3. TBTRODON. 287 



c. Nofuld along the luiccr parts. Skin eiitirelt/ smooth : Liosaccus, vi. 



24. Tetrodon cutaneus. 



Skin entirely smooth, thin, forming innumerable very fine longi- 

 tudinal wrinkles on the back and sides ; no fold along the lower side 

 of the tail. Snout obtuse, rather long, the eye being much nearer 

 to the gill-opening than to the end of the snout. Eye of moderate 

 size, with free orbital fold, two-ninths of the length of the head, two- 

 fifths of that of the snout, and not much less than the width of the 

 interorbital space, which is flat. The lengtli of the head is rather 

 more than its distance from the dorsal fin, which is small, nine-rayed. 

 Caudal fin short, truncated. Upper parts and sides uniform greenish 

 grey, the lower white. Two lateral nostrils in a short tube. 



St. Helena ; ? Cape of Good Hope. 



a-6. Adult. St. Helena. Presented by J. C. Melliss, Esq. (xxxiii.). 

 c. Stuffed, 12| inches long. ?Cape of Good Hope. Presented 

 by Sir A. Smith. 



25. Tetrodon pachygaster. 



Tetrodon (Cheilichthys) pachygaster, Mull. ^- Trosch. in Schomhurgk, 

 Barhadoes, p. 677. 



D. 10, Smooth all over, of a light brown colour, with darker 

 spots on the back. The space between the eyes is equal to two dia- 

 meters of the eye, and the space to the top of the snout is of similar 

 extent. The nostrils arc nearer to the eye than to the snout, and 

 they are papillary, with two apertures. The dorsal fin stands before 

 the anal ; the caiidal is truncated, but the upper and lower points 

 are somewhat elongated. 



Length 14 inches. It is a very scarce species around Barhadoes. 



26. Tetrodon porphyreus. 



Tetraodon porphyreus, Schleg. Faun. Japan. Poiss. p. 282, pi. 121. 

 fig. 1. 

 Skin entirely smooth, without spines or tubercles. No fold or 

 lateral line along the lower i)art of the tail. Pourteen dorsal 

 rays. Above brownish, with minute whitish dots ; below whitish. 

 (Schleg.) 

 Japan. 



27. Tetrodon angusticeps. 



Tetrodon angusticeps, Jeni/ns, Voy. Beagle, Fish. p. 154, pi. 28. 

 Anchisomus angusticeps, Richards. Vog. Jlerakl, Fish. p. 159. 



Skin entirely smooth, but harsh to the finger when draMu over it 

 in an atlantal direction; and under a lens it is seen to be di\idcd into 

 minute, sHghtly elevated, flattish areas of very irregular form, but 

 mostly tending to the orbicular. Two small skinny appendages a 

 little behind the transverse line on the nape (according to Jenyns ; 

 but Richardson states that there are five such processes, not symme- 

 trically disposed, and seemingly the effects of the attacks of some 



