iguania

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“Fan-throated Lizard” (Sitana ponticeriana)

…a species of agamid lizard that occurs in India, Sri Lanka and parts of Pakistan. Fan-throated lizards typically inhabit sandy coastal areas and open areas in forests and scrublands. They are primarily terrestrial but are known to inhabit trees as well. Like some other lizards S. ponticeriana possesses a brightly colored dewlap, which is used primarily in courtship but can also be used in communication and defense.

Classification

Animalia-Chordata-Reptilia-Lacertilia-Iguania-Agamidae-Agaminae-Sitana-S. ponticeriana

Images: J.M. Garg and Dr. Caesar Photography

The long-nosed leopard lizard, Gambelia wislizenii, is a relatively large lizard ranging from 3¼ to 5¾ inches (8.2-14.6 cm) snout-vent length (SVL). It has a large head, long nose, and a long round tail that can be longer than its body. It is closely related to the “blunt-nosed leopard lizard” which closely resembles the long-nosed leopard lizard in body proportions, but has a conspicuously blunt snout. They were once considered part of the genus Crotaphytus. They are endangered because of habitat destruction [Wiki]

Long nosed Leopard Lizard by ~eaross

Lesser Antillean Iguana (Iguana delicatissma)

…a large species of aboreal Iguana (Iguanidae) which is endemic to the island chain of the Lesser Antilles in the Caribbean. Lesser Antillean iguanas typically inhabit scrub woodland, mangroves, and rainforests where they will feed on leaves, flowers, fruit and other plant material. I. delicatissma  is fairly similar to its more popular cousin the green iguana (I. iguana) but can be distinguished by its more blocky, shortened face, the lack of a striped pattern along its tail, and the lack of  a large round scale below its ear holes. 

Currently Iguana delicatissma is listed as endangered by the IUCN, as it faces threats from hunting, habitat loss,  the introduction of predators, and even the introduction of the other member of its genus I. iguana which directly competes with I. delicatissma and is known to hybridize with it. 

Classification

Animalia-Chordata-Reptilia-Squamata-Iguania-Iguanidae-Iguana-I. delicatissima

Image: Postdlf

Sri Lankan Kangaroo Lizard (Otocryptis wiegmanni) - male | ©Madhawa Karunaratne   (Sinharaja World Heritage Site, Sri Lanka)

Known as the Brown-patched kangaroo lizard, Wiegmann’s Agama, and Sri Lankan kangaroo lizard, Otocryptis wiegmanni (Agamidae - Draconinae) is on of the 15 species of agamid lizards endemic to Sri Lanka.

This lizard has a complex pattern of territorial behavior, consisting of five steps which include: attacking, appalling, struggling, savaging and chasing.

[Source]

Made with Flickr

Balsas Armed Lizard (Ctenosaura clarki)

…Also known as the Michoacan Dwarf Spiny-tailed Iguana or nopiche the Balsas armed lizard is a species of iguana (Iguanidae) which is endemic to the Balsas dry forests in the state of Michoacan in western Mexico. C. clarki is typically an semi-arboreal species, occurring in areas with an abundance of tree cacti.

Currently Ctenosaura clarki is listed as Vulnerable by the IUCN, as it faces threats from habitat loss and collection for the international pet trade. 

Classification

Animalia-Chordata-Reptilia-Squamata-Lacertilia-Iguanidae-Ctenosaura-C. clarki

Image:  ©Javier Alvarado-Diaz

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Peninsular Rock Agama (Pasmmophilus dorsalis)

Also known as the South Indian Rock Agama, the Peninsular Rock Agama is a species of Agamid lizard that is native to southern India, specifically the Western Ghats, South Arcot and Nallamalai Hills. Peninsular rock agamas are typically found on bare rocks and feed mainly on insects.  During the breeding season male P. dorsalis will assume a bright red and black coloration in-order to attract females.

