Walter Woelber Dalquest

Name: A Synopsis of the American Bats of the Genus Pipistrellus
Author: Walter Woelber Dalquest

A Synopsis of the American Bats of the Genus Pipistrellus

Summary

“A Synopsis of the American Bats of the Genus Pipistrellus”, is a work by Walter Woelber Dalquest. It explores elements such as veracrucis, North America and canine.

Quotes from A Synopsis of the American Bats of the Genus Pipistrellus (Walter Woelber Dalquest)

Walter Woelber Dalquest, A Synopsis of the American Bats of the Genus Pipistrellus

“ Rinker did not refer the three specimens from Honduras to P. veracrucis because Ward's original description states that veracrucis has evenly spaced lower incisors and a basal cusp on the lower canine on only its forward edge. Rinker's specimens from Honduras have the first incisors in contact with each other, the second incisors in contact with the first incisors and the third incisor on each side of the lower jaw separated by a space from the second incisor and from the canine. ”

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Source: Gutenberg

Walter Woelber Dalquest, A Synopsis of the American Bats of the Genus Pipistrellus

“ P1, viewed from occlusal face, less than a seventh of area of canine, and from labial aspect concealed by canine and fourth premolar; lower, third premolar lower than anterior cusp of canine; lower premolars crowded, distance between canine and first molar less than length of second lower molar.
Remarks.—In the United States and in the northern part of Mexico, P. hesperus is the smallest bat found. Little is known about its habits. It emerges earlier in the evening than other species of bats. The frequency with which it is seen near cliffs suggests that it finds concealment under rocks. ”

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Source: Gutenberg

Walter Woelber Dalquest, A Synopsis of the American Bats of the Genus Pipistrellus

“ Study of the available specimens reveals that there are only two species, Pipistrellus hesperus and Pipistrellus subflavus; Pipistrellus veracrucis proves to be only a subspecies (geographic race) of P. subflavus, and Pipistrellus cinnamomeus proves to be a species of another genus, Myotis (see Hall and Dalquest, page 583 of this volume) .
Genus Pipistrellus Kaup
1829. ”

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Source: Gutenberg

Walter Woelber Dalquest, A Synopsis of the American Bats of the Genus Pipistrellus

“ The results of our study of these recently acquired Mexican specimens constitute our principal contribution in this paper; we have done little more with the material from the United States and Canada than to codify the findings of other mammalogists with respect to the systematic status and geographic distribution. ”

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Source: Gutenberg

Walter Woelber Dalquest, A Synopsis of the American Bats of the Genus Pipistrellus

“ The most recent report upon geographic variation throughout the entire species, Pipistrellus hesperus, was that by Hatfield (Jour. Mamm., 17:257-262, August 14, 1936) . Later, as explained below in the account of P. h. australis, Burt (Miscl. Publ., Mus. Zool., Univ. Michigan, 39:25, February 15, 1938) examined specimens from Sonora, Mexico, and for them and for specimens from southern Arizona proposed a different nomenclatural arrangement.
[Pg 596]
Pipistrellus hesperus hesperus (H. Allen)
Scotophilus hesperus H. Allen, Smithsonian, Miscl. Coll., No. 165, Vol. 7 (art. 1) : p. ”

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Source: Gutenberg

Walter Woelber Dalquest, A Synopsis of the American Bats of the Genus Pipistrellus

“ Marginal occurrences (after Hatfield, op. cit.:262) are: Colorado: Bedrock. New Mexico: Santa Rosa; Socorro; Laguna.
Diagnosis.—Size large for the species; total length, 82.0 (80-86) ; tibia, 12.4 (11.9-13.0) ; forearm, 32.8 (31.7-34.1) ; greatest length of skull, 12.7 (12.3-13.1) ; breadth of braincase, 6.6 (6.3-6.8) . Color between Buffy Brown and Wood Brown (after Hatfield, op. cit.:261, 262) .
Pipistrellus subflavus
(Synonomy under subspecies)
Range.—Canadian to Tropical life-zones of eastern North America from Quebec southward to Honduras. ”

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Source: Gutenberg

Walter Woelber Dalquest, A Synopsis of the American Bats of the Genus Pipistrellus

“ Characters.—Sayal Brown to darker than Mummy Brown, dorsally; total length, 73-89; foot more than half as long as tibia; tragus tapering and straight; [Pg 599] dorsal profile of skull convex in interorbital region; inner upper incisor bicuspidate; outer upper incisor unicuspidate (lacking accessory cusp on anterointernal face) ”

Walter Woelber Dalquest

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