a —a= . .  o. 
39 
It is exceedingly interesting as presenting an entirely new form, 
different in many particulars from any before observed ; so much so, 
that I am induced to form for it a new family, to be placed near dua- 
diade and Cherviolide, which may be thus characterized :— 
1, IpHisaDz. 
Scales of the back, belly, nape and throat smooth, broad, six-sided, 
transverse, forming a single series on each side of the tail, narrow, 
lanceolate, elongate, regularly keeled, in rings alternating with each 
other; head shielded; chin shielded; ear open, circular; femoral 
pores distinct. 
IpHIsa. 
Head depressed, shielded; anterior frontal single, broad, four- 
sided; posterior frontals two, small, subtrigonal; vertebral single, 
rather elongate ; posterior vertebral two, small, five-sided ; occipital 
three, larger, middle one narrow, longitudinal ; superciliary shield 
3-3, hinder smaller, anterior smallest ; temple with small shields ; 
labial shields moderate ; rostral and mental broad; chin entirely 
shielded ; anterior single, transverse, first pair very large, triangular, 
covering nearly the whole of the chin, second pair small, at the outer 
hinder angle of the former ; nostrils lateral, in the lower edge of the 
nasal shield, between it and the labial shield ; eyes large, lateral ; eye- 
lids scaly?; ears circular, open; nape, back, throat and belly covered 
with two series of broad, smooth scales; sides rounded, covered with 
three or four series of six-sided, smooth scales, placed in oblique series ; 
chest with a collar of five scales, the central one elongate, triangular, 
the lateral ones four-sided, the outer pair very narrow; preanal 
shields three, the central one elongate, narrow, subtriangular ; limbs 
short, weak, covered with broad smooth shields above, the hinder 
shield beneath ; femoral pores 10-10, distinct, the series nearly 
united in front of the preanal plates; toes 5-5, unequal, the inner 
very short, the outer hinder separated from the other by a space like 
a thumb ; tail elongate, cylindrical, tapering, covered above and below 
with whorls of narrow, elongate, regular, lanceolate, strongly keeled 
pointed scales, those of each series alternating with those that suc- 
ceed and follow it. 
1. IpHisa ELEGANS. (Reptilia, Pl. VI. fig. 3.) 
Olive-brown black marbled; sides darker, white varied ; chin and 
beneath yellowish white. 
Hab. Para. 
2. DescRIPTIONS OF SOME NEw Birps IN THE MusEUM 
OF THE Eart or Dersy. By Dr. Kaur. 
(Aves, Pl. XXXVI. XXXVII. XXXVIII.) 
During my visit to London last year I had the honour to receive 
an invitation from the Earl of Derby, to visit his collection at Knows- 
ley Hall, with permission to use the materials I might find there for 
