Frog-egg eating tadpoles of Anotheca coronata (Stejneger) (Salientia, Hylidae)
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چکیده
منابع مشابه
The tadpoles of Hyla rufitela (Anura: Hylidae).
The validity of the published description of Hyla rufitela is questioned because the origin of the described tadpoles does not correspond to the distribution of this species. The present description, based on tadpoles that were hatched from two egg masses from the Caribbean lowland of Costa Rica, includes tadpoles raised to adult frogs to verify the species. The newly described tadpoles differ ...
متن کاملOsmotic Regulation in the Tadpoles of the Crab-eating Frog (rana Cancrivora)
The major features of the osmoregulatory mechanisms which form the basis for the unusually great salinity tolerance of the adults of the southeast Asian crab-eating frog (Rana cancrivora) have been described by Gordon, Schmidt-Nielsen & Kelly (1961) and by Schmidt-Nielsen & Lee (1962). Adults of this species respond to high external salinities with an increase in internal osmotic concentration,...
متن کاملSpargana in the Neotropical frog Hypsiboas pulchellus (Hylidae) from Uruguay
We report the first record of parasitic larval tapeworms of the genus Spirometra (sparganum) in the frog Hypsiboas pulchellus. A total of 139 frogs were collected in Uruguay, and two of them presented a single sparganum (1.4%). One sparganum was found free into the coelomic cavity, and the other was located under the skin and in the coelomic cavity. The relevance of this finding in Uruguayan am...
متن کاملSingle and interactive effects of malathion, overwintered green frog tadpoles, and cyanobacteria on gray treefrog tadpoles.
Amphibian population declines around the world are associated with invasive species, pesticides, pathogens, habitat destruction, or a combination of factors. Because contamination is widespread, it represents a relevant environmental stress that can affect the ability of organisms to deal with other factors present in the environment. We examined the effects of the insecticide malathion, larger...
متن کاملEffect of hypophysectomy on sex transformation in frog tadpoles.
This work aims to clarify whether the pars distalis of the pituitary gland plays an indispensable role in heat-induced sex transformation from ovaries to testes. Intact and hypophysectomized tadpoles of the sex semidifferentiated race of Rana catesbeiana were reared in water at 20•Ž as controls and at 30•Ž as experimentals. The results showed that ovaries of the hypophysectomized tadpoles were ...
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ژورنال
عنوان ژورنال: The University of Kansas science bulletin.
سال: 1954
ISSN: 0022-8850
DOI: 10.5962/bhl.part.24626