268 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
less irritation by its attachment to the walls of the rectum of the sword-fish (Xiphias 
gladvus). and Echinorhynchus proteus, in almost all cases where seen in the squeteague 
(Cynoscion regalis), the blue-fish ( Pomatomus saltatrix), and in former years in the 
striped bass ( Roccus lineatus), penetrates the intestinal wall of its host, causing 
various degeneration alterations in the surrounding tissues. 
Summary of results (for details see Part I). 
Host. 
Parasites. 
Scientific and common names. 
No. 
Nematodes. 
A. c an tli o- 
Trema- 
Cestodes. 
Stomach con- 
tents. 
ined. 
cep h ala. 
todes. 
Encysted. 
Free. 
1G 
Few. 
Many (2 
species). 
Numerous 
Numerous 
(5 species). 
Few (2 spe- 
cies). 
Numerous 
Crabs, fish. 
Fish, mollusks, 
etc. 
Fish. 
Fish, squid. 
Fish. 
Fish. 
Annelids, squid. 
Crabs, annelids, 
shrimp, etc. 
Fish. 
Crustacea. 
Mollusk. 
Fish. 
Shrimp, cope- 
pods, etc. 
2. Galeocerdo tigrinus, Leopard shark .. 
3. Carcharhinus obscurus, Dusky shark. 
4. Spliyrna zygaena, Hammerhead shark 
2 
Many. 
4 
3 
2 
u 
100 
1 
Few. 
3 
1 
8 
5 
1 
5 
3 
7 
Few-. 
Many (11 
species). 
Numerous 
(3 species). 
11. Myliobatis freminyillei, Sharp-nosed 
ray. 
1 
3 
1 
1 
1 
7 
3 
Few. 
Many (lar- 
vae). 
15. Oyprinodon variegatus, Short min- 
now. 
2 
3 
1 
Numerous 
(larvae). 
Fish. 
Fish. 
Fish. 
Fish, squid. 
37 
Numerous 
18. Scomberomorus regalis, Spanish 
mackerel. 
i 
Numerous 
2 
24 
6 
1 
8 
1 
Numerous 
Fish, squid. 
Small Crustacea, 
mollusks, and 
squid. 
22. Palinurichthys perciformis, ltudder- 
lish. 
23. Rhombus triacanthus, Butter-fish 
14 
1 
Numerous 
Numerous 
(larvae). 
9 
Numerous 
Few. 
3 
Numerous 
Shrimp. 
Fish. 
Hydroids, anne- 
lids, Crustacea, 
squid. 
Fish. 
Fish, seaweeds, 
etc. 
25. Centropnstes striatus, Black sea-bass . 
2 
53 
Few. 
Many (lar 
vae). 
Numerous 
(larvae). 
47 
Many. 
Few. 
Many. 
28. Taut.ogolabrus adspersus, Cunner 
22 
Very nu- 
merous. 
3 
1 
1 
1 
Few. 
Few. 
31. Myoxoceplialus aeneus, Sculpin 
1 
1 
(4 species). 
9 
Few. 
3 
Few. 
Fish. 
Crabs. 
Fish. 
Fish. 
33. Lopholatilus chamaeleonticeps, Tile- 
fish. 
e\ 
i 
1 
2 
8 
35. Merluccius bilinearis, Silver hake 
G 
Many. 
Many. 
Numerous 
Numerous 
(larvaB). 
1 
50 
100 
37. Paraliehthys dentatus, Summer 
flounder. 
24 
1 
Few. 
Few. 
Few (2 spe- 
cies). 
Numerous 
(larvae). 
1 
Squid, fish. 
39. Paeudoplenronectesamericanus, Win- 
ter flounder. 
40. Lophius piscatorius, Goose-fish '. 
3 
3 
Many. 
3 
11 
Numerous 
Numerous 
(larvae). 
