314 Records of the Indian Museum. [VoL 2, 
One fish measured 77 mm. long and 28 mm. broad. 
The size of the largest cyst found on this fish was 4 mm. X 
2°5 mm., and that of the smallest was 1°25 mm. X Imm. There 
were 7 cysts on one specimen distributed as follows :— 
A. (1) Behind junction of upper and lower left lips. 
(2) One mm. behind left eye. 
(3) Ten mm. behind base of left pectoral fin. 
(4) Three mm. behind base of right pectoral fin. 
(5) Near posterior extremity of right pectoral fin. 
(6) Anterior and a little to left of anus. 
(7) Four mm. in front of anus. 
B. This fish measured 89 mm, long and 18 mm. broad. The 
positions of the cysts were as follows :-— 
(x) Undertettreye: 
(2) Above right eye. 
(3) Between the branchial apertures. 
(4) Near posterior extremity of left pectoral fin. 
(5) One and a half mm. posterior to base of left pectoral 
fin. 
(6) Two mm. behind left eye, near middle line. 
(7) On the right side of the dorsal fin. 
(8) At the base of the caudal fin on the right side. 
(9) On anal fin. 
(10) Anterior to anus. 
(11) Near middle of right side of body-wall. 
(12) Kighteen mm. anterior to base of caudal fin, on the 
left side. 
(13) Twenty-nine mm, anterior to base of caudal fin, on 
the left side. 
(14) Ten and a half mm. posterior to right eye. 
(15) Mid-ventral line, between mouth and anus. 
In every case the cysts were situated in the epidermis and 
were covered by scales. No cysts were found in the muscles. 
The wall of one cyst was I°I mm. thick and was densely pigmented 
with black. To the naked eye the cysts appeared of a dark 
steel-grey colour, due to the unpigmented covering of scales and 
epidermis. ‘The wall of the cyst was tough and fibrous, and, as 
we have already noted, densely black. 
The cysts contained Cercaria of a milky-white colour. They 
measured -7 mm. long and were bent upon themselves. The fish 
were not well preserved and the Cercaria were of a pasty con- 
sistency which did not allow of a careful examination of their 
anatomy. One sucker, however, appeared quite distinct. Itis, of 
course, impossible to state the probable identity of the adult 
species represented by these immature forms. Similar cysts and 
parasites have been recorded by Linton from a ‘‘cunner’’, . 
Tautogolabrus adspersus (Bull, U.S. Fish Comm., Washington 
