) and the under surface of the humerus. Interfemoral, antebrachial, and wing-membranes between the humerus and femur white ; the remaining parts of the wing-membrane pale brown. |