1831.] 
Climate of the Valley of the Nerbudda. 287 
habitat rivers of Siam ; only known from the account of the French mis- 
sionaries. 
6. c. biscutatus , Cuv. Black Crocodile, Adanson. Nape, armed with two large 
pyramidal scales in the centre, and two smaller ones in front. Muzzle less elonga- 
ted than in the Haytian Crocodile, though more so than in the other species. 
7. C. cataphractus. Cuvier saw a specimen of this species in the Museum of 
the College of Surgeons in London, but as is too frequently the case with the 
Zoological collections, which grace or rather disgrace our metropolis, no note 
respecting its origin had been preserved. Muzzle longer and narrower than in the 
Crocodile of St. Domingo, but it is the armour of the neck which more particular- 
ly characterizes it. After two oval isolated plates come five scaly bands, continuous 
with each other and with the scales of the back, formed each of two large square 
scales. The two first are very broad, the following three diminish gradually, and 
altogether they form a cuirass as solid as that of any Cayman or Gavial. 
Genus 3. Alligator. 
Muzzle broad and obtuse, the fourth tooth in the lower jaw on each side received 
into notches in the upper, hind feet semipalmate, and all the teet without indenta 
tions. 
1. A. Indus. Muzzle parabolic, depressed, scales of the neck four. N. America. 
2. A. Selerops. A transverse ridge between the orbits, neck armed with four 
bony bands. Guiana and Brazil. 
3. A. palpebrosus. Palpebroe bony, neck armed with four bony bands. Guiana. 
4. A. trigonatus. Palpebrae bony, neck armed with irregular triangular carmatcd 
scales. Guiana. 
This paper having extended much beyond the length I anticipated when com- 
mencing it, I shall not, as was my intention, make any observations upon the 
characters which may be regarded as specific, more especially as they are given 
in detail, in the description of some of the animals. Very little has been said 
concerning the Caymans or Alligators, as they have as yet been found only m 
America. It may be as well to state, that the above observations are taken chiefly 
from the article « Crocodile,’ in the Encyclopedia Metropolitana, and from the 
dossil Remains* in Griffith’s translation of Cuvier. 
Your constant Reader, 
W. 
Sir, 
V . — Climate of the Valley of the Nerbudda. 
To the Editor of the Gleanings in Science. 
In No. 16, for April 1830, is a notice of the climate of Barelly : you perhaps 
nia y deem it interesting to have a similar statement of the climate ol the u <y 
°f the Nerbudda. 
1 have the pleasure to annex a table for 5 years, being the most perfect of 
eVei 7 month that I possess. The first year was observed at Nursinghpoor *, a sta- 
t ‘ ( ’ n 8itll ated south of the Nerbudda, about 50 miles from this, in a south westerly 
faction. The remaining year was observed at Jubbulpoor, situated according 
^ C «Pt. Franklin in Lat. 23° 10' 40". N. Long. 79 ° 58' 15" E. at an elevation of 
1500 feet. 
1 This station is called Gurrawara in the Army List. 
