246 
M. C. A. UOrLENGKtt ON A NEW EN Y ALIUS. 
[Feb. I, 
5. Description of a new Species of Em/alius in the Brussels 
Museum. By G. A. Boulenoer. 
[Receivijd January 10, 1861.] 
(Plate XXVI.) 
Ill R paper on the collection of Reptiles made in Ecuador, and 
presented to the Brussels Museum by Consul Emile de Ville, I hare 
mentioned ' a specimen of Enyaiius, which I identified with E, 
heterolepist Bocourt, woticing, however, that the dorsal crest waa 
more elevated iu my spccimeu than lu the typical oue, HaTi»g; 
reexamuied the tbrmcr, and compared it with examples of the two 
beautiful species just described by Mr. O'Sbaughnessy, viz. mkro- 
fepis and E. prttstabUiSy I am now convinced that it belongs to a 
distinct, hitherto uudcscribed species, which I have the pleasure of 
naming 
Enyalius oshavghnessvi, sp. u, (Plate XXVI.) 
Head broad and rounded, once and two thirds as long as hroad, 
covered with subquadraiigular strongly keeled scales, those on the 
cantlius rostralis and the superciliary border a good deal larger and 
projecting. A small but distinct occipital [date. Loreal region 
concave, with small, irregular, keeled scales. Temporal region with 
small convex scales, above with a series of large conical ones ; a few 
large conical scales near the tympanum. Lalual shields I I, equal. 
Scales of the back and siilcs of the body small, smooth and slightly 
keeled, irregularly intermixed with larger but not cojiical ones. A 
median dorsal crest of very large conical scales, beginning behind 
the occiput, and gradually diminishing in height to the base of the 
tail, where it becomes douhlc and soon vanishes ; the highest of 
these scales on the neck measure more than the vertical diameter 
of the ear-opening. A single lateral series of conical scales on each 
side of the back, beginning at a small distance hebind the ear, and 
extending to the sacral region. There are about 12 longitudinal 
rows of scales between tlie doraal crest and the lateral series, and 'M) 
between the latter and the belly. Scales on the limbs strongly 
keeled. Scales of gular region keeled ; those of the pectoral and 
ventral regions as large as those upon the limbs, and strongly 
keeled. A single femoral pore on each side. Tail compressed, 
with verlieillate, strongly keeled scales, the verticil li composed of 
five or sis rings of increasing size j scales of the lower surface equal 
and also strongly keeled. 
Cohralion (in the single male specimen). General coUmr dark 
brown ; throat and some of the scales of the sides of the body 
and tail and some of the limbs greenish ; a liglit rounded spot on 
each side of the neck, behind the ear ; gular told black. 
' Bull. Soc. Zoc>l France, 1680, p. 43. 
