FISH PARASITES COLLECTED AT WOODS HOLE. 
281 
(7) August 15; eight; stomach contents not noted. Cystic ducts with usual larvae. Tetra- 
rliynchus larvae in stomach walls, not abundant. Numerous small, immature nematodes on mesentery. 
About 20 specimens of Echinorhynchus proteus in a cluster in one of the squeteagues, within about 
25 mm. of the anal end of the rectum. The heads of these worms had penetrated the intestine and 
the serous side of the intestine at this place was covered with cysts; some of the latter were opened 
and revealed waxy concretions similar to those described in a former paper, though in these cases 
all were small. (Entozoa of Marine Fishes, 1886, p. 497, pi. vi, fig. 5, a and b.) 
(8) August 16; one; stomach contents not noted, probably empty. Larvae in cystic duct and 
gall bladder, as usual. 
(9) August 25; ten; stomachs with fish and squids. The usual larval cestodes in cystic duct and 
gall bladder; also in the intestine others similar but smaller, and all with two red blotches in the neck. 
Larval Tetrarhynchi encysted in stomach wall, small cysts and nematodes on mesentery. One much 
elongated blastocyst on mesentery of one of the fish. Length of anterior portion in life varying from 7 
to 14 mm. ; length of the posterior slender portion, 75 mm. or more. When placed in the killing fluid 
the anterior part, which in life was oblong and translucent, contracted to a globular shape, 5 mm. in 
length, and became tense, opaque, and of a dead white color; the posterior portion, when straightened 
in the killing fluid, measured 90 mm. in length, and was transparent and colorless. The larva, when 
liberated from the auterior portion, was found to have well- developed hooks on the proboscides, and 
proved to be a scolex of the species Tetrarhynchus erinaceus Beueden. (Larval Cestode Parasites of 
Fishes, pp. 811-812, pi. lxvii, figs. 1-8.) 
28. Tautogolabrus adspersus, Cunner. 
(1) August 10; six, small, 9 to 10 cm. in length; scales of fish found in stomachs of three, others 
empty, one cyst containing blastocyst and larval Bhynchobothrium. The proboscides were retracted 
and the specimen was too immature for satisfactory determination. The arrangement of hooks sug- 
gested B. bulbifer. (Cestode Parasites of Fishes, p. 448; Larval Cestode Parasites of Fishes, p. 793.) 
(2) August 16; one, a good-sized specimen; in stomach were bits of sea weed and a tunicate 
(Cynthia partita). Five or six amber-colored cysts on and in the testes and one of similar nature on 
liver. These had the general appearance of a cestode cyst, but contained only waxy, degenerate 
connective tissue. Two of the larger cysts were surrounded with patches of fat cells. 
(3) August 26; ten, small; stomach contents not noted. Several small cysts, containing blasto- 
cvsts and larvre, on viscera. These appear to be the same as form mentioned in my notes on Cestode 
Parasites of Fishes, page 794, pi. lxiii, fig. 2. 
(4) September 5; five; stomach contents not noted. No entozoa found except in one. Skin 
with immense numbers of cysts and pigment patches, producing a blue-black color effect which makes 
the iufected fish a very conspicuous object, due to immature distoma. For further details, see page 
296 (figs. 76-81). 
29. Spheroides maculatus, Puffer. 
(1) June 13 and 14; one on each date; stomach contents not noted. Specimens collected by Dr. 
F. P. Gorham. 
Numerous distoma from intestine and pharynx, large and small of same species. The largest 
were from the pharynx, attached to the walls around entrance to the pouch. I refer this distomum 
to a new species, D. vibes. See page 291 for description and general account. 
One cestode cyst (Tetrarhynchus sp.), a lernean, and one specimen of Echinorhynchus, probably 
E. acus, in bottle with the distoma. Mr. Gorham obtained all of these from the pharynx of the fish. 
Tho Echiuorhynchus is a female; length, 10 mm. The hooks and general proportions, proboscis and 
body, agree with E. acus. The specimen is much smaller, however, than is usual in that species. 
The lcmnisci were indistinctly seen. 
(2) July 20; one, small, less than 20 mm. in length. Small distoma, probably young of I), vibex, 
in intestine. Collected by Dr. F. P. Gorham. 
30. Mola mola, Sun-fish. 
July 18; one; alimentary canal filled with digested material of the consistency of thick soup. 
Yinal N. Edwards tells me he has usually found them “full of jelly-fish.” The fish had been taken 
off No Man’s Laud by a party from the Marine Biological Laboratory. The external parasites, of 
which I was told there were many, probably Tristomum rudolphianum, had been removed by the 
capturing party and were not seen by me. 
