04 
Lygosoma (Liolepisma) atrogulare, sp. nov. 
Habit lacertiform and rather robust : the distance between the 
end of the snout and the fore limb is contained from once and one- 
sixth to once and one-third in male (?), and from once and one- 
third to once and one-half in female (?) specimens, in the distance 
between the axilla and groin. Snout of moderate length, obtuse. 
Lower eyelid with an undivided transparent disc. Nostril pierced 
in a nasal which is sometimes divided at its postero-superior angle, 
sometimes with a deep groove posteriorly : no supranasals : fronto- 
nasal much broader than long, hexagonal, forming a broad truncate 
suture with the rostral and a truncate or rounded one with the 
frontal ; prefrontals of moderate size, sometimes forming a suture 
with the second upper labial : frontal pentagonal or hexagonal, 
abruptly truncate or concave in front, truncate or angular behind, 
shorter than the frontoparietal, and in contact with the two 
anterior supraoculars : four supraoculars, the two middle ones 
the largest and laterally expanded : seven or eight supraciliaries,* 
the first and the fourth the largest : frontoparietal single, followed 
by a small interparietal : parietals forming a short median suture 
behind the interparietal : a pair of enlarged nuchals and a pair of 
temporals bordering the parietals ; fourth and fifth, or fifth and 
sixth, upper labials below the eye, the anterior the larger, the 
posterior separated from the eyelid by a series of small scales. 
Ear-opening round, about twice the sizeof the transparent palpebral 
disc, bordered all round by acute lobules, of which the middle one 
anteriorly is much the largest. Thirty-six to thirty-eight scales 
round the middle of the body, the dorsals quinque- the laterals 
tri-carinate, the ridges being much more marked in young specimens: 
lateral scales smaller than the dorsals or ventrals : marginal pre- 
anal scales but slightly enlarged : the median series of scales on 
the tail both above and below transversely dilated. The hind 
limb when stretched forward reaches to the axilla or shoulder : 
fingers four, toes five : subdigital lamelke twenty-nine to thirty- 
four under the fourth toe. Tail from two-thirds to four-fifths 
longer than the head and body. Colors— Head and body dark 
brown, the latter occasionally with some of the scales black edged; 
upper surface of the tail lighter brown, every third or fourth scale 
of the upper median dilated series with a broad black anterior 
and white posterior margin, forming together conspicuous double 
crossbands ; lower half of the sides and under surface of tail pale 
blue ; upper surface of limbs similar to the back, lower surface 
salmon color : under surface and sides of the head and the throat 
black with a strong metallic bluish gloss in the males (?), yellowish- 
white with a light blue gloss in the females(?), the labials and 
* In one example there are only six supraciliaries, the fourth being 
greatly enlarged, and formed by its fusion with the fifth and sixth. 