Classification

Animalia-Chordata-Reptilia-Squamata-Iguania-Agamidae-Psammophilus-P. dorsalis

Image(s): J.M. Garg

Sinai Agama - Jordan | ©Jasmine J.

The Sinai agama (Pseudotrapelus sinaitus, formerly Agama sinaita) is an agamid lizard found in arid areas of southeastern Libya, eastern Egypt, Israel and Palestine, Jordan, Syria, Saudi Arabia, the United Arab Emirates, Oman, eastern Sudan, Ethiopia, Eritrea, and Djibouti.

This lizard is generally a dull brown colour, but during the breeding season, the male turns bright blue, or sometimes just the head and throat turn blue with the other parts remaining brown.

[Source].

Gonocephalus grandis | ©Jeet Sukumaran   (Gombak, Malaysia)

Gonocephalus grandis (Agamidae) is known as the Great Anglehead Lizard.

These stunning agamid lizards can reach a total length up to 60 cm (males), and 52 cm (females).

The Great Anglehead Lizard occurs in southern Thailand, Peninsular Malaysia (including larger islands such as Penang and Tioman), Sumatra (including the Mentawai Islands) and Borneo. A separate population is also reported from southern Laos and Vietnam. The species is absent from Singapore.

[Source]

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A study of Saurian morphology: Lepidosauria (part 3)

Mosasaurs, formally grouped within the superfamily Mosasauridea, are an extinct group of marine reptiles which existed in Late Cretaceous. Their exact position in Squamata phylogenetic tree is still unknown, but newer researches suggested that they could be related to Varanoids (monitor lizards).

The last group covered in this post is collectively known as Iguania, which contains iguanas, chameleons, agamids, and New World lizards such and anoles.

Now that we’ve finished Lepidosauria, the last group for me to cover will be Ichthyosauromorpha. I might be a bit slow since my real life responsibilities are calling my name, but I’m just eager to finish this project once and for all asap!

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Tioman Anglehead (Gonocephalus tiomanensis) 

Top and bottom photos taken by Connor Butler - Tioman Island, Malaysia.

Allison’s Anole (Anolis allisoni)

Also sometimes known as the blue-headed anole, Allison’s anole is a species of anole (Anolis spp.) which is known to occur in Cuba, Honduras and several surrounding islands. Allison’s anoles are typically seen in the canopy and on the upper trunk of tall palm trees (typically coconut palm trees) where they will feed on a range of invertebrates which also inhabit the trees. 

Classification

Animalia-Chordata-Reptilia-Squamata-Iguania-Polychrotidae-Anolis-A. allisoni

Image: apes_abroad

Anolis porcus

Commonly called as Cope’s False Chameleon or Oriente Bearded Anole, Anolis porcus (Polychrotidae), Syn. Chamaeleolis porcus, is a species of anole endemic to Cuba, restricted to the vicinity of the city of Guantánamo, in the Guantánamo Province [1]. 

Like other members of the genus, Anolis porcus is morphologically among the most bizarre West Indian lizards. The genus is characterized by a prominent bony head casque, relatively large body size (up to 177 mm snout-vent length), proportionately short limbs, cryptic coloration, the ability to move its eyes independently, and lack of tail autotomy [2].

Photo credit: ©Mariska Boertiens

Coachella Valley Fringe-toed Lizard (Uma inornata)

…a species of fringe-toed lizard (Uma spp.) which is endemic to the state of California in the United States. Within California, the Coachella Valley fringe-toed lizard is restricted to habitats with fine, windblown sand deposits in the sandy plains of the Coachella Valley, Riverside County, California. U. inornata is very well adapted for live in the desert, it is noted for possessing a wedge-shaped nose which allows it to burrow through sand. It also has elongated scales which cover its ears to keep out sand. 

Classification

Animalia-Chordata-Reptilia-Squamata-Lacertilia-Iguania-Phrynosomatidae-Uma-U. inornata

Image: USFWS