. A monograph of the bats of North America [microform]. Bats; Chauves-souris. I II 28 BULLETIN 43, UNITED STATES NATIONAL MUSEUM. I. The Tlat, in which the hiimoritti is long nnd nlender, with a small pectoral ridge. Ulnarndimontury. The radinsnonstitutes the bulk of the forearm; narpus composed of nix 1)oneH; the metacarpal bones, five in nnmlier, 8e])a- -^. rate and distinct; tlio phalanges generally, two in number; thumb, and in | some genera the index linger, surmounted by a claw. II. The Pterodactyl, in which the humerus is short and straight, very broud I at head, with angular and promin
. A monograph of the bats of North America [microform]. Bats; Chauves-souris. I II 28 BULLETIN 43, UNITED STATES NATIONAL MUSEUM. I. The Tlat, in which the hiimoritti is long nnd nlender, with a small pectoral ridge. Ulnarndimontury. The radinsnonstitutes the bulk of the forearm; narpus composed of nix 1)oneH; the metacarpal bones, five in nnmlier, 8e])a- -^. rate and distinct; tlio phalanges generally, two in number; thumb, and in | some genera the index linger, surmounted by a claw. II. The Pterodactyl, in which the humerus is short and straight, very broud I at head, with angular and prominent pectoral ridge; ulna and radius dis- tinct, of nearly equal size; carpus composed of five bones; metacarpus of I four bones, separate and distinct; first finger with three joints, second with Ibur, third with five, fourth with four joints, all provided with claw8, with the exception of the fourth, which is remarkable for the extraordinary I ' development of its several joints. It is from this last-mentioned finger to the base of the foot that the skin was stretched by which the animal was | enabled to fly. a. <. DIAGRAM OF THE BONKS OF ANTKRlOlt EXTRKM1TIE8 OF } VEKTEBRATK8. A. Bat.—a. Scapula, b. HunieruH. c. ItailiiiR. d. Kiidiniuut of ulna nr.„liylogeint. Tlie nit^jority of blnls are without it. 1). l*TBHODACTYLE.—References the same as in Fig. 1 I. 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 Allen, Harrison, 1841-1897. Washington : G. P. O.
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Keywords: ., book, bookcentury1800, bookdecade1890, bookpublisherwashingtongpo
