•"5. TlMllODOX. 273 



between the end of the snout and tlie gill-opening. Interorbital 

 space very broad. Nostrils? The length of the head is rather less 

 than its distance from the dorsal, which is of moderate size, nine- 

 rayed (?). Caudal fin slightly eniarginate. Brownish grey above, 

 with small scattered whitish spots in small number. 



West Africa. 

 a. Stuffed, 20 inches long. C-ambia. Purchased of Mr. Whitely. 



The typical specimen of Bennett's 7'. guttifer appears to be lost ; 

 yet T do not hesitate to identify our specimen with Bennett's species, 

 as the diagnosis given by him agrees well enough with it. He did 

 not perceive the osseous scutes which in fresh specimens may be 

 hidden below the skin, or be entirely absent in younger examples. 



II. No scutes formivy a carapace. 



1. Nasal organs vert/ conspicuous. Back broad, noi coinpressed. 



A. Nasal openings two on each side, opposite to each other, ajid situated in a 

 single more or less prominent j)apill(i. 



a. A more or less distinct fold of the skin along the lower part of the tail : 

 ^Tastrophysus (Miill.). 



2. Tetrodon lagocephalus. 



Seha, iii. pi. 23. fig. G (young). 



Tetrodon lagocephalus, L. ylnuen. Acad. i. p. 310, tab. 13. fig. 4 (bad ), 



and Sy.'^t. Nat. i. p. 410 (not svnon.) ; Pen7i. Brit. Zoul. ed. 1812, 



iii. p. 174, pi. 23. 



loevigatus, Penn. Brit. Zool. iii. p. 132, pi. 20. 



stellatus, Donov. Brit. Fish. iii. pi. GO; Turton, Brit. Faun. 



p. IIG ; Flem. Brit. An, p. 174 ; Jenyns, Man. p. 489. 

 Lagocephalus pennantii, (Swains.) Bonap. Faun. Ital. 

 Tetrodon pennantii, Yarr. Brit. Fish. 2nd edit. ii. p. 457 ; Couch, 



Fish. Brit. Isl. iv. p. 373, pi. 244. 



Body entirely naked above and on the sides ; abdomen covered 

 with fixed four-rooted spines of moderate size. The length of the 

 head less than its distance from the dorsal. Caudal fin emarginate. 

 Ujiiform greenish above, sides silvery, sometimes with round blackish 

 spots ; abdomen white. Young with eight or nine cross bands on 

 the back, and generally with black spots on the belly. 



East-African coasts ; Irish and English coasts, 



a. Adult : stuffed. Algoa Bay. Presented by the Zoological Society. 



b. Adult (19| inches): stuffed. South Africa. Presented by Sir 



A. Smith. 



c. Half-grown : stuffed. Mauritius. From the Collection of the 



Zoological Society. 



d. Adult: stuffed. Charmouth, Dor.setsliire. Presented by H. E. 



Norris. Esq. 



e. Adult : skin. 

 /. Young : skin. 



(J. Very young (2 inches). Fro'" t' • Hasbir Collection. — This ex- 



VOL. VITI. X 



