8. LYGOSOMA. 327 



black dorso-latei-al line ; sides groy, spockled with black ; lower 

 surfaces whitish, black-spotted. 



raillim. milliui. 



Total length 152 Fore limb 7 



Head 9 Hind limb 13 



Width of head .... 6-5 Tail 95 



Body 48 



Southern Australia. 



a-d. Ad. & hgr. Albany, S.W. Australia. H. Ling Roth, Esq. [P.]. 



e. Ad. Kangaroo Island. Paris Museum. 



f-(j. Ad. & hgi". King George's Sound. Col. Beddome [C.]. 



h. Several spec. Australia. Dr. Fleming [P.]. 



135. Lygosoma decresiense. 



Hemiergis decresieusis. Gray, Cat. pp. 87 & 272. 

 ZygTiis decresiensis, Fitzing. N. Class. Rept. p. 63. 

 Tridactyhis decresiensis, Cuv. R. A. 2nd ed. p. G4 ; Gray, Griff. A. K. 



ix. Syn. p. 72. 

 Hemiergis decresiensis, Dmn. ^- Bibr. v. p. 766 ; Gray, Zool. Ereb. ^ 



Terr., Rept. pi. vi. fig. o. 



decresiensis, part., Steind. Novara, Rejit. p. 50. 



polylepis, Giinth. Ann. ^' Mag. N. H. (3) xx. 1867, p. 48. 



Body much elongate ; limbs very weak, tridactyle ; the distance 

 between the end of the snout and the fore limb is contained twice 

 and one fourth or twice and a half in the distance between axilla 

 and groin. Snout short, obtuse. Lower eyelid with an undivided 

 transparent disk. Nostril pierced in the nasal ; no supranasal ; 

 frontonasal broader than long, forming a narrow suture with the 

 rostral and with the frontal : latter shield not larger than the inter- 

 parietal, in contact wdth the first and second supraoculars : four 

 supraoculars, second largest ; seven or eight supraciliaries ; fronto- 

 parietals distinct, nearly as long as the interparietal ; parietals 

 forming a suture behind the interparietal ; no enlarged uuchals : 

 fifth upper labial below the centre of the eye, from which it is 

 separated by a series of suboculars. Ear covered wdth scales, 

 indicated by a depression. 24 smooth scales round the middle of 

 the body, subequal. A pair of enlarged prasanals. The length of 

 the hind limb equals the distance between the centre of the eye and 

 the fore limb ; second toe slightly longer than third. Pale brown 

 above ; four longitudinal series of black dots, sometimes confluent 

 into lines, on the back : a black dorso-lateral line ; sides grey, 

 black-dotted ; lower surfaces yellowish, throat and tail black-spotted. 



millim. millim. 



Total length 89 Fore limb 6-5 



Head 8 Hind limb 10 



Width of head 5 Tail (reproduced) . . 42 



Body 39 



Southern Australia. 



