Gould's Monitor. Monitor Gouldii. 

 Plate 3. 



Monitor Gouldii, Schlegel. Gray, Cat. Rept. B. M. 12. 



Hydrosaurus Gouldii, Gray, Ann. N. H. i. 394. Grey's 

 Trar. Austr. ii. 422. 



With 2 yellow streaks on the side of the neck ; scales 

 over the eyes small, granular, of forehead larger; ventral 

 shields small, longer than broad. 



Inhab. Western and North-western coast of Australia. 



Hydrosacrus, Wagler. 

 Tupinambis, part, Fitz. 



Nostrils oblong, longitudinal, near the apex of the muz- 

 zle. Tail elongated, with a double-edged keel above. 

 Toes unequal, elongate. Teeth compressed, shai-p-edged, 

 denticulated. 



This genus is divided into two sections; some have the 

 scales over the orbit small and equal, others have a series 

 of larger ones in the middle of the small ones. All the 

 Australian species belong to the former division. The 

 second section contains two species ; one, M. bivUtutus, 

 found in India, Borneo and the Philippines, the other, M. 

 prasinus, at New Guinea. 



* Scales over the orlit equal. Neck with lunate hands. 

 The Lace Lizard. Hydrosaurus rarius. 



Lacerta varia, Shaw, White's Journ. N. S. W. 246, t. 3, 

 / 2. Nat. Misc. iii. /. 83. 



Uaranus varius, Merrem, Tent. 58. Dum. et Bib. E. G. 

 iii. 491. Gray, King's Voy. ii. 427. 



Tupinambis variegatus, Baud. Rept. iii. 76. Kuhl, 

 Beytr. 125. 



Hydrosaurus varius, Wagler, Syst. 164. Gray, Ann. N. 

 //.i.'394. Cat. Rept. B. M. 12. 



Grey, with black cross bands, which are lunated over 

 the nape ; scales of the orbit very small, equal. 



Inhab. New Holland. 



Bell's Lace Lizard. Hydrosaurus Bellii. 



Uaranus Bellii, Dum. et Bib. E. G. iii. 493, t. ^b, f. 1. 

 Gray, in Grey's Trav. Austr. ii. 422. 



Hydrosaurus Bellii, Gray, Cat. Rept. B. M. 13. 



Pale, body and tail with broad black cross bands; scales 

 of the orbits dilated, equal. 



Inhab. Austraha ?? 



This species is only known from a .specimen in Mr. 

 Bell's collection, and one in the Paris Museum. 



** Scales of the orbit equal, small. Neck spotted like back. 



ITie Gigantic Lace Lizard. Hydrosaurus giganteus. 



Plate 4. 



Hydrosaurus giganteus. Gray, Cat. Rept. B. M. 13. 



Brown, back and tail with cross bands of large black- 

 edged white spots; neck and under side of body pale, with 

 large black round reticulations; legs white-spotted ; toes 



rather short, strong; shields of the head subequal, con- 

 vex, over the orbits very small, granular. 



Inhab. N. coast of New Holland. 



The largest species of the genus. The specimen in the 

 British Museum is 78 inches long. It was discovered and 

 described by Capt. Stokes, R.N. 



Tribe II. Geissosaura. 

 Scales of the belly and (almost always) of the back and 

 sides, rounded, quincuncial, imbricate, fonned of a more or 

 less thick, vascular, bony plate, covered with a thin epi- 

 dermis, often shomng the vessels through it. Sides round- 

 ed, covered with scales like those of the back. Tongue 

 narrow, short, flat, slightly nicked at the end. Head co- 

 vered with regular many-sided shields (rather scale-like in 

 [Lialisidtc). Neck not contracted. Body fusiform or 

 subcylindrical. Femoral pores none, (except in Pygopus 

 and Lialis). 



A. Eyes distinct, exposed. Eyelid rudimentary. Head 

 conical. 



Fam. Gymnophthalmid^. 

 Nostrils lateral, in a single nasal plate, without any su- 

 pranasal above it. Teeth conical, simple. Palate tooth- 

 less. Tongue scaly, nicked at the tip. Eyes naked. Eye- 

 hds rudimentary, circular, ring-like, and immoveable. 

 Ears distinct. Body fusiform. Limbs 4, weak, unequal. 

 Femoral pores none. 



Cryptoblephards, Cocleau, Weigmann. 

 Ablepharus, part, Dum. et Bib. 

 Head pyramidical. Frontoparietal plate single. Nos- 

 trils lateral, in a single nasal, supranasal none. Eyelid 

 rudimentary, circular. Ears moderate, open, denticulated 

 in front. Tongue flat, scaly, nicked at the tip. Palate 

 toothless. Body fusiform. Scales smooth, or verv finely 

 and indistinctly grooved. Legs 4. Toes 5-5, unequal, 

 rather comijressed. Tail roundish, tapering, acute. Pre- 

 anal scales in three rows. 



* Eyelid complete, with a series of larger scales above. 

 The Pete. Cryptoblepharus Boutonii. 



Scincus plagiocephalus, Peron, Mus. Paris. 



S. Boutonii, Desjard. Ann. Sci. Nat. xxii. 298. 



S. arenarius, and S. furcatus, Schlegel, Mus. Leyd. 



S. aureus, Mus. Paris. 



Cryptoblepharis Peronii, Coct. Scincoides, i. t. Man 

 Zool. t. Dum. et Bib. E. G. v. 813. 



C. Leschenaultii, Coct. Scin, i. t. 



C. Boutonii, Gray, Cat. Rept. B. M. 64. 



Ablepharus pcecilopleurus, Weiqm. N. Act. N. Cur xv 

 183, /. 8, / 1. Gray, Ann. N. H. ii. 335. Grey's Trav 

 Austr. ii. 426. Seha, TJies. ii. t. 2,/ 9-10. 



Tiliqua Buchanani, Gray, Ann. N. H. ii. 291. 



Olive or bronzed, brown-varied. Scales black-streaked. 

 Eyelid circular, scaly, with the three upper scales larri-est. 

 Ears moderate, suboval, open, simple-edged. Rostral 

 plate very large, triangular. Preanal plates 6 or 7, neariv 

 equal. 



Inhab. Western Australia, the Isle of France, Timor. 



