222 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [516] 
MACKEREL ; (Scomber vernalis.) 
Specimens taken July 18, twenty miles south of No Mans Land, con- 
’ tained shrimps, Thysanopoda, sp.; larval crabs in the zoéa and megalops 
stages of development; young of hermit-crabs; young of lady-crabs, 
- Platyonichus ocellatus ; young of two undetermined Macroura; numer- 
ous small Copepod Crustacea ; numerous shells of a Pteropod, Spirialis 
Gouldit. ‘ 
SmaLL Tunny ; (Orcynus thunnina.) 
One specimen caught at Wood’s Hole, in August, contained eleven 
squids, Loligo Pealii. 
Bonito ; (Sarda pelamys.) 
Specimens taken at Wood’s Hole, in August, vontained an abundance 
of shrimp, Crangon vulgaris. 
BLUE-FisH ; HORSE-MACKEREL ; (Pomatomus saltatriz.) 
Specimens caught at Wood’s Hole, in August, frequently contained 
squids, Loligo Pealii ; also various fishes. 
Off Fire Island, Long Island, August, 1870, Mr. S. I. Smith saw blue- 
fishes feeding eagerly on the free-swimming males (heteronereis) of Nereis 
limbata, (p. 318,) which was then very abundant. 
SeA-RoBIn ; (Prionotus Carolinus.) 
A specimen caught at Wood’s Hole, May 27, contained shrimp, Cran- 
gon vulgaris ; and a small flounder. 
Another caught May 29 contained Amphipod Crustacea, Anonyx (?), 
sp.; and Crangon vulgaris. 
Specimens dredged in Vineyard Sound, in August, contained mud- 
crabs, Panopeus Sayi ; rock-crabs, Cancer irroratus ; and several small 
fishes. 
ToavD-Fisu; (Batrachus tau.) 
Several specimens examined at Great Egg Harbor, New Jersey, April, 
1871, contained young edible crabs, Callinectes hastatus of various sizes 
up to those with the carapax two inches broad; shrimp, Crangon vul. 
garis ; prawn, Palemonetes vulgaris ; Ilyanassa obsoleta ; various fishes, 
especially the pipe-fish, Syngnathus Peckianus ; and the anchovy, Engrau- 
lis vittatus. 
A specimen caught at Wood’s Hole, in July, contained the common 
rock-crab, Cancer irroratus. 
GOOSE-FISH ; ANGLER ; (Lophius Americanus.) 
A specimen caught in Vineyard Sound, in June, contained crabs, 
Cancer irroratus ; and squids, Loligo Pealii. 
Cop; (Gadus morrhua, ver.) 
The cod-fishes devour a great variety of Crustacea, Annelids, Mol- 
lusks, star-fishes, &c. They swallow large bivalve shells, and after 
digesting the contents spit out the shells, which are often almost unin- 
