362 REPORT OF NEW JERSEY STATE MUSEUM. 
Fishes of sluggish habit in warm seas. Noted for their habit 
of filling the stomach with air when distrubed, and then floating 
on the surface of the water belly upward. They are not used as 
food, the flesh ill-flavored and reputed poisonous. ‘Two species 
on our coast. 
Key to the genera. 
a. D. and A. comparatively long, falcate, 12 to 15. LAGOCEPHALUS 
aa. D. and A. comparatively short, rounded, 6 to 8. SPHEROIDES 
Genus LAGOCEPHALUS Swainson. 
The Rabbit Fishes. 
Lagocephalus lzevigatus (Linnzus). 
Puffer. Rabbit Fish. 

Rabbit Fish. Lagocephalus levigatus (Linneus). 
Head 3%; depth 324; A.1, 12; A. 1, 11;-width of head 134 
in its length; snout 2; eye 434; mouth 534; interorbital space 
2%; dorsal along anterior margin 17g; anal 2; upper caudal 
lobe 174; least depth of caudal peduncle 514; pectoral 2. Body 
elongate. Caudal peduncle long, tapering till rather slender, de- 
pressed somewhat, and each side below with a fold. Head large, 
robust. Snout long, convex. Eye large, elongate, high and near 
last 7% in length of head. Teeth large. Lips very thick, fleshy 
and papillose. Interorbital space broad and flattened. Nostril 
