A cytological survery of certain American species of the genus Gryllus Linnaeus, 1758, formerly Acheta, Fabricus, 1775, (Orthoptera: Gryllidae) and their hybrids.
Mayr, Linsley and Usinger (1953) have defined three levels of taxonomic study; the first or alpha level dealing with the recognition and description of new species, the second or beta level dealing with the arrangements of these described species into the hierarchical system and the third or gamma l...
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| Format: | Others |
| Language: | en |
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McGill University
1960
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| Online Access: | http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112908 |