THE FISHES OF NEW JERSEY. 349 
head and fins. Tubes of lateral line simple, large. Ventral with 
scaly axillary flap. Third dorsal spine slender, much longer than 
others. Rayed dorsal inserted about midway between posterior - 
edge of orbit and base of caudal, and anteriorly with a long 
slender falcate lobe. Anal spines small, graduated to last, which 
is longest.. Rayed anal similar to rayed dorsal, and its insertion 
falling nearer base of caudal than origin of pectoral. Caudal 
deeply lunate, lobes not distinct, pointed. Pectoral short, half 
way to rayed anal, and placed below eye. Ventral long, pointed, 
a little over 24 of rayed anal. Grayish with metallic reflections. 
Ventral dusky. Length 14% inches. Anglesea. 
The above example was secured by Mr. Wm. J. Fox in July, 
1903. Mr. Fox also observed it at Sea Isle City during the early 
summer of 1905. An excellent food-fish reaching a length of 3 
feet: 
Ephippus faber Abbott, Geol. N. J., 1868, p. 811. 
Ephippus gigas Abbott, 1. c. 
Family CHAATODONTIDE. 
The Butterfly Fishes. 
Body strongly compressed, elevated, suborbicular in outline. 
Mouth small, protractile, terminal. Eyes lateral, of moderate 
size. Maxillary very short, irregular in form, divided in two by 
a longitudinal suture. Upper part of skull solid, occipital crest 
strong. Post-temporal firmly joined to skull, its form really 
trifurcate, though appearing simple, and interspaces between 
forks filled by bone so that only a foramen is left. Last bone of 
suborbital ring firmly joined to preopercle. ‘Teeth brush-like or 
setiform, often extremely long, in narrow bands in jaws. No 
teeth on vomer or palatines. No canines, molars or incisors. 
Gill-membranes more or less attached to isthmus. Gill-rakers 
very small. Pseudobranchiz very large. Branchiostegals 6 or 
7, Air-vessel present. Vertebre 10 + 14== 24, anterior ab- 
breviated. Insertion of ribs inferior. Post-temporal usually re- 
duced and not bifurcate. Body covered with moderate-sized or 
small scales, finely ciliated or nearly smooth. Lateral line pres- 
