Dracaena guianensis DAUDIN, 1802
Can you confirm these amateur observations of Dracaena guianensis?
|Higher Taxa||Teiidae, Tupinambinae, Gymnophthalmoidea, Sauria, Squamata (lizards)|
|Common Names||Northern Caiman Lizard, Guyana Caiman Lizard|
|Synonym||Dracaena guianensis DAUDIN 1802: 421|
Teius crocodilurus MERREM 1820: 62
? Thorictes Dracaena — DUMÉRIL & BIBRON 1839: 56
Dracaena guianensis — BOULENGER 1885: 338
Dracaena guianensis — VANZOLINI & VALENCIA 1966: 15
Dracaena guianensis — PETERS et al. 1970: 111
Dracaena guianensis — MASSARY et al. 2000
|Distribution||Brazil (Amazonas, Maranhao, Amapa, Acre)|
Colombia, Ecuador, Peru, Guyana ?, Surinam ?, French Guiana
Type locality: “Cayenne” [French Guiana] (not “Amapa” fide MASSARY et al. 2000). Map legend:
- Region according to the TDWG standard, not a precise distribution map.
NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
|Types||Holotype: MNHN = MHNP 8385 and RMNH Leiden|
|Comment||Type species: Dracaena guianensis Daudin is the type species of the genus Dracaena Daudin 1801.|
Diagnosis (genus): Dracaena is the only genus of Teiidae with subterminal lenticular scale organs positioned atop the prominently keeled ventrals and a complete interangular sulcus containing small granular scales. The combination of two loreals, a laterally compressed tail, and heterogeneous dorsals consisting of large keeled scales surrounded by smaller scales immediately distinguishes Dracaena from all other Teiidae.
Distribution: Apparently not present in NE-Brazil. Probably also in Bolivia (fide LANGSTROTH 2005). Reports from French Guiana may be erroneous (HOOGMOED & LESCURE 1975).
Synonymy mostly after Peters et al. 1970. DAUDIN apparently described the same specimen that has been mentioned by LACÉPÈDE (1788) as Lacerta Dracoena (fide PETERS & DONOSO-BARROS 1970).
|Etymology||Etymology (genus): The generic name Dracaena is the Latin noun Dracaena meaning dragon or, less commonly, lizard. As discussed recently by Massary et al. (2000), Daudin (1801) based his description on the figure titled “La dragonne” and description of Lacerta dracæna by La Cepède (1788). Lacerta Dracaena also appears in Gmelin’s (1789) list along with a brief Latin description. Gmelin’s name would appear to be an available senior synonym of D. guianensis, albeit one that should be suppressed since it has not been used since the late 1700s.|
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