hemipenis


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hemipenis

[¦he·mē′pē·nəs]
(vertebrate zoology)
Either of a pair of nonerectile, evertible sacs that lie on the floor of the cloaca in snakes and lizards; used as intromittent organs.
References in periodicals archive ?
Eventually copulation is done when female raises its tail and allows male snake to put its hemipenis (which are two in number) (Acharjyo and Misra 1976).
Veterinary care of reptiles is usually necessary due to trauma, dystocia, coelomitis, pneumonia, cloaca prolapse, oviduct, or hemipenis (BARTEN, 2006), all culminating in increased pressure within the coelomic cavity.
Comprende la mayoria de las serpientes inofensivas; a base de ciertas caracteristicas anatomicas del hemipenis (doble como en los Sauria), esta dividida en varias subfamilias, entre ellas las Colubrinae y Xenodontinae.
Enforcement agencies have discovered that now the big monitor lizard ( genus Varanus) -- found across deserts, forests and coastlines of the country -- is being poached for its hemipenis ( sexual organ), which is sold as a lucky charm for virility and fertility in men.
Sex was determined by tail base shape and hemipenis eversion or, in doubtful cases, by dissection.
We recorded sex of individuals if possible based on external morphological characteristics or cloacal probing for the presence or absence of a hemipenis.
In snakes and lacertilians, exclusive paired structures developed along the lateral wall of the cloaca - the hemipenis, regarded as an autapomorphy of that group (RIEPPEL, 2000; POUGH et al., 2003).
Snakes were weighed to the nearest 1 g with a digital balance and sex was determined by everting the hemipenis or visual inspection.
In general, courtship in snakes involves an initial approach, juxtaposition of male's and female's cloaca and the insertion of one hemipenis, a pattern that is enriched by a diversity of behaviors (e.g.
bocagei as a subspecific form) are similar in having the outer sulcal lips of the hemipenis free and that they differed in this respect from all other Podarcis species.