Taxonomic studies on the hydras of North America. 6, Description of Hydra hymanae, new species. American Museum novitates ; no. 1423

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dc.contributor.authorHadley, Charles Elmer, 1893-en_US
dc.contributor.authorForrest, Helen, zoologist.en_US
dc.date.accessioned2005-10-06T17:33:43Z
dc.date.available2005-10-06T17:33:43Z
dc.date.issued1949en_US
dc.description14 p. : ill. ; 24 cm.en_US
dc.descriptionIncludes bibliographical references (p. 13-14).en_US
dc.description.abstract"Hydra hymanae, new species, is a hydra of medium size, with short tentacles. It is usually found in very rapidly moving water. Its identifying characters are: column 7 to 12 mm. in length, not differentiated into body and stalk but with base bent in the form of a hook; habit of standing partly contracted, with the main portion of the column approximately parallel with the substratum; tentacles usually six in number, about one-half the length of the column, extended in drooping positions; broadly oval, large glutinants with a beak-like projection at the pointed end; unusually large penetrants and volvents; hermaphroditic; testes few, roughly hemispherical, with or without nipples; season of sexual activity October, Novemeber, December; embryo flattened and enclosed in a plano-convex, spined theca attached to the substratum; habitat occasionally still water, more often rapidly moving water. The type locality is Little Falls, New Jersey. Other localities are Verona, Delawanna, Lake Valhalla, all in New Jersey"--P. 13.en_US
dc.format.extent1158721 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/4312
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 1423en_US
dc.subject.lccQL1 .A436 no.1423, 1949en_US
dc.subject.lcshHydra hymanae -- Classification.en_US
dc.subject.lcshHydra -- New Jersey -- Classification.en_US
dc.subject.lcshCnidaria -- New Jersey -- Classification.en_US
dc.titleTaxonomic studies on the hydras of North America. 6, Description of Hydra hymanae, new species. American Museum novitates ; no. 1423en_US
dc.title.alternativeDescription of Hydra hymanaeen_US
dc.title.alternativeHydras of North Americaen_US
dc.typetexten_US

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