284 



GYMNODONTES. 



stripe of spines behind the pectoral fin, the snout, sides, and tail 

 being naked. Snout rather obtuse, the eye being nearer to the end 

 of the snout than to the gill-opening. Distance of the nostril from 

 the eye equal to the diameter of the latter. Interorbital space 

 slightly convex. The diameter of the eye is one-third of the width 

 between the bony orbital edges. Length of the caiidal fin equal to 

 its distance from the anterior margin of the dorsal fin. Upper parts 

 brownish, the upper part of the head and nape with about six pairs 

 of curved black cross bands, their convexity being directed forwards. 

 Back in front of the dorsal fin with two or three incomplete, con- 

 centric, ellipsoid black rings ; the remainder of the upper part of the 

 sides with irregular black spots. Sides, abdomen, and caudal fin 

 whitish, washed with brownish. Dorsal fin immaculate. 

 South America. 



«. Eight inches long. Purchased of Mr. Cuming. 



19. Tetrodon spengleri. 



Seba, iii. tab. 2.3. figs. 7-9. 



Tetrodon spengleri, Bloch, AiisL Fische, i. p. 135, tab. 144 ; Bl. ISchn. 



p. 504 ; Lacep. i. pp. 47G, .501. 

 pkimieri, Larep. i. pp. 470, -504, pi. 20. fig. 3 (bad; the black 



dashes were probably originally intended for the tentacles). 

 marinoratus, Raiizani, Nov. Comm. Ac. Sc. Inst. Bonon. iv. 1840, 



p. 72, pi. 10. fig. 1; Lou-e, Trans. Zool. Soc. ii. p. 193; Valenc. in 



Webb ^- Berthol. lies dinar. Boiss. pi. 20. fig. 2. 



Minute spines on the back from the occiput to halfway to the 

 dorsal fin, and much more numei'ous on the abdomen ; the sides are 

 either entirely naked, or there are only a few minute spines behind 

 the pectoral fin. Head and tail naked. Snout produced, the eye 

 being nearer to the root of the pectoral fin than to the end of the 

 snout. Distance of the nostril from the eye equal to the diameter 

 of the latter. Interorbital space slightly concave, very narrow, the 

 bony portion about half as wide as the eye. Length of the caudal 

 fin equal to its distance from the dorsal fin. Sides with series of 

 small tentacles. Brownish black above, white below ; a series of 

 about twelve round hroiuaish-hJacl- spots uhn<j the lower part of the 

 side, the spots being about the size of the eye. 



Vert. 7/10. Coracoid dilated into a very broad lamina. 



From Madeira and the west coast of Africa to the West Lndies. 



a-b. Adult (7 inches) : stuffed. Madeira. 



c. Adult. Madeira. Presented by the Kev. 11. T. Lowe. — Type of 



T. marnioratus. 



d, e. Adidt. Madeira. 



/. Adult. Lanzarote. Presented by the Rev. R. T. Lowe. 



(J. Young. Cape Verde Islands. Presented by the Rev. R. T. 



Lowe. 

 7/. Adult. West Africa. Purchased of Mr. Dalton. 

 /. Young. Santa Cruz. Presented by Prof. A. Xcwton. 

 /.-. Adidt. Cuba. Prom the Collection of the Zoological Society. 



