U. S. NATIONAL. MUSEUM 



345. 



PROCEEDINGS, VOL. 88 PLATE 26 



346 



,\ 



345. Monostoma sp. from Gadus morrhua: Ventral view. 

 346-348. Distoma fenestratum Linton: 346, Anterior end of specimen fixed under pressure; 

 347, posterior end of same specimen; 348, posterior end of specimen showing 

 characteristic constricted intestine. (346 and 347 from Remora remora, 348 

 from AtMnodytes americanus.) 

 349, 350. Distoma $p. from Menticirrhus saxatilis: 349, Ventral view; 350, region of cirrus 

 pouch and metraterm. 

 351. Distoma sp. from Percopsis omiscomaycus: Ventral view. 



