The nature and origin of cone-in-cone structure / Bertram G. Woodland --

v.13:no.4(1964)

A geographic variation gradient in frogs, by Karl P. Schmidt.

v.20:no.29(1938)

A geographic classification of Neotropical mammals.

v.36:no.6(1958)

Geographic variation in the chicken turtle, Deirochelys reticularia Latreille / Albert Schwartz.

v.34:no.41(1956)

Patterns of geographic variation in allozymes of the Olympic salamander, Rhyacotriton Olympicus (Caudata: Dicamptodontidae) : a contribution in celebration of the distinguished scholarship of Robert F. Inger on the occasion of his sixty-fifth birthday / David A. Good, Gloria Z. Wurst [and] David B. Wake.

n.s. no.32(1987)

The origin of the land birds of Tristan da Cunha.

v.37:no.6(1955)

Geographic variation and evolution in South American Cistothorus platensis (Aves, Troglodytidae) : a contribution in celebration of the distinguished scholarship of Robert F. Inger on the occasion of his sixty-fifth birthday / Melvin A. Traylor, Jr.

n.s. no.48(1988)

The South American herpetofauna : its origin, evolution, and dispersal / William E. Duellman, editor.

no.7 (1979)

An annotated bibliography on the origin and descent of domestic mammals, [by] Shimon Angress and Charles A. Reed.

v.54:no.1(1962)

Agate : physical properties and origin, archaeology and folk-lore / By Oliver C. Farrington, Curator of Geology, [and] Berthold Laufer, Curator of Anthropology.

no.8(1927)

Geographic distribution and morphological variation in Mimon bennettii (Chiroptera, Phyllostomidae)

We studied discrete and quantitative data from 88 specimens of the subgenus Mimon previously identified as Mimon bennettii (Gray, 1838) and M. cozumelae Goldman, 1914 from diverse parts of their range. Our data indicate that specimens of Mimon bennetii in Brazil presented geographic variation in morphometrical characters and mosaic variation in qualitative traits. Specimens from the Cerrado biome collected in Brazilian states like Piaui, Tocantins, and Goiás have longer forearms than those distributed in the Atlantic and Amazon forested domains. Based on morphometrics, as showed by t-tests, specimens of M. bennettii from the Brazilian Cerrado resemble phenetically more with M. cozumelae than the M. bennettii from Atlantic Forest. Characters presently used to diagnosis M. cozumelae also were also recorded to M. bennettii in diverse parts of Brazil, making that validity of M. cozumelae questionable based on this kind of traits. This research also updated the geographic distribution to the M. bennettii in Brazil.

Geographic variation in the Central American colubrine snake, Vinia sebae [by] Karl P. Schmidt and A. Stanley Rand.

v.39:no.10(1957)

Clutch size in the small-sized lizard Eurolophosaurus nanuzae (Tropiduridae): does it vary along the geographic distribution of the species?

We studied life history traits of females of the lizard Eurolophosaurus nanuzae (Rodrigues, 1981), an endemic species of rock outcrop habitats in southeastern Brazil. During October 2002 and 2003 we sampled three populations in sites that encompass the meridional portion of the geographic range of the species. Clutch size varied from one to three eggs, with most females carrying two eggs. Clutch size did not vary among populations, but was correlated to female body size. Only larger females produced clutches of three eggs. Females of the small-sized E. nanuzae produce eggs as large as those of medium-sized tropidurids, thus investing a considerable amount of energy to produce clutches resulting in high values of relative clutch mass.

Galictis cuja (Mammalia): an update of current knowledge and geographic distribution

The lesser grison (Galictis cuja) is one of the least-known mustelids in the Neotropics, despite its broad range across South America. This study aimed to explore current knowledge of the distribution of the species to identify gaps in knowledge and anticipate its full geographic distribution. Eighty-nine articles have mentioned G. cuja since 1969, but only 13 focused on the species. We generated a detailed model of the species' potential distribution that validated previous maps, but with improved detail, supporting previous southernmost records, and providing a means of identifying priority sites for conservation and management of the species.

Geographic variation in ectoparasitic mites diversity in Tadarida Brasiliensis (Chiroptera, Molossidae)

Tadarida brasiliensis (Geoffroy, 1824), the Brazilian free-tailed bat, is an insectivorous bat that occurs from southern United States of America to southern South America. In this study we present the first data on diversity of ectoparasitic mites of T. brasiliensis in Brazil. A compilation and analysis of the studies of mite diversity conducted in different points the geographic distribution this bat species are provided. The mites were collected from March 2010 to November 2011 on 160 T. brasiliensis adult bats captured in southern Brazil. Four species of mites have been found: Chiroptonyssus robustipes (Ewing, 1925), Ewingana longa (Ewing, 1938), Ewingana inaequalis (Radford, 1948), and specimens of Cheyletidae. Chiroptonyssus robustipes was the most prevalent species (100%), followed by E. longa (20%), E. inaequalis (10%), and specimens of Cheyletidae (1.25%). The data currently available show that C. robustipes parasitizes T. brasiliensis throughout its region of occurrence, and this mite is highly prevalent and abundant. The two species of Ewingana accompany the geographical distribution of T. brasiliensis, but with much lower prevalence and abundance.