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![distribution map: vertical lines – distribution of Boa constrictor spp.; transverse lines – distribution of Eunectes notaeus; crossed markings – overlapping distribution range of both species [modified from figures 7.2 and 8.2 of Reed & RoddA (2009)].](profile/Ivan-Ineich/publication/266412835/figure/fig1/AS:392229421109255@1470526189534/distribution-map-vertical-lines-distribution-of-Boa-constrictor-spp-transverse-lines.png)
distribution map: vertical lines – distribution of Boa constrictor spp.; transverse lines – distribution of Eunectes notaeus; crossed markings – overlapping distribution range of both species [modified from figures 7.2 and 8.2 of Reed & RoddA (2009)].
Source publication
in recent years an increasing number of studies have identified
cases of interspecific hybrids in reptiles, but intergeneric hybridisation,
especially in snakes, is still only rarely known. in the current study we used
several methods, sem recordings, morphometrics, and both mitochondrial
and nuclear gene analyses, to identify and analyse an interg...
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The Boa constrictor is one of the most common reptiles bred in captivity. To achieve a successful breeding season, thorough knowledge of the females’ reproductive activity is necessary. In this regard, information on the Boa constrictor is still rather scarce. The aim of the present study was to monitor the ovarian activity and the embryonic develo...
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Citations
... More criteria can be found in Breuil (2013). Hybrids also were identified following the same morphological criteria; as in other squamate hybrids (see Ernst et al., 2014), they usually present intermediate states for all the characters of the two parental species (F1 hybrids) or a patchwork of I. delicatissima and I. iguana character states (post F1 hybrids) (Breuil, 2013). Following those characters, two of our hybrids (MNHN-UMR 7209-529 and MNHN-UMR 7209-715) could be F1 hybrids and the others post F1 hybrids (Fig. 1). ...
The origins of the two iguana species (Iguana delicatissima [Lesser Antillean Iguana] and Iguana iguana [Green Iguana]) occurring today in the Lesser Antilles are frequently questioned using mostly historical and genetic data. Osteological remains of iguanas are common in archaeological and paleontological deposits in the Lesser Antilles, however, and they could be important for understanding the past
colonization processes of these two iguana species and subsequent sympatry. Unfortunately, although numerous questions exist about the past occurrence of those two species and their respective arrival dates, no osteological study has led to proper identification of subfossil iguana skeletal elements. Here we present a series of characters that allow for distinguishing the two species using isolated bones and emphasize the reliability of each recognized specific character. We also provide some comments about skeletal morphology of hybrids between both species and their identification based on osteology.
