40 



One of the Lizards was also regarded by Mr. Gray as forming a 

 new genus in the family of Geckos, which he characterized as fol- 

 lows, under the name of 



DlPLODACTYLUS. 



Squamce subconformes, minutse, lseves, abdominales paulo ma- 

 jores, caudales majores annulatae, labiales mediocres distinctsa, 

 tritms anterioribus utrinque multo majoribus, gulares nullfe. Cauda 

 cylindrica, ventricosa. Digiti 5, 5, simplices, subaequales, subcy- 

 lindrici, apicibus subdilatatis, subtiis bifidis, discis duobus carnosis 

 laevibus ovalibus obliquis; unguibus 5, 5, parvis, maxime retracti- 

 libus. Porijemorales nulli. 



This genus differs from Phyllodactylus, Gray, in the under sides 

 of the tips of the toes being furnished with two rather large oblong 

 tubercles, which are truncated at the tip, and form two oval disks 

 placed obliquely, one on each side of the claw, instead of having, 

 as in Phyllodactylus, two membranaceous scales. The scales of the 

 body are also uniform, while in that genus there is a series of larger 

 scales extending along the back. The species, a drawing of which 

 was exhibited, was named 



Diplodactyi.us vittatus. Dipl.fuscus, vitta dorsali longitu- 

 nali lata saturatiore ; lateribus testaceis, artubus, cauddque ma- 

 culis seriatisflavis marginatis. 



Hah. in Nova Hollandia. 



The length of the head and body is 2 inches ; that of the tail 1 J 

 inch. On each side of the body there are two rows of rather distant 

 small spots, which become larger on the upper surface of the tail ; 

 they are scattered on the limbs. 



The other Reptile described was a species of Tiliqua, the 



Tiliqua Cunninghami. Til. squamis superioribus carinato- 

 spinosis, carinis seriatis. 



Hab. in Nova Hollandia Orientali extratropica. 



This species is very distinct from all the rest of its genus, and 

 even of its family, on account of its carinated scales, which are suf- 

 ficiently prominent on the back and sides, but become more so on 

 the limbs, and still larger in size, although their series decrease in 

 number, as they approach the extremity of the tail. The colour is 

 pale brown, dotted with yellow above, and paler beneath, with ob- 

 scure darker spots. The head and body measure 8, and the tail 

 7, making a total length of 15 inches. 



Mr. Cunningham found this Lizard in a torpid state in a barren 

 sandy part of the scrubby country in lat. 29°, while prosecuting his 

 overland journey from Port Jackson towards Moreton Bay in the 

 winter of 1827. 



Mr. Gray stated that the comparison of a young specimen of 

 Mus giganteus, Hardw., with a specimen of Mus setifer, Horsf., 

 presented to the British Museum by their respective describers, had 

 enabled him to correct an opinion expressed by M. Temminck in 

 the 'Tableau Methodkjue,' appended to his < Monographies de Mam- 



