| 词条 | Blanford's rock agama |
| 释义 |
| name = Blanford's rock agama | status = | image = Blanford's Rock Agama Psammophilus blanfordanus in Hyderabad, AP W IMG 8018.jpg | image_caption = Psammophis blanfordanus, in Hyderabad, Andhra Pradesh, India | genus = Psammophilus | species = blanfordanus | authority = (Stoliczka, 1871)[1] | synonyms = *Charasia blanfordana {{small|Stoliczka, 1871}}
| synonyms_ref =[2] | range_map = | range_map_caption = }} Blanford's rock agama (Psammophilus blanfordanus) is species of lizard in the family Agamidae. The species is endemic to Peninsular India. One of two species in the genus, P. blanfordanus is found mainly to the east of the distribution of P. dorsalis. Unlike the other species, the male P. blanfordanus in breeding season has the red body color restricted to the head and lacks the broad dorsal stripe. EtymologyBoth the specific name, blanfordanus, and the common name, Blanford's rock agama, are in honor of English naturalist William Thomas Blanford (1832–1905), member of the Geological Survey of India.[3] DescriptionAlthough very similar to P. dorsalis, a specimen of P. blanfordanus can be separated by several features. P. blanfordanus has a deeper fold on the front of the humerus. The scales on the body are a little larger, and number from 80 to 100 round the middle of the body. The dorsal scales appear keeled and imbricated. When the hind leg is stretched forward and held along the body, it reaches the eye or extends beyond it. Often, a small spine is found behind the edge of the brow-ridge of the eye, and a few enlarged scales are scattered on the sides. Young lizards are olive-brown above, spotted or marbled with brown very similar to the female, but often have a series of large, lozenge-shaped, dark brown spots with pale centres on the back and tail. The adult male is much like P. dorsalis, but in the summer breeding season, the head and anterior part of the body of the males become scarlet or red while the posterior parts are nearly black. P. blanfordanus is found mainly on rocks. The male displays by head nodding.[4]Snout-to-vent length (SVL) is about {{convert|10|cm|in|abbr=on}}, and the tail is about {{convert|20|cm|in|abbr=on}} long. Females are slightly smaller than males. BehaviourP. blanfordanus spends most of its time resting or basking under the sun. Excess heat causes it to rest inside water holes to decrease overall body temperature. DistributionP. blanfordanus is common on many of the hills from Chota Nagpur, as high as Parasnath Hill to {{convert|4,500|ft|m}}, Madhya Pradesh and extending south along the Godavari Districts, hills of the Eastern Ghats. The southernmost record appears to be Talayar in Travancore, where a specimen was collected by Harold S. Ferguson at {{convert|7,000|ft|m}}.[5]References1. ^Stoliczka F (1871). "Notes on new or little known Indian Lizards". Proc. Asiatic Soc. Bengal 1871:192–195. (Charasia blanfordana, new species, p. 194). 2. ^"Psammophilus blanfordanus ". The Reptile Database. www.reptile-database.org. 3. ^Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. {{ISBN|978-1-4214-0135-5}}. (Psammophilus blanfordanus, p. 27). 4. ^{{cite book|author=Smith MA|authorlink=Malcolm Arthur Smith|year=1935|title=The Fauna of British India, Including Ceylon and Burma. Reptilia and Amphibia. Vol. II.—Sauria.|publisher=London: Secretary of State for India in Council. (Taylor and Francis, printers)|url=https://archive.org/stream/FBISmithReptiles2/smith2#page/n225/mode/1up}} xiii + 440 pp. + Plate I + 2 maps. (Psammophilus blanfordanus, new combination, p. 210). 5. ^Boulenger GA (1891). "Description of a New Species of Lizard obtained by Mr. H. S. Ferguson in Travancore, Southern India". Journal of the Bombay Natural History Society 6 (4): 449. (Lygosoma subcæruleum, new species). Further reading
External links{{commons category|Psammophilus blanfordanus}}{{Taxonbar|from=Q3016524}} 2 : Agamidae|Reptiles described in 1871 |
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