72
It is needless to enumerate the numerous forms of infusoria and organic life observed
in the different waters submitted to microscopical examination. Suffice it to state that no
Trypanosoma were discovered.—
Flies.—Numerous specimens comprising some eight different species were submitted to
examination.
(i) Those caught on different animals, horses, mules, bullocks, dogs.
(ii) Those caught in the vicinity of water, swamps, etc.
The Trypanosoma was not observed in any of the body fluids examined.
Ticks.—Ixodes from several animals were submitted to examination with negative results.
Fish.—A distinction with regard to the presence of hæmatozoa had been previously
observed between fish inhabiting the bottom of ponds and rivers (mud-fish) and those which
occupy the water above the mud. After microscopically examining the blood of a few of the
latter in which few or no hæmatozoa were found, our attention was devoted to the examination
of mud-fish. For the purpose of comparison examples of the following fish when possible were
obtained (i) from the Western Jumna Canal, running water ; (ii) the pond near the Canal.
Bridge (Depôt Estate), stagnant water; (iii) from the old River Jumna at Niawal, back
water.
The results of the microscopical examination of the fish examined are as follows :—
Cachri* or Chăchări (Punj).—This fish belongs to the order Acanthopterygii; family,
Labyrinthici ; genus Trichogaster. It corresponds closely with the species T. Faciatus.
Many specimens were caught in ponds supplied with water from the River Jumna. These
presented alternate blue and yellow bands descending obliquely downwards and backwards
from the back to the abdomen. The Dorsal and Anal fins are blue in colour, fringed with a
narrow line of red.
Depôt Pond.
In June 1896, the blood of fifteen specimens was examined. One† presented over
200,000 of the small variety of hæmatozoa in each c.cm. of
blood examined. In three fish the hæmatozoa were swarming
(over 50 in a field of the microscope), in one numerous (20), in nine few (5), and in one
specimen no parasites were found.
Old Jumna River.
The hæmatozoa were found to be swarming in one speci-
men, few in a second, and absent from the blood of seven.
Grisauli or Girai (Punj), Murral (Hindustani).—These fish belong to the order Acanthop¬
terygii ; family Ophiscephilidæ; genus Ophiscephalus ; species O. Striatus.
*TABLE LXXI.
Giving the measurements of thirteen specimens of Trichogaster for diagnostic purposes.
Serial No.
1
2
3
4
5
6
7
8
9
10
11
12
13
No.
of coloured bands
on body.
11
12
9
11
12
10
10
11
10
8
8
13
13
Length over all.
Inches.
3½
3¼
3 1/10
3 5/10
3 ⅜
3 3/10
3½
3 1/10
3 1/5
3 3/10
3
2
1 1/5
Length of head.
Inches.
⅞
¾
¾
13/10
13/10
13/10
13/10
13/10
11/10
11/10
11/10
½
¼
Length of body.
Inhes.
1¾
1¾
1⅝
l 13/10
1 13/10
1 12/10
1 12/10
1 13/10
1 13/10
1 11/10
1⅝
1 1/10
15/10
Length of tail.
Inches.
¾
¾
11/16
11/16
3/5
11/16
7/5
13/16
⅝
13/16
11/10
7/16
7/16
Vertical
height of body.
Inches.
1 1/16
1
1 3/16
1 1/8
1 1/5
1 1/16
1⅛
11/16
1⅛
113/16
1 1/10
1 3/14
¾
Length of Pectoral fin.
Inches.
¾
11/16
¾
¾
¾
¾
¾
¾
11/16
11/16
11/10
¾
¾
Pectoral fin, Number of
spines.
10
10
10
10
9
8
9
9
9
9
9
8
8
NUMBER OF SPINKS, DOESAL
FIN.
Anterior
portion.
16
16
16
16
16
17
16
17
17
16
17
16
16
Posterior
portion.
10
9
10
11
10
10
11
10
8
9
10
8
10
NUMBER
OF
SPINES, ANAL
FIN.
Anterior
portion.
17
16
17
16
16
16
16
17
17
17
17
16
17
Posterior
portion.
13
15
14
15
14
15
15
16
15
14
10
15
15
Candal Fin, Number of
spines.
17
18
17
17
16
16
15
15
15
15
15
15
15
Length of Pectoral
Appendages.
Inches.
2 1/5
2 ⅛
2
2
1 5/8
2 1/5
2 1/5
2 1/10
2
1 15/10
1 15/10
1 3/10
1¼
REMARKS.
Bauds varied from 8 to 13 in number, total length 1 28/32 to
3½
inches, length of Pectoral fin from 12/32 to 24/32 of inch, Can
dal fin 14/32 to 25/32 inch, D. 16-17/8-11,P. 8.-10, C. 15-18, A.
16-17/10-15
† Negative results followed the inoculation of small animals inoculated with this hæmatozoon.