Xiphosurus
| Xiphosurus | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Xiphosurus barbatus |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Xiphosurus | ||||||||||||
| Fitzinger , 1826 |
Xiphosurus is a genus of medium-sized lizards from the group of iguanas thatoccursin the Greater Antilles . The generic name is derived from the Greek and refers to the characteristic back crest that extends to the tail ("xiphos" = sword + "oura" = tail).
features
Xiphosurus species are medium-sized lizards, usually of a brownish, greyish or green color.
The monophyly of the genus is supported by 104 molecular biological apomorphies .
The morphological properties of the genus include the parietal eye in the parietal bone or in the bone seam between the parietal bone and frontal bone , the arrow-shaped interclavicle, a bone that connects the actual clavicle with the breastbone (sternum), 3 or 4 lumbar vertebrae and 6 to 8 caudal vertebrae in front the first vertebra capable of autotomy . The caudal vertebrae in front of the first vertebra capable of autotomy have transverse processes , those behind do not. The post frontal , a small, paired cover bone of the skull roof, is present. Palatine teeth may be present or absent. The splenial bone, a small bone in the lower jaw of amphibians and reptiles, can be relatively large, reduced to a splinter, or absent. There is no gender dimorphism , i. H. Males and females look alike.
distribution
Xiphosurus species are found on the islands of Puerto Rico and Hispaniola ( Cuba ).
.jpg)
species
The genus comprises a total of eleven species, which are grouped into two species.
-
Xiphosurus chamaeleonides species group, Cuba
- Xiphosurus agueroi (Díaz, Navarro, & Garrido, 1998)
- Xiphosurus barbatus (Garrido, 1982)
- Xiphosurus chamaeleonides (C. Duméril & Bibron, 1837)
- Xiphosurus guamuhaya (Garrido, Peréz-Beato, & Moreno, 1991)
- Xiphosurus porcus (Cope, 1864)
-
Xiphosurus cuvieri species group, Hispaniola, Puerto Rico, Culebra
- Xiphosurus baleatus (Cope, 1864)
- Xiphosurus barahonae (Williams, 1962)
- Xiphosurus cuvieri (Merrem, 1820)
- Xiphosurus eugenegrahami (Schwartz, 1978)
- Xiphosurus ricordii (C. Duméril & Bibron, 1837)
- Xiphosurus roosevelti (Grant, 1931)
literature
- Kirsten E. Nicholson, Brian I. Crother, Craig Guyer, Jay M. Savage : It is time for a new classification of anoles (Squamata: Dactyloidae) (= Zootaxa . 3477). Magnolia Press, Auckland 2012, ISBN 978-1-77557-010-3 , digital version (PDF; 8.24 MB) .