280 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



Rhynchobotlirium remained attached when it was forced out by pressure. A few eneapsuled nematodes 

 among tbe cysts on tbe mesentery, the intestines of which were somewhat folded or crumpled, white 

 by reflected and pale reddish or yellowish brown by transmitted light. 



26. Stenotomus chrysops, Scttp. 



(1) July 19; sixteen, about two years old; stomachs empty. Several nematodes and a few cysts 

 on serous covering of viscera. Small cestode larva 1 , similar to those found in squeteague, flounder, 

 etc., in intestine. 



(2) June 14; small nematodes and cysts from body cavity, collected by Dr. F. P. Gorham, agree 

 with lot (1). 



(3) July 25; two; stomachs contained annelids and amphipods. Cestode cyst and nematodes 

 on viscera same as lot (1). 



Leech, slender, yellowish-brown, with three longitudinal rows of white blotches, one on each side 

 and one dorsal, about eighteen in each row ; suckers bluish-white. Although this leech was found on 

 the scup, it probably came from one of two flounders which were in the same pail with the scup. In 

 the same pail were, in addition to these, an eel, a blue-fish, and two sea-robins. 



(4) July 26; one; stomach with young squid. A few uematodes on viscera, same as in lot (1). 



(5) August 4; one; small globular cysts in kidneys, collected by Mr. E. E. Tyzzer. See page 301 

 for description. 



(6) August 5; two; stomachs empty. Small immature netnatode on mesentery. Dimensions, in 

 millimeters: Length (alcoholic), 9. Other dimensions from life. The worm was transparent, and the 

 brownish intestine had an anteriorly projecting diverticuluin 0.14 in length; length of (esophagus, 

 1.42; head with prominent papilla on ventral lip and two others less distinct; posterior end slender 

 acuminate; distance from anal aperture to posterior end, 0.14. 



(7) August 15; two; stomachs contained hydroids (Pennarifi). Two small nematodes and one 

 small distomum from viscera. The body of the distomum was covered with minute scale-like spines. 

 For further details see page 296 (fig. 72). 



(8) August 22; thirty-one; stomach contents not noted. Careful search was made in the hope 

 of getting more examples of the distomum found in (7). Only a few small, immature nematodes and 

 encysted larval Rhynchobothria found. The latter agree with the form described in my Notes on 

 Larval Cestodes of Fishes, pp. 796-797, plate LXIII, figs. 9-13. 



27. Cyiioscioii regalis, Squeteague. 



(1) July 18; two; stomachs empty. 



Cestodes : Larval Rhynchobothria in cysts on viscera. Larval cestodes in gall bladder, very 

 numerous in one, attached in clusters to mucous lining of gall bladder; in the other few. (Larval Ces- 

 tode Parasites of Fishes, pp. 789-792, pi. LXI, figs. 4-15.) 



Nematodes: Numerous in cysts on viscera. These were small, immature, for the most part of a 

 brown color, especially those recently liberated from cysts. 



(2) July 19; five; stomachs contained young herring and butter-fish. 



Cestodes: Numerous cysts containing larval Rhynchobothria and Tetrarhynchi on serous cov- 

 ering of viscera. The usual larval cestodes in gall bladder and cystic duct, the clusters forming 

 swellings in the cystic ducts of some, which look as if they might occlude the duct in some cases. 



Nematodes: Numerous immature nematodes encysted on serous membrane of viscera. 



Acanthocephala: EcltinorJn/nclius proteus. Two of the fish with several specimens in intestine. 

 In each case the head and globular bullahad penetrated the intestinal wall and were protruding into 

 the body cavity. (Eutozoa of Marine Fishes, part in, pp. 537-538, pi. vin, figs. 85-88.) 



(3) July 23; three; stomachs not noted. Cestode cysts on viscera, especially on mesentery. 

 Large numbers of immature nematodes, free and encapsuled on mesentery. 



(4) July 28; three; stomachs with half-digested fish. Numerous cysts (Tetrarliyncluis) in stom- 

 ach wall; cystic ducts of two with the usual cestode larva 1 . 



(5) July 29; eighteen; stomachs with partly digested fish. The usual entozoa in each, viz: 

 Tetrarhynchus larva? encysted in the stomach wall. Cestode larva? in cystic duct. Nematode and 

 cestode cysts in mesentery. 



(6) August5; two; stomachs empty. Cystic ducts with the usual larval cestodes. free in the 

 lumen of the duct and in gall bladder, and loosely attached by their heads to the mucous membrane. 

 Masses of cestode cysts and encapsuled nematodes on mesentery. 



