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Now showing items 1416-1435 of 6095

An evaluation of jaw suspension in sharks. American Museum novitates ; no. 2706

Maisey, John G. (New York, N.Y. : American Museum of Natural History, 1980)

"Evidence and opinions on the nature and diversity of elasmobranch jaw suspension are discussed and the phylogenetic implications of some of these differences are considered. The hyomandibula is attached to the mandibular ...
The evidence afforded by the Boskop skull of a new species of primitive man (Homo capensis). Anthropological papers of the AMNH ; v. 23, pt. 2

Broom, Robert, 1866-1951. (New York : Published by order of the Trustees [of the American Museum of Natural History], 1918)
Evidence for the specific status of the water snake Natrix fasciata. American Museum novitates ; no. 2122

Conant, Roger, 1909- (New York, N.Y. : American Museum of Natural History, 1963)

"A new interpretation of the sipedon-fasciata complex of the water snake genus Natrix is proposed. Natrix fasciata is elevated to specific status with the inclusion of three fresh-water races, fasciata, confluens, pictiventris; ...
Evidence of a second species of Synbranchus (Pisces, Teleostei) in South America. American Museum novitates ; no. 2497

Rosen, Donn Eric, 1929-; Rumney, Avis. (New York, N.Y. : American Museum of Natural History, 1972)

"A new species of Synbranchus from the Amazon Basin is described and compared with sympatric and allopatric populations of Synbranchus marmoratus and with the caverniculous synbranchid, Furmastix infernalis, from Yucatán. ...
Evidence of prenatal function of the central nervous system in man (James Arthur lecture on the evolution of the human brain, no. 26, 1957).

Hooker, Davenport, 1887- (American Museum of Natural History, 1958)
Evidence of sexual maturation in young adult shiner perch, Cymatogaster aggregata Gibbons (Perciformes, Embiotocidae). American Museum novitates ; no. 2479

Shaw, Evelyn S. (New York, N.Y. : American Museum of Natural History, 1971)

"Examination of Cymatogaster aggregata collected in Bodega Bay, California revealed that many young males, 5.0 to 6.0 cm. in length, become sexually mature during the first summer after birth and that females, 4.0 to 5.0 ...
Evolution and development of self-regulation (James Arthur lecture on the evolution of the human brain, no. 77, 2007).

Posner, Michael I. (American Museum of Natural History, 2008)
Evolution and systematics of Cerion (Mollusca, Pulmonata) on New Providence Island : a radical revision. Bulletin of the AMNH ; v. 182, article 4

Gould, Stephen Jay.; Woodruff, David S. ([New York] : American Museum of Natural History, 1986)

"Cerion has been described by its leading student W.J. Clench as 'the most difficult genus of pulmonate mollusks to classify.' No other pulmonate genus shows greater diversity of form; moreover, almost all these divergent ...
The evolution and systematics of the iguanid genus Uma and its relation to the evolution of other North American desert reptiles. Bulletin of the AMNH ; v. 114, article 3

Norris, Kenneth S. (Kenneth Stafford) (New York : [American Museum of Natural History], 1958)

"The genus Uma occurs on the Mojave and Sonoran deserts and on the Chihuahuan Desert of Mexico. 2. The genus is totally restricted to aeolian sand deposits, most of which are of recent origin. 3. Migration of present-day ...
Evolutionary and biogeographic patterns in the Asteropyginae (Trilobita, Devonian) Delo, 1935. Bulletin of the AMNH ; no. 232

Lieberman, Bruce S.; Kloc, Gerald J. ([New York] : American Museum of Natural History, 1997)

"This paper presents a phylogenetic analysis of the Asteropyginae Delo, 1935. Sixty-six characters and 39 taxa were employed in a cladistic analysis that produced a single most parsimonious tree that is presented as a ...
Evolutionary Depth of Human Brain Language Areas: Roles of Common Ancestors and Major Adaptive Shifts

Gannon, Patrick (American Museum of Natural History, 2009-03-23)
An evolutionary interpretation of the phenomenon of neurosecretion (James Arthur lecture on the evolution of the human brain, no. 47, 1977).

Scharrer, Berta, 1906- (American Museum of Natural History, 1978)
Evolutionary relationships of living lemurs and lorises (Mammalia, Primates) and their potential affinities with European Eocene Adapidae. Anthropological papers of the AMNH ; v. 60, pt. 1

Schwartz, Jeffrey H.; Tattersall, Ian. (New York : American Museum of Natural History, 1985)
Evolution, cognition, consciousness, intelligence and creativity (James Arthur lecture on the evolution of the human brain, no. 73, 2003).

Cotterill, Rodney, 1933- (American Museum of Natural History, 2003)
Evolution in the Rhipidura rufifrons group. American Museum novitates ; no. 1321

Mayr, Ernst, 1904-; Moynihan, M.; Whitney South Sea Expedition of the American Museum of Natural History (1920-1941) (New York City : The American Museum of Natural History, 1946)
Evolution of caste in neotropical swarm-founding wasps (Hymenoptera, Vespidae, Epiponini). American Museum novitates ; no. 3467

Noll, Fernando Barbosa.; Wenzel, John W.; Zucchi, Ronaldo. (New York, NY : American Museum of Natural History, 2004)

"Reproductive castes are compared in species of swarming wasps representing all currently recognized genera of Epiponini (Polistinae). New morphometric data for nine measures of body parts and ovarian data are presented ...
Evolution of cleptoparasitism in anthophorid bees as revealed by their mode of parasitism and first instars (Hymenoptera, Apoidea). American Museum novitates ; no. 3029

Rozen, Jerome George, 1928- (New York, N.Y. : American Museum of Natural History, 1991)
Evolution of extreme sexual dimorphisms : structural and behavioral convergence among broad-headed male Drosophilidae (Diptera). American Museum novitates ; no. 2939

Grimaldi, David A.; Fenster, Gene. (New York, N.Y. : American Museum of Natural History, 1989)

"Males with broad heads (hypercephaly) have arisen 21-24 times in various taxa of flies; 11 instances are in the Drosophilidae. Details of the morphological modification of the male head vary among the hypercephalic taxa, ...
Evolution of large carnivores during the mid-Cenozoic of North America : the temnocyonine radiation (Mammalia, Amphicyonidae). (Bulletin of the American Museum of Natural History, no. 358)

Hunt, Robert M., Jr. (American Museum of Natural History., 2011-11-23)

This study describes and summarizes the Temnocyoninae (Mammalia, Carnivora), a subfamily of amphicyonid carnivores of considerable diversity and singular comorphology within Cenozoic faunas of North America. In temnocyonines, ...
Evolution of mammalian dental enamel. American Museum novitates ; no. 2360

Moss, Melvin L. (New York, N.Y. : American Museum of Natural History, 1969)

"A polarization microscopic study of evolutionary changes in mammalian dental enamel structure is reported. An extensive series of fossil and Recent teeth were studied. The data show that the enamel of the earliest true ...

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