8, LYG@osoma. 295 
91. Lygosoma callistictum. 
Euprepes (Tiliqua) callistictus, Peters § Doria, Ann. Mus. Genova, 
xiii, 1878, p. 855. 
Allied to L. atrocostatwm and L. baudinii. Supranasals widely 
separated ; frontonasal in contact with the frontal ; frontoparietals 
and interparietal fused into a single large shield ; five labials anterior 
to the large subocular. Ear-opening oval, without lobules. 28 
scales round the body; dorsals bicarinate. The hind limb reaches 
the axilla. 38 lamellae under the fourth toe. Brown above By 
fulvous streak along the middle of the head and nape; sides of neck 
spotted with fulvous ; lower surfaces greenish. 
millim. millim. 
From snout to vent. 50 Fore limb ........ 17 
Head .escesencs 13 Hind limb ........ 19 
Soron, N.W. New Guinea. 
92. Lygosoma, atrocostatum. 
Mocoa cumingii, Gray, Cat. p. 81. 
Mabouya atrocostatus, Gray, l.c. p. 95. 
Scincus atrocostatus, Lesson, Voy. Coquille, Zool. ii. p. 50, pl. iv. fig. 3. 
Eumeces freycinetii, Dum. § Bibr. v. p. 648. 
Euprepes biteeniatus, Peters, Mon. Berl. Ac. 1864, p. 53 *. 
—— (Mabuya) cumingii, Peters, Mon. Berl, Ac. 1867, p. 20. 
—— (Mabuia) microstictus, Peters, Mon. Berl. Ac, 1874, p. 378 *, 
? Mabouia marmorata, Macleay, Proc. Linn, Soc. N.S. W. ii. 1877, 
. 65, 
ig pana irrorata, Macleay, l. c. p. 66. : 
Euprepes (Mabuya) atrocostatus, Peters § Doria, Ann. Mus, Genova, 
xiii. 1878, p. 358, : 
Eumeces serratus, Fischer, Abh. Naturw. Ver. Hamburg, ix. 1886, 
p- —, pl. ii. fig. 3. 
Habit lacertiform; the distance between the end of the snout 
and the fore limb is contained once and one fifth to once and one 
third in the distance between axilla and groin. Snout rather 
elongate, obtusely acuminate. Lower eyelid with an undivided 
transparent disk. Nostril pierced between three shields—a nasal, a 
postnasal, and a supranasal; frontonasal usually a little broader 
than long, in contact with the rostral and usually also with the 
frontal ; latter smaller than the frontoparietal, in contact with the 
first and second supraoculars: four supraoculars ; seven or eight 
supraciliaries ; frontoparietals united into a single large shield ; 
interparietal distinct, small; parietals forming a short suture behind 
the latter shield ; a pair of nuchals and a pair of large temporals 
border the parietals; four or five labials anterior to the large 
* Types examined, 
