last update: globalnames score not available match type not available. author_text: (Tschudi, ) display_name: Alsophis elegans. Expert(s). Expert: Notes: Reference for: Other Source(s). Source: Snake Species of the World, vol. undetermined, manuscript (version ). Acquired: Cryptocercus matilei Grandcolas, in GBIF Secretariat (). GBIF Backbone Taxonomy. Checklist dataset accessed via.
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Taxonomy Details: Alsophis elegans
However, a more detailed phylogenetic analysis of the newly extended genus Philodryas may show the necessity of a partition of the latter with some of the generic names synonymized here being applicable to the recovered monophyletic subunits. Lygophis Fitzinger, resurrected Type species: Morphological variation in Thermophis Malnate Serpentes: However, similarly to our reasoning above for the recognized tribes, we decided to alsoohis these two genera in separate tribes because they do not share any known morphological synapomorphy.
Partition of the genus Natrix, with preliminary observations on evolutionary trends in natricine snakes. Catalogue of snakes in the British Museum.
ADW: Alsophis elegans: CLASSIFICATION
Romer formally recognized Colubroidea as a superfamily and his use was followed in most subsequent works. Academic Press, New York, p. Homalopsidae inferred from mitochondrial and nuclear DNA sequences. The caenophidian tree was rooted using a boine, Boa constrictor, as an outgroup.
Taeniophallus genus [ more like this term ] [ including rank ] [ from this source ]. Some other molecular studies e.
Our results show that Alsophis is polyphyletic, with the species of western Peru A. Zaher discussed the variation regarding the sulcus spermaticus in colubroid snakes.
We avoided suggesting new taxonomic arrangements for nodes that are poorly supported in our molecular analysis and that lack any putative morphological synapomorphy. Classification Kingdom Animalia animals Animalia: Some of these contributions were designed to evaluate higher-level relationships, while others focus on more restricted assemblages e.
This approach simultaneously reduces the unnecessary proliferation of formal taxonomic names and flags these taxa for further study. We also include in Lygophis three additional species, which also meet the generic concept of Lygophis Fitzinger, adopted here see Moura-Leite, A row of enlarged lateral spines on each side of the hemipenis; hemipenial lobes with distinct differentially ornamented regions a sulcate capitulum and an asulcate nude or weakly calyculate region Zaher, Ecology, Evolution, and Snakebite.
Bulletin of the Museum of Comparative Zoology, 2: Our analysis reveals very strong support for several previously known Xenodontinae tribes Zaher, Our clade 16 has also been retrieved again with poor support by Vidal et al. Our c-mos sequences had eelegans indel of three base pairs at positions in Acrochordus, Bitis, Calamaria, Colubrinae, Natricinae, Pseudoxenodon, and Xenodontinae; this indel is equivalent to that reported in these same groups by Lawson et al.
University of Chicago Press, Aleophis.
slegans Journal of Herpetology 33 1: More recently, molecular studies have provided new insights on the higher-level phylogeny of caenophidians, corroborating some long-held views and suggesting new hypotheses for evaluation e. Lobular crotch and medial surface of hemipenial lobes ornamented with well-developed, horizontally directed papillate flounces; asulcate surfaces of lobes completely nude and bearing a large overhanging edge of the capitulum; expanded papillate circular area present on the lobular crotch.
Alsophis elegans – Serpiente corredora elegante -Elegant racer –
The broad pattern of relationships indicated by our analysis includes the following main points. However, in a few cases we recognize a clade taxonomically for which no morphological synapomorphies are known; we discuss these at the appropriate places in the text.
Reptilien und Batrachier aus Peru und Bolivien. Alsophis elegans species [ more like this term ] [ including rank ] [ from this source ]. Services on Demand Journal. Our analysis suggests some taxonomic changes within xenodontines, including new taxonomy for Alsophis elegans, Liophis amaraliand further taxonomic changes within Xenodontini and the West Indian radiation of xenodontines.
Alsophis elegans (Tschudi, 1845)
Although this analysis forms the most comprehensive sampling of caenophidian species analyzed thus far, ours has the same deficiency of other studies: Parsimony analysis under direct optimization is distinct from most molecular phylogenetic analyses of snakes done so far, which have used model-based analyses e. Catalogue of Colubrine snakes of the British Museum. Sarcopterygii class [ more like this term ] [ including rank ] [ from this source ]. We here resurrect Lygophis Fitzinger, to include these species, which were previously allocated to Liophis Wagler, On the other hand, only few morphological complexes have been analyzed thoroughly within snakes, and the paucity of broadly sampled morphological characters has prevented the compilation of a large morphological data matrix.