308 GYMNODONTES. 



Tropical parts of the Atlantic ; Indian Ocean and archipelago ; 

 Pacific. 



Vctr. a. A broad blackish-brown band between the orbits, ex- 

 tending downwards beyond the eye. A second, parallel to former, 

 across the nape. A large transverse subtriangular spot in the 

 middle of the back. A similar spot on and in advance of the base 

 of the dorsal fin. A kidney-shaped spot above the pectoral. All 

 these bands and spots generally with a light edge. Back and sides 

 with scattered round small black spots. iSpines, especially those in 

 front, long, much longer than the eye. 



a. Nine inches long. St. Croix. Purchased of Mr. Stevens. 



b-f. Half-grown : skins. Jamaica. Purchased of Mr. ParneU. 



(/, h, i. Adult and half-grown. Panama. 



k. Half-growJi. South America. From the Haslar Collection. 



I. Half-grown : stufi'ed. Sandwich Islands. From the Collection 



of the Zoological Society. 

 m. Half-grown. China. Presented by Sir John Pachardson. 

 n. Young. Sooloo Sea. Presented by R. McLachlan, Esq. 

 o-q. Half-grown : stuffed. Indian Ocean. 

 r-t. Adult (10| inches) and half-grown : stuffed. 



Var. /3. Coloration as in a, but the spines are much shorter, 

 the front spines being sometimes shorter than the eye. 



u. Adult. East-Indian archipelago. From Dr. Eleekcr's Collection. 

 V. Adult. Amboyna. Purchased of Mr. Frank. 



Var. y. The large spots and bands very similar to those of var. 

 a and /3, but the ground-colour finely dotted all over with black 

 (Z). qiuulrimaculatus). Frontal spines longer than the eye. 



w. Adult. Amboyna. From Dr. Bleekcr's Collection. 



Var. ^. The large spots are irregular, not well defined, more or 

 less broken up into smaller spots, mixed with other sjwts similar in 

 size and form. Frontal spines longer than the eye {D. muJti- 

 inaculatvs). 



X. Young. West Indies. Purchased of Mr. Scrivener. 



y. Several young specimens. Cape of Good Hope. 



z. Half-grown : stuffed. Capo of Good Hope. Presented by Sir A. 



Smith. 

 a. Young. Bourbon. 



ft. Half-grown. Formosa. From Mr. Swinhoe's Collection. 

 y. Young: stuffed. 



Atopomijcteriis hocarjei, Steindachner, Sitzgsber. Ak. "Wiss. Wien, 

 1860, liii. p. 477, pi. 6. fig. .3, from Port Jackson. The description 

 of this fish agrees so well with that of D. mandatus, tliat it is very 

 probably identical with this species. The nasal tentacle is said to 

 have been simple on one side and bifid at the extremitj' on the 

 other ; nor has the author found nasal openings. 



