CATALOGUE OF VERTEBRATES. 769 



CHILOMYOTBRUS, Bibr. 



C. echcepfl, Walb. (geometricus, Bl. & Schn., Diodon, maculostriatus.) 

 Rabbit-fish. Spotted Balloon-fish. Swell-toad. 



Greenish ; belly pale ; a round spot above pectorals, several 

 posterior and dorsally ; back and sides with black stripes, hori- 

 zontal and oblique; eyes large; nine spines between eye and 

 tail ; fins small ; spines with three roots (two in Diodon proper). 

 Dorsal rays, 12; anal rays, 10; length, 6 inches. 



" This species is not uncommon along our coast, entering the 

 bays. It is generally met with in summer, and never in cold 

 weather." 



Sub*p. fuliglnosus. 



Dark brownish olive, with wavy lines ; belly black ; bases of 

 its spines orange ; probably a young form of preceding. 



Family ORTHAGORISCIDJE. 



(Molidse.) 

 Headfishes. 



Body short and deep, truncate behind ; mouth small ; teeth united 

 to form a beak ; dorsal and anal confluent around posterior end of 

 body; no ventrals; no pelvic bone; pectorals present; belly not 

 inflatable ; no air-bladder. Tropical fishes looking as if " all head," 

 to which fins had been attached. 



MOLACANTHUS, Swains. 



M. nummularis, Walb. (Diodon, Acanthosoma, carinatum, pallasi.) 

 Globefish. 



. Olive brown above, silvery below; vertically-oval body, 

 higher than long ; spines scattered on the deep orbicular body ; 

 striated on sides ; vertical fins not confluent posteriorly ; spines 

 on tail in place of caudal. Dorsal rays, 25 ; length, 2 inches. 



" Occasionally met with in our waters, but never abundant. 

 Specimens are preserved in Philadelphia Museum, labeled ' New 

 Jersey.' " 



