File:The American Museum journal (c1900-(1918)) (17536982544).jpg

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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 the other female (lateral gynandromorphism). This phase of the phenomenon is illustrated in the accompanying figure. An- other group of cases comprises anomalies with the anterior por- tion of the body of a different sex from the posterior portion (frontal or "tandem" gynandromorphism). Still other cases have the dorsal side of one, the ventral ofanothersex Q (transversal gynan- dromorphs). T h e /^ \ / division between the sexual regions is ; /I I seldom maintained throughout the Ij f^^ P whole body. Often the sexual charac- \L#*^^*^'i'^"/0 M ters are irregularly
Text Appearing After Image:
arranged ism). arities are traceable the development of the exact nature of has not been ascer- be understood until g y n a n d r o m o r p h - All these peculi- to disturbances in the egg or larva, but these disturbances tained, nor will thev A QYNANDROMORPHOUS ANT (Epipheidole inquilina Wheeler) The left half of the specimen is (•(; ^g pOSSlblC tO prO- moslly male, and the right half is . duce such mixed mostly female. The figure is greatly animals experiment- ally. They may re- '"'^^- suit from the fusion of two eggs originally of different sexes, to form a single animal; or they may arise from a single Q'g'g in which the fertilization has taken an abnormal course; or again they may perhaps be pro- duced by nutritional disturbances in different parts of the young larva or pupa. Many gynandromorphs, l)ut not all, are also hermaphroditic; that is, they have both male and female reproductive organs corresponding with the parts of the body contributed by the two sexes. In cases, however, where the whole abdomen is of one sex, the animal is properly a male or female, though its head may i6

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Flickr tags
InfoField
  • bookid:americanmuseumjo04amer
  • bookyear:c1900-[1918]
  • bookdecade:c190
  • bookcentury:c100
  • bookauthor:American_Museum_of_Natural_History
  • booksubject:Natural_history
  • bookpublisher:New_York_American_Museum_of_Natural_History
  • bookcontributor:American_Museum_of_Natural_History_Library
  • booksponsor:Biodiversity_Heritage_Library
  • bookleafnumber:38
  • bookcollection:biodiversity
  • bookcollection:americanmuseumnaturalhistory
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
27 May 2015



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