SV ti sbDe SCRLPal LON OF A NEWS PE CEE S 
OF NEEM ACEP EOS FROM > NORTHERN 
NSD FIC AS. 
By B. L,. CHaupHurt, B.A., B.Sc., Assistant Superintendent, 
Indian Museum. 
Nemachilus mackenziet, sp. nov. 
Biel ia ba hoe On Ae Ps.O-7 "©. Toe 
Length of head 4, height of body 4#, length of caudal 34 to 4 
and the distance of cloacal opening from the root of caudal 34 in 
the total length. Breadth of body 12 in its height. 
Head.—Upper profile a straight line from nape of neck to 
behind the nasal pits, from which point it curves and suddenly 
slopes down. Shape of head cylindrical, being almost of equal 
height and breadth, both of which measurements are contained 14 
times in the length of head. There is a small slit or depression on 
each side in front of the eyes which in the male is bordered by a 
ridge extending like a small pad to below the eye on each side. 
where it terminates in a small rounded knob-like hanging flap. 
Eyes comparatively large, being 3} to 4 diameters in the 
length of the head, 13 to 1} in the length of the snout and 1 to 12 
diameters apart; the intraorbital space nearly flat. 
Barbels.—6 in all, 4 rostral and 2 maxillary: the outer rostrals 
are the longest, reaching below the hind margin of the eye and the 
maxillary reaches beyond them; the inner rostrals reach below the 
anterior margin of the orbit. 
Lips rather thin for the genus. The ends of the suctorial 
band meet at the middle of the lower lip. The ends are slightly 
expanded and curved up, thus making the lower lip look inter- 
rupted medially. No spine-like process projecting from the middle 
of the lower lip. 
Fins.—The dorsal is in advance of the middle point as well as 
of the ventral fin. There is a short thick appendant in the angle 
between the outer margin of the ventral fin and the body. ‘The 
length of the pectoral fin is contained 12 in the interval between 
pectoral and ventral fins while the lengths of the ventral and anal 
fins are contained I# and 1+ in the intervals between the ventral 
and the anal and the anal and the caudal, respectively. The outer 
margin of the caudal is rounded and is bilobed, being divided by a 
notch in the middle. 
Shape of body.—Slightly compressed. ‘The anterior end of the 
root of the dorsal fin is the highest point, the upper profile is 
almost a straight line with a slight concavity behind the dorsal fin 
