. The families and genera of bats . Bats; Bats. THE FAMILIES AND GENERA OF BATS. 89 minute tufts of grayish fur, a character of much use in identifying specimens. Species examined.—Rhynchiscus naso (Wied). is a Genus SACCOPTERYX Illiger. 1811. Saccopteryx Illiger, Prodr. Syst. Mamrn. et Avium, p. 121 (leptura). 1838-39. Urocryptus Temminck, Van der Hoeven's Tijdschr. Nat. Gesch. en Physiol., V, p. 31 (Wttneata). 1878. Saccopteryx Dobson, Catal. Chiropt Brit. Mus., p. 369- (part). Type-species.—Vespertilio leptura Schreber. Geographic distribution.—Mainland of tropical and subtropical America.
. The families and genera of bats . Bats; Bats. THE FAMILIES AND GENERA OF BATS. 89 minute tufts of grayish fur, a character of much use in identifying specimens. Species examined.—Rhynchiscus naso (Wied). is a Genus SACCOPTERYX Illiger. 1811. Saccopteryx Illiger, Prodr. Syst. Mamrn. et Avium, p. 121 (leptura). 1838-39. Urocryptus Temminck, Van der Hoeven's Tijdschr. Nat. Gesch. en Physiol., V, p. 31 (Wttneata). 1878. Saccopteryx Dobson, Catal. Chiropt Brit. Mus., p. 369- (part). Type-species.—Vespertilio leptura Schreber. Geographic distribution.—Mainland of tropical and subtropical America. Number of forms.—About half a dozen species of this genus have been described. Characters.—Teeth as in Rhynchiscus, except that pm simple terete spicule, and the outer anterior cingulum cusp of m1 is less developed. Skull (fig. 14) with broad flat rostrum considerably more than half as long as brain case, and so low posteriorly as to form a dis- tinct angle with forehead. Sides of rostrum very slightly inflated and median groove obsolete. Lower rim of orbit so expanded as to hide tooth row when viewed from above. Pre- maxillaries large, expanded poste- riorly, and terminating on dorsal surface of rostrum by an abruptly truncate margin. Postorbital proc- esses large, broad, and flat. Brain case with distinct sagittal crest. Basisphenoid pits large, well de- fined, separated in middle by a distinct longitudinal plate. Audital bulla not as large as area of the pits, slightly but distinctly emar- ginate antero-internally. Externally distinguished by the presence of a glandular sac opening on upper surface of antebrachial mem- brane close to forearm near elbow. The sac is conspicuous in males, less developed in females. Species examined.—Saccopteryx bilineata (Temminck), S. leptura (Schreber), S. canescens Thomas, S. gymnura Thomas, S. centralis Fig. 14.—Saccopteryx bilineata. Catjra, Teinidad. No. 6102,Ameb. Mus. Nat. Hist. Please note that these images
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectbats, bookyear1907
