File:The American Museum journal (c1900-(1918)) (17971849710).jpg

Title: The American Museum journal
Identifier: americanmuseumjo04amer (find matches)
Year: c1900-(1918) (c190s)
Authors: American Museum of Natural History
Subjects: Natural history
Publisher: New York : American Museum of Natural History
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: Biodiversity Heritage Library

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THE AMERICAN MUSEUM JOURNAL 3. Eocene Mammals. Mr. Walter Granger had charge of this expedition, in southwestern Wyoming, and succeeded in sending in a large and remarkably fine collection of these rare fossils. The series is especially rich in the monkeys, rodents and small carnivora of the Middle Eocene, which until now have been very inadequately represented in our collections. 4. Aliocene Mainnials. Mr. J. W. Gidley was in charge of this expedition, in South Dakota, and obtained a fine skeleton, nearty complete, of the Miocene ancestor of the camels, besides a number of skulls and other fine specimens of extinct Horses, Camels, Carnivores and Rodents of the Upper Miocene, which will greatly add to our representation of these animals. 5. Pleistocene Cave Mammals of Arkansas. This collection is referred to on page 6.
Text Appearing After Image:
SOME EXTR.4.0RDINARY ANTS. IJHERE has just been placed on exhibition in the Svnoptic Hall of the ^Museum a collection to illus- trate the strange phenomena of gynandromorph- ism, a subject considered by Professor W. M. Wheeler, Curator of Invertebrate Zoology, in a recent paper in the Bulletin ' of the Museum issued in December. As the name indicates, a gynandromorph is an animal the body of which is partly male and partly female. The male and female characters may be either blended, as in the cases of male animals with female coloring or sculpture, or mosaic, as in animals having the body made up, as it were, of male and female pieces, just as a mosaic pavement is composed of different pieces of marble. The mosaic type of gynandromorphism is the more frequent, though this is merely a relative expression, since all cases of g^mandro- morphism are extremely rare. The six new cases of gynandro- morphous ants described in Professor Wheeler's paper were found only after examining many thousands of specimens during a period of four vears. In most of the known cases of gynandro- morphism, the body is divided into halves, one of which is male, I Bull. Am. Mus. Nat. Hist., vol. xix, Article xxix, pp. 653-683, 11 figures, 1903. 15

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