5. cniLOMYCTEHUS. 311 



Var. a. Back with narrow light and brown longitudinal stripes 

 {D. maculato-stnatus, rivulatus, geometrims). 



a. Half-grown, United States. Presented by the Smithsonian 



Institution. 

 h. Adult. Texas. Purchased of Hr. Brandt. 



c. Half-grown. Pontchartrain Lake. From M. Salle's Collection. 



d. Half-grown. Lake Champlain. Purchased of M. Parzudald. 



e. Half-grown. Cuba. From the Collection of the Zoological 



Society. 

 /. Adult : stuffed (6 inches). Cape seas. Presented by Sir A. Smith. 

 g. Adult. From the Haslar Collection. 

 h. Adult : stuffed (9 inches long). 



Var. /3. Back with a network of dark lines. 



i. Adult (6 inches). Trinidad. Presented by J. B. llichardson, 



Esq. 

 h. Adult. From the Haslar Collection. 



Var. y. Body without distinct markings beside the spots described 

 above. 



I. Adiilt (7 inches). Brazil. Purchased of Mr. Higgins. 



m. Half-grown. Bahia. Purchased of Mr. Cutter. 



n-p. Adult : stuffed. 



q. Half-grown. Presented by the Royal College of Surgeons. 



r~s. Young. Purchased of Mr. Argent. — Types of C. cornutus. 



3. Chilomycterus antennatus. 



Diodon antennatus, Cuv. M6m. Mtis. 1818, p. 131, c. fig. ; Jenyns, 



Zool. Beagle, Fish. p. 151. 

 Chilomycterus antennatus, Kaiip, Wiegrn. Arch. 1855, p. 232, 



Spines strong, but short ; two above the orbit, one, more or less 

 prominent, in the middle of the forehead. Superciliary edge not 

 raised ; generally a tentacle between the superciliary spines. Ten- 

 tacles along the lower part of the side, one on each side and in ad- 

 vance of the anal fin being especially developed. Tail spineless, 

 but the roots of one pair of spines reach across behind the dorsal 

 fin. A black spot in the middle of the nape ; a large kidney-shaped 

 spot above the pectoral, and a subtriangular blotch before and along 

 the base of the dorsal fin ; generally a small black spot below the 

 eye. Some or all of these spots are edged with lighter. Upper and 

 lateral parts with numerous black dots, some with a bluish pupil. 

 Abdomen brown. Fins unspotted. 



Atlantic coasts of tropical America ; Cape of Good Hope. 



a, b. Adult (8 inches). St. Croix. Purchased of Mr. Stevens. 



c-e. Adult : skins, Jamaica. Purchased of Mr. Parnell. 



/. Adult : stuffed. Cape of Good Hope. Presented by Sir A. Smith. 



g. Adult: stuffed. 



h. Adult. 



