129. TETRODONTID.E CHILOMYCTERUS. 863 



1335. D. liystrixL. 



Back, sides, and fins with numerous small, round blackish spots. 

 Spines strong, dilated at the base, with a pair of basal grooves; post- 

 pectoral spines the longest, about as long as the pectoral fin, those of 

 the posterior part of the back and tail short and broad, three-rooted 

 and therefore not erectile; upper and lower part of the tail with two 

 or three pairs of three-rooted, immovable, recumbent spines; frontal 

 spines moderate. Head 3; depth 3. D. 13; A. 13. In all tropical 

 seas, north to Lower California and Florida. L. about 3 feet. 



(L. Syst. Nat.; Giiutlier, viii, 306: % Diodon spinosissimus Giinther, viii, 307.) 



1336. D. MovcBnanacwlatais Cnvier. 



Olivaceous, variously spotted, usually a broad blackish brown band 

 between orbits, extending downward behind the eye; a second parallel 

 to it across the nape; a large transverse subtriangular spot in middle 

 of back; a kidney-shaped spot above pectoral; all these spots usually 

 pale edged ; back and sides with small black spots. Spines varying in 

 length ; upper part of tail without ossifications^ but a pair of spines 

 lying along-side, their base on the side of the dorsal; some tentacles 

 usually present above eye and on throat, abdomen, and back ; 14 to 19 

 transverse series of spines between snout and dorsal. Tropical seas, 

 north to San Diego. 



("Diodon tacliete" Lace~pede, ii, 13: Diodon novemmaculatus, sexmaculatus. quadrimac- 

 itltttiiN, au<l iHiiUhnaculati'8 Cuvier, Me"m. Mus. Hist. Nat. iv, 136, 137, 1818: Diodon 

 maculatus Guuther, viii, 307: Diodon maculatus Streets, Bull. U. S. Nat. Mus. vii, 43.) 



484. CHII.OBIYCTERUS Bibron. 



Rabbit-fishes. 



(Bibron (Chilomyclere, Revue Zool. 1846, 140); Kanp, Wiegm. Arcliiv. 1855,232: type 

 Diodon geometricus Bloch & Sch.n.) 



Body broad, depressed, moderately inflatable. Dermal spines short, 

 stout, immovable, triangular, each with three roots; nasal tube simple, 

 with two lateral openings; caudal peduncle short; fins small, formed 

 as in Diodon; jaws without median suture. (yjiXos, lip; fj.uy.yf>, nose. 

 "Marines non closes au sommet, mais chacune ayant I'appareuce de 

 deux levres, ou forinee de deux teutacules reuuis a la base.") 



1337. C. geometrleus (Bloch & Schn.) Kaup. RaWit-fisli ; Swell Toad. 

 Greenish; belly pale; a round, black, ocellated spot above pectorals, 



not as large as eye, a larger one behind pectorals, another at base of 

 dorsal, with a smaller one below it; back and sides with parallel black 

 stripes of uniform width about as wide as the interspaces, those on the 



