18. BTPLODACTTLTTS. 103 



anterior larger, the others very small ; mental subpyramidal, twice 

 as long as the adjacent labials ; no chin-shields. Abdominal scales 

 very small, granular, smaller than the granules on the middle of 

 the back. Tail short, swollen, root-shaped, with rings of small 

 subquadrangular convex scales largest above. . Male with a group 

 of conical scales on each side the base of the tail. Eeddish brown 

 above, with irregular dark-edged light transverse spots on the back 

 and tail ; sides dotted with whitish ; lower surfaces white. 



Total length 70 millim. 



Head ] 1 



Width of head 8 



Body 33 



Fore limb 17 



Hind limb 20 



Tail 26 



West Australia. 



a. (£. N.W. Australia. 



8. Diplodactylus tessellatus. (Plate VIII. flg. 6.) 



Stenodactylopsis tessellatus, Gunth. Zpol. JErebus iSr Terror, p. 16. 



Head large, oviform, very convex ; snout rounded, as long as 

 the diameter of the orbit or the distance between the eye and 

 the ear-opening ; latter small, round. Body short ; limbs long, 

 slender. Digits rather long, slender, feebly depressed, not dilated 

 at the end, inferiorly with small granules ; apical plates small, oval. 

 Head with small granular scales ; rostral four-sided, emarginate 

 above, more than twice as broad as high, with trace of median 

 cleft ; nostril pierced between the rostral, the first labial, and six 

 nasals ; .latter, anterior larger, posterior very small granules ; nine 

 upper and ten lower labials ; mental elongate, not larger than 

 the adjacent labials ; no chin-shields. Back covered with flat 

 tessellated juxtaposed scales, much larger on the middle of the back. 

 Abdominal scales flat, subimbricate, not half the size of the larger 

 dorsal scales. Male with a group of conical tubercles on each side 

 the base of the tail. Greyish white above, with faint irregular 

 brownish variegation ; white beneath. 



Total length 69v millim. 



Head 14 



Width of head 9 



Body 34 



Fore limb 19 



Hind limb 23 



Tail (reproduced) 21 



Australia. 

 <i. (S . Australia. G. Kreflt, Esq. (Type.) 



