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The Anguinomorpha contains five families of lizards that exhibit body elongation and, in many cases, limb-reduction, although not all elongate, reduced-limbed lizards belong to this group and not all anguinomorphs are elongate with reduced limbs, many possessing four well developed pentadactyl limbs. The families may be divided into an unnamed clade containing the Anniellidae and Anguidae, the Xenosauridae, and the Varanoidea, a superfamily containing the Helodermatidae and Varanidae, but there are alternative phylogenies available. The Anniellidae-Anguidae contain 15 genera and 119 species, the Xenosauridae two genera and seven species, and the Varanoidea, three genera and 76 species. The Anniellidae and Xenosauridae are not currently represented in the photo library.

Photographic locality. Wherever possible precidence is given to wild specimens from known localitions, wherein the 'photographic locality' relates to the origin of the photographed specimens, rather than the taxon's entire range. The only exceptions are indicated by (captive) or (preserved specimen). These are either specimens photographed in captivity, where the locality given is a general distribution for the taxon, or preserved specimens photographed as biological voucher specimens.

Column D1. Digitized images - the bulk of the library consists of 35mm transparencies (mostly Kodachrome or Velvia) which are gradually being digitized [using Nikon CoolScan 4000 or Plustek OpticFilm 7600i] and stored on hard disc. 'X' indicates that digitized images are available, '[]' indicates that the transparencies of this taxon have yet to be digitized.

Column D2. Digital images - since 2005 digital images have also been taken [using Canon EOS 30D, 40D or 7D]. 'X' indicates that digital images are available in addition to digitized images for this taxon.


The Anguidae contains three subfamilies: the slow worms and glass lizards of the Anguidae (three genera, 16 species), alligator lizards of the Gerrhonotinae (five genera, 52 species) and galliwasps of the Diploglossidae (six genera, 50 species). The Anguidae is represented in the photo library by three genera and five species, while the Gerrhonotinae is represented by two species from the same genus.

Slow worms & glass lizards
Alligator lizards
Anguis fragilis
Wareham, Purbeck, Dorset, UK
SAN DIEGO ALLIGATOR LIZARD Elgaria multicarinata webbii
Southwest USA
click on images to enlarge
Anguinae Slow worms & glass lizards Photograph locality:
Anguis fragilis fragilis European slow worm UK (Dorset, Worcs) X X
Anguis graeca Balkan slow worm Croatia (Zagreb)   X
Ophisaurus attenuatus longicaudus Eastern slender glass lizard USA (captive) X  
Ophisaurus ventralis Eastern glass lizard USA (captive) X  
Pseudopus apodus thracius Thracian scheltopusik Greece (Thrace) X X
Gerrhonotinae Alligator lizards      
Elgaria kingii Madrean alligator lizard USA (Arizona) X X
Elgaria multicarinata webbii San Diego alligator lizard USA (Guam captive) X  


The venomous Helodermatidae contains only two living species and both are represented in the photo library but two subspecies each.

Gila monster & beaded lizard
RIO FUERTE BEADED LIZARD Heloderma horridum exasperatum
Sonora, Mexico
click on image to enlarge 
    Photograph locality:
Heloderma horridum horridum Mexican beaded lizard Mexico (captive) X  
Heloderma horridum exasperatum Rio Fuerte beaded lizard Mexico (Sonora) X  
Heloderma suspectum suspectum Reticulated Gila monster USA (Arizona), Mexico (Sonora) X  
Heloderma suspectum cinctum Banded Gila monster USA (captive) X  



The Varanidae contains two genera, the monotypic Lanthanotidae from Borneo and the diverse Varanidae from the tropical Old World. The Varanidae contains 73 species divided between nine subgenera. The photo librarycomprises 25 species (28 taxa) from eight of the nine subgenera.


Monitor lizards
Varanus salvadori
Moitaka, NCD
, Papua New Guinea
click on image to enlarge 
Empagusia   Photograph locality:
Varanus bengalensis Bengal monitor lizard India (W.Bengal), Sri Lanka X  
Varanus doreanus Blue-tailed monitor lizard PNG (Western) X  
Varanus indicus Pacific mangrove monitor lizard PNG (Western, Madang) X  
Varanus jobiensis Peach-throat monitor lizard PNG (captive) X  
Varanus prasinus prasinus Emerald tree monitor lizard PNG (Central, Madang) X  
Varanus acanthurus acanthurus Northern ridge-tailed monitor lizard Australia (WA) X  
Varanus acanthurus brachyurus Inland ridge-tailed monitor lizard Australia (WA) X  
Varanus gilleni Pigmy mulga monitor lizard Australia (captive) X  
Varanus glauerti Kimberley rock monitor lizard Australia (WA) X  
Varanus glebopalma Black-palmed monitor lizard Australia (WA) X  
Varanus scalaris Spotted tree monitor lizard Australia (captive) X  
Varanus similis Spotted tree monitor lizard Australia (captive) X  
Varanus timorensis Timor monitor lizard Timor-Leste X X
Varanus salvadori Papuan monitor lizard PNG (Central) X  
Varanus albigularis albigularis Southern white-throated monitor lizard S.Africa (Limpopo), Namibia X  
Varanus exanthematicus Bosc monitor lizard Africa (captive) X  
Varanus niloticus Nile monitor lizard Senegal, Mauritania X  
Varanus ornatus Ornate monitor lizard Cameroon (Southwest) X  
Varanus yemenensis Yemen monitor lizard UAE (captive) X X
Varanus salvator salvator Sri Lankan water monitor lizard Sri Lanka X  
Varanus salvator bivittatus Sunda Islands water monitor lizard Indonesia (Krakatau) X  
Varanus salvator macromaculatus Southeast Asian water monitor lizard Borneo (Sarawak), India (Orissa), Thailand X  
Varanus sp. Atáuro monitor lizard Timor-Leste X X
Varanus giganteus Perentie Australia (captive) X  
Varanus giganteus Perentie Australia (captive) X  
Varanus komodoensis Komodo dragon Indonesia (Komodo) X  
Varanus mertensi Merten's water monitor lizard Australia (WA) X  
Varanus panoptes horni New Guinea argus monitor lizard PNG (Central, Western) X  
Varanus spenceri Spencer's monitor lizard Australia (captive) X  
Varanus varius Lace monitor lizard Australia (captive) X