. A history of British mammals . Mammals; Bats; Insectivores (Mammals); Rodents. at its extremity, in front of deep grooves separating the hairy, flat, and depressed central region from the glandular sides. There is no groove in front of the nostrils. The wing (Plate XVII., Fig. i) is broad and arises from the base of the toes. The antibrachial membrane is well developed. The fifth metacarpal is a little shorter than the third and fourth. The calcar extends about half-way from foot to tail. There is no post- calcarial lobe. The tail is almost as long as the head and body, and has the tip sligh
. A history of British mammals . Mammals; Bats; Insectivores (Mammals); Rodents. at its extremity, in front of deep grooves separating the hairy, flat, and depressed central region from the glandular sides. There is no groove in front of the nostrils. The wing (Plate XVII., Fig. i) is broad and arises from the base of the toes. The antibrachial membrane is well developed. The fifth metacarpal is a little shorter than the third and fourth. The calcar extends about half-way from foot to tail. There is no post- calcarial lobe. The tail is almost as long as the head and body, and has the tip slightly exserted. The skull (Fig. 8, No. 4, p. loi) is weak; the profile descends gradu- ally from the inflated brain - case to the depressed, broad, not saddle - shaped facial region; the zygomata are flattened; the cranial crests are very slightly developed ; the auditory bullae are very large, fully equalling, or, perhaps, exceeding, in size those of much larger bats, such as Nyctalus noctula, Vespertilio serotinus or Myotis myosotis. There are two less teeth (Fig. 8, No. 4, p. loi ; Fig. 19; and Fig. 20, p. 197) than in Myotis, one pair of upper premolars being absent; two more than in Barbastella, the formula being:—. Fig. 19.—Diagram of Arrange- ment OF Teeth in Genus PUcotus. (l) Upper and (2) Lower Jaw. .2-2 I-I , 2-2 c , pm I - I 3-3 3-3 3-3 36. The upper incisors point directly inwards; the inner is bifid, with inner cusps much exceeding the outer; the outer is smaller and unicuspid. The canine is without accessory cusps. The anterior upper premolar, although small, is distinctly visible externally. The posterior upper premolar is large. The three lower premolars graduate in size from the posterior to the central, which is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Barrett-Hamilton,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmammals, bookyear1910
