62 PEOCEEDINGS OF THE NATIONAL MUSEUM. vol. 64. 



cysts on viscera, typical, some oval, 12 fish examined, 1 date in 

 August, 12 cysts on mesentery and serous coat of viscera; 1 date in 

 September, 1 cyst, 1 fish examined ; 3 dates in October, a few small 

 cysts on viscera on each date, number of fish examined 6, 14, and 12. 



Selar crumenophthalmus. 



1913, August 29: 3 typical cysts, plerocerci and larvae, 14 fish 

 examined. 



Spheroides maculatus. 



Collected on 3 dates in August — (1) 15 characteristic cysts, 2 fish 

 examined; (2) small cysts, serous coat of intestine, 2 fish examined, 

 (3) 1 cyst, 1 fish examined. 



Tautoga onitis. 



Collected on 2 dates in August — (1) several cysts in walls of 

 stomach and intestine, some degenerate; (2) 3 cysts on viscera, 2 

 small with some waxy, degenerate tissue, the other larger with 

 calcified material in the cyst, 1 fish examined. 



Tautogolabms adspersus. 



Collected on 1 date in July, 1 scolex attached to its plerocercus, 

 introduced with food (pipefish), 6 fish examined; 3 dates in August — 

 (1) few cysts, 2 fish examined; (2) 1 cyst, 1 fish examined; (3) 2 

 small, yellow cysts, 3 fish examined. 



Tkunnus thynnus. 



1914, July 31 : 1 small cyst from intestinal wall, typical hooks 

 seen; diameter of cyst about 1.5 mm., associated with Koellikeria^ 

 species. 



Urophycis chuss. 



On 1 date in August, few cysts, 6 fish examined ; 1 date in October, 

 1 cyst from intestine, introduced with food, alewife, and sand eels 

 recorded in food, 12 fish examined; 2 dates in November, 1 cyst on 

 one date, 2 on the other. 



Urophycis tenuis. 



1913, October 29 : 1 cyst. 



KHYNCHOBOTHRIUM EXILE Linton. 



Plate 9, figs. 85-90. 



1908b, pp. 180-181, pi. 7, figs. 48-54. 

 Scolex as broad as long, slightly emarginate on posterior border; 

 proboscides relatively long, with two stout and strongly recurved 

 hooks at outer side of base, and about three stoutish, smaller hooks 

 behind them; inner side of base slightly tumid, with numerous 

 minute spines, remainder of proboscis armed with rather slender 



