288 eciNciD^. 



84. Lygosoma tetradactylum, (Plate XXII. fig. 3.) 



Mocoa tetradactyla, O'Shauyhn. Ami. ^ Mag. N. H. (5) iv. 1879, 

 p. 300. 



Habit lacertiform ; the distance between the end of the snout and 

 the fore limb is contained once and one third in the distance between 

 axilla and groin. Snout short, obtuse. Lower eyelid with an un- 

 divided transparent disk. Nostril pierced in the nasal ; no supra- 

 nasal ; frontonasal broader than long, broadly in contact with the 

 rostral ; prefrontals, inner angles touching ; frontal much shorter 

 and narrower than the frontoparietal, in contact with the first and 

 second supraoculars ; four supraoculars ; seven supraciliaries ; fronto- 

 parietal single, followed by a minute interparietal ; parietals forming 

 a median suture : a pair of nuchals and a pair of temporals border 

 the parietals ; four labials anterior to the subocular. Ear-opening 

 oval, smaller than the transparent palpebral disk, with a short ob- 

 tuse lobule anteriorly. 34 scales round the middle of the body, all 

 perfectly smooth ; dorsals largest, laterals smallest. Prseanal scales 

 not enlarged. The hind limb reaches the wrist. Fingers four, toes 

 five ; subdigital lamellae smooth, 20 under the fourth toe. Tail a 

 little longer than head and body, Olive-brown above ; head with 

 a few black specks ; five fine, interrupted black lines along the 

 middle of the back, the median extending all along the tail ; a dorso- 

 lateral series of black dots, separated from the median dorsal lines 

 by a band of the pale ground-colour ; sides immaculate, with two 

 yellow longitudinal bands, the lower of which extends from axilla 

 to groin : lower surfaces greenish. 



millim. millim. 



Total length 117 Fore limb 16 



Head 14 Hind limb 22 



^Idth of head .... 10 Tail Q2 



Body 41 



Queensland ? 



a. Ad. ? %L G. Kreffi, Esq. (Type.) 



85. Lygosoma niimdum. 



Mocoa melanopogon, Graxj, Cat. p. 81. 



Carlia melanopogon, Gray, I. c. p. 271. 

 Carlia melanopogon, Gray, Zool. Ereh. 4" Terr., Rept. pi. vii. fig. 1. 

 Heteropus mundus, De Vis, Proc. Soy. Soc. Queensl. i. 1885, p. 172. 



Habit lacertiform ; the distance between the end of the snout 

 and the fore limb is contained once and one fourth to once and a 

 half in the distance between axilla and groin. Snout short, obtuse. 

 Lower eyelid with a very large transparent disk. Nostril pierced 

 in the nasal ; no supranasal ; frontonasal broader than long, forming 

 a broad suture with the rostral, in contact with the anterior angle 

 of the frontal ; latter shield as long as or shorter than the frouto- 



