THE FISHES OF NEW JERSEY. 59 
toral large, immediately behind fifth gill-opening, inferior, reach- 
ing a little beyond origin of first dorsal, strong anteriorly, flexible 
posteriorly. Ventral subtriangular, nearly intermediate between 
dorsals, anteriorly flexible. Claspers large, subcylindric, pro- 
foundly striated, above with striz transverse and very rugose, 
medianly oblique and distally longitudinally, and also rugose. 
Lead-color, darker on back and paler on belly. Length 32 feet 
To inches, of dried skin 22 feet. Brown’s Point. (Le Sueur.) 
This very rare giant shark, which is apparently unknown to 
most fishermen, does not seem to have been noted since Le Sueur’s 
time, early in the last century. At times large examples from 
other places outside the state are exhibited by traveling showmen. 
Cetorlinus maximus Abbott, Geol. N. J., 1868, p. 828. 
Squalus elephas Le Sueur, Journ. Acad. Nat. Sci. Phila., II, 
bo22. pi 342, Pi 
Family GALEIDZ. 
The Typical Sharks. 
Snout produced as usual among sharks, not hammer-shaped. 
Spiracles small or obsolete. Gill-openings moderate, last above 
base of pectoral. Oviparous. Dorsal fins 2, first short and 
high and entirely before ventrals. Second dorsal opposite anal, 
and comparatively small. Tail more or less bent upward frorr 
base of caudal fin, and sides without keel. Fins without spines. 
This the largest group of recent sharks, found in all seas, has 
many species, often closely related and difficult to determine. 
Key to the genera. 
a. MusteLIn#. Teeth flat and paved. CYNAIS 
aa. GALEIN%. ‘Teeth more or less compressed, with entire or serrate sharp 
edges. 
b. Spiracles present; teeth all coarsely serrate, alike in both jaws, and 
all with deep notch on outer margin; caudal with double notch and 
without conspicuous pit above at root. GALEUS 
bb. Spiracles obsolete; lower teeth narrower than upper. 
c. Angle of mouth without groove, or with merely a slight depres- 
sion not extending along either jaw. CARCHARHINUS 
cc. Angle of mouth with more or less distinct groove extending along 
one or both jaws; teeth nearly entire. SCOLIODON 
