Ceratophora
Encyclopedia
Ceratophora is a genus of agamid
lizards found in Sri Lanka
. The males have a horn on their snout
.
crest; a nuchal
crest present or absent. No gular sac; no gular fold. A large rostral appendage, at least in the males. No femoral
or preanal pores.
Agamidae
Agamids, lizards of the family Agamidae, include more than 300 species in Africa, Asia, Australia, and a few in Southern Europe. Many species are commonly called dragons or dragon lizards. Phylogenetically they may be sister to the Iguanidae, and have a similar appearance. Agamids usually have...
lizards found in Sri Lanka
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...
. The males have a horn on their snout
Snout
The snout, or muzzle, is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw.-Terminology:The term "muzzle", used as a noun, can be ambiguous...
.
Description
Tympanum hidden. Body more or less compressed, covered with unequal scales. No dorsalDorsum (biology)
In anatomy, the dorsum is the upper side of animals that typically run, fly, or swim in a horizontal position, and the back side of animals that walk upright. In vertebrates the dorsum contains the backbone. The term dorsal refers to anatomical structures that are either situated toward or grow...
crest; a nuchal
Nuchal lines
The nuchal lines are four curved lines on the external surface of the occipital bone:* The upper, often faintly marked, is named the highest nuchal line, but is sometimes referred to as the Mempin Line, and to it the galea aponeurotica is attached.* Below the highest nuchal line is the superior...
crest present or absent. No gular sac; no gular fold. A large rostral appendage, at least in the males. No femoral
Femoral
Femoral can refer to:* Femoral artery* Femoral vein* Femur* Femoral triangle* Femoral nerve...
or preanal pores.
Species
- Ceratophora asperaCeratophora aspera-Distribution:Range : Endemic to Sri LankaDistribution in Sri Lanka : In lowland Dipterocarp forests and secondary forests in the wet zone-Identification:...
- Ceratophora erdeleni
- Ceratophora karu
- Ceratophora stoddartii
- Ceratophora tennentii
Key to selected species
- a. Gular scales larger than the ventrals, smooth;lateral scales large, unequal, rostral appendage scaleless C. stoddartii
- b. Gular scales larger than the ventrals, feebly keeled,lateral scales large, equal; rostral appendage scaly C. tennentii
- c. Gular scales smaller than the ventrals, strongly keeled; lateral scales small; rostral appendage scaly C. aspera