Posts Tagged ‘Museum Of Comparative Zoology’

A Place in the Sun part 2

Saturday, February 6th, 2010

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For a better understanding and another opinion of the relationship between what layman call “Iguana delicatissima” and “rhinolopha,” read James D. Lazell Jr., 1973, “The Lizard Genus Iguana in the Lesser Antilles,” Bulletin of the Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, Volume 145, Number 1. Lazell is satisfied that there are two species, I iguana and I. delicatissima, and further that “rhinolopha” is not a valid species but rather that some iguanas just happen to have horn-like scales on their snouts. Dr. Lazell goes on in this 28-page illustrated dissertation to describe not only the structural features of these animals but also their natural history, and he makes an important point for pet keepers by remarking that he has seen wild iguanas eating birds’ eggs and carrion, but never papaya or citrus fruits.

The name iguana according to the eleventh edition of the Encyclopedia Britannica is derived from the Spanish equivalent of the Carib Indian name for these lizards, iwana. This name – iguana – was applied in 1825 to a fossil of a giant extinct herbivorous reptile, the Iguanodon. The Iguanodon, an extinct contemporary of the dinosaurs, and its modern namesake have in common a peculiar form of tooth, being round at the root and blade-like with serrated edges toward the tip. The teeth are described as pleurodont – that is, they are fastened to the inner surface rather than the top edge of the lower jaw.

This business of systematically classifying iguanas gets sticky,  and with the aim of clarifying  the issue you might want to refer to the informal arrangement in the next chapter. Bear in mind that this chapter is primarily about the true iguana, Iguana iguana, and in passing we will make reference to the dozen or so typical iguanas.

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Scincidae

Saturday, May 2nd, 2009

Easily , the largestlizard family in numbers , species and range, skinks occur almost everywhere  a lizard can live or reside , except in the sea.  Skinks  are most unique among lizards in having a “secondary palate”.  Osteoderms are present.  Frontal bones distinct  except in the Feylininae , this subfamily ( often considered and actual full family in itself and is lineage). also lacks the jugal bone and is  vivaparous or oviparous.  Skinks have moveable eyelids , except for Ablepharis, which has an actual clear “spectacle”.   In addition the lizards formerly classified as the full family , Feyliniidae are now often included in the Scinidae by many most prominent herptologists;  this group includes forms lacking both functional power and eyelids.  Ear openings are usually present as is the power of “autonomy”.

Scales are usually smooth with a clear luster.  However some genera noteably Trachydosaurus and Tribolonotus have rough or kneeled scaled.  Many forms lack limbs or possess but one solitary pair, there may be five or fewer fingers.

On West Indian Iguanidae and on West Indian Scincidae in the … – By: Garman, Samuel, 1843-1927. Harvard University. Museum of Comparative Zoology Publication Info: [Salem, Mass. :sn],1887. Subjects: Iguanas, Skinks, West Indies Contributing Library: Smithsonian Institution Libraries Sponsor: …

Whats the Latin Name? – This thread is for anyone to add to the list of names, and add common latin names. What we will do, if you reply, we will copy and past your info onto the list, so we should end up with a full list of Lizards names, with there latin …

The Skinks (Family Scincidae) – An Overview of the Largest Lizard … – Introduction The family Scincidae, the skinks, contains over 1200 species – more than any other family of lizards. Skinks range throughout the Eastern and.

Pacific Science, vol. 63, no. 2 (2009) – Losing the Bounty? Investigating Species Richness in Isolated Freshwater Ecosystems of Oceania Robert Schabetsberger, Gabriele Drozdowski, Eugen Rott, Rupert Lenzenweger, Christian D. Jersabek, Frank Fiers, Walter Traunspurger, …

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Probably the most problematic genus has been Lygosoma practically world wide in distribution and having all stages of limb development.  The genus Eumeces in common in the United States and the golden Great Plains skink, E. obsoleta , a foot long lizard in the central states.  Australia’s Trachydosaurus rugosus looks like an animated version of pine cones, having large scales and a tail resembling the head.  The family giant is Corucia zebtra , a two foot long tree dweller of the Solomon Islands.

Skinks are active , almost nervous lizards.  They hide under large boulders , or in other inaccessible spots but sometimes , if not often, take to hilly wood slides.  They can be said to be mainly insectivorous but many also eat or consume plants.

Comment on “The Speckled Band.” by Steve – I looked on the Wikipedia page this morning, and apparently I had every reason to be afraid of things running up and down bell cords during the night: — The herpetologist Laurence Monroe Klauber proposed a theory that the swamp adder …

Scincus – <img src=”http://www.shutterpoint.com/photos/T/20090112%5F024610%5F1%20%2876%29%5Fthum%2Ejpg” align=left border=0 hspace=4 alt=”The Eastern skink (Scincus mitranus) …

Something From Squamata, Archosauria, and Lissamphibia – Here are just a few stragglers that I also found near the fish hatchery, in Moncks Corner, SC . The lizard is a ground skink, Family Scincidae, Scincella lateralis. The snake is a black racer, Coluber constrictor (black with white on …

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