FAMILY, II— GTMXODONTES. 707 



14. Tetrodon viridipunctatus, Plate CLXXVI, fig. 5. 



Leiodon viridipumtatus, Day, Proo. Zool. Soc. 1865, p. 315, and Fishes of Malabar, p. 258, pi. 20, f. 2. 



Tetrodon viridipunctatus, Giinther, Catal. viii, p. 289. 



B. v,D. 12, P. 18, A. 11,0. 11. 



Length of head equals its distance from the base of the dorsal fin : caudal fin 1/5 of the total 

 length. iJ^es — diameter 1/5 of length of head, rather nearer to gill-opening than to the end of the .snout. 

 No.strils two solid tentacles.* Fins ~edl are rounded. S^JtBes— two-rooted, short, some distance asunder, 

 they commence from the occiput, and pass along the back two-thirds of the way to the commencement of the 

 doi'sal fin : none on the sides. Interiorly they begin below the orbit, surround the lower and posterior margin 

 of the pectoral fin, and are continued backwards as far as the anus. Colours — back light green : abdomen 

 silvery- white : back and sides covered with emerald green spots : a bar of the same colour passes across the 

 vertex from one eye to the other, and also goes backwards in the median line towards a second irregular band 

 of the same colour, which passes across the back more posteriorly. Eye brown, with a golden rim surrounding 

 the iris. Caudal and anal tipped with black : dorsal yellowish : four black spots under the throat. 



Habitat. — Cochin on the Malabar coast. 



15. Tetrodon fluviatilis, Plate CLXXXIII, fig. 1. 



Tetrodon fluviatilis. Ham. Buch. Fish. Ganges, pp. 6, 362, pi. xxx, fig. 1 ; Swainson, Fishes ii, p. 328; 

 Bleeker, Beng. p. 78 ; Giinther, Catal. viii, p. 292 ; Steind. Sitz. Ak. Wein. 1870, isi, p. 6-iO, t. v, f. 2. 



Tetrodon nigroviridis, Proce, Bull. Philom. 1822, p. 130. 



Tetrodon simulans, Cantor, Catal. Fish. p. 374. 



Tetraodon potamophilus, Bleek. Madura, p. 16, and Blootk. p. 17. 



Arothron potamophilus and simulans, Bleeker, En. Pise. pp. 201, 202. 



Biclwtoimjderus fluviatilis (Bibron), Dumeril, Rev. Zool. 2nd Serie, 1855, p. 279. 



Arothron dorsovittatus and simulans, Blyth, Journ. As. Soc. Beng. xxix, 1860, p. 173. 



Crayraciim fluviatilis, Bleek. Atl. Ichth. v. p. 68, pi. ccx, fig. 4 ; Day, Fish. Malabar, p. 256 ; Steind. 

 Sitz. Ak. Wiss. 1870, p. 18, t. v, f. 2, 2a (var. ocellata). 



B. V, D. 14-16, P. 22, A. 12-13, C. 11. 



Length of head equals its distance from the base of the dorsal fin. Eyes — rather large, and from 1^ 

 to 2 diameters from end of snout : the interorbital space broad and slightly convex. Teeth — of about the same 

 size in both jaws. Fins — dorsal situated in the last third of the distance between the eye and base of 

 caudal fin. Caudal fin truncated, its length being 1/4 of the total. Spines— with two roots, widely separated, 

 concealed in the skin, and extending ft-om the hind edge of the eyes to the base of the dorsal fin, also over 

 cheeks and abdomen as far as the vent. Colours — greenish-olive superiorly, becoming white along the sides 

 and below : back and sides with large black blotches, leaving very little of the ground colour apparent : one or 

 two irregular light bands, one crossing between the eyes, another between the pectorals, and often one or two 

 more over the back : abdomen covered with round or angular black spots and blotches much wider than the 

 ground colour, sometimes it is quite black beneath : fins yellowish, end of caudal stained dark and sometimes 

 with black spots. 



According to Bleeker, examples from the Malay Archipelago, have fewer rays than those from India, 

 he gives D. 12-14, A. 11-12. 



Eahitat. — Seas and estuaries of India to the Malay Archipelago, and beyond. It attains at least 6^ 

 inches in length. 



e. Nasal organs inconspicuous : lach compressed into a heel (Anosmius, Peters). 



16. Tetrodon margaritatus. 



? Tetrodon electricus, Gmel. Linn, i, p. 1445 ; Bl. Schn. p. 507. 



Tetraodon margaritatus, Riipp. Atl. Fische, p. 66 ; Bleeker, Moluk. p. 302, and Blootk. p. 25 ; Giinther, 

 Catal. viii, p. 300 (pt.) ; Klunz. Fische Roth. Meer. 1871, p. 646. 



Tetrodon Solandri, Richards. Voy. Sulphur, Fish. p. 125, pi. Ivii, f. 4-6, and Voy. Samarang, Fish. p. 19. 



Tetrodon insignitus, Richards. Voy. Samarang, Fish. p. 20, pl. ix, f. 1, 2. 



Tetrodon ocellatus, Bennett, Fish. Ceylon, p. 21, pl. xxi (not Bl.). 



Tetrodon Petersii, Bianconi, Mem. Acad. Sc. Inst. Bonon. vi, 1855, p. 147, t. ii, f. 2. 



Tetrodon ocellatus, Peters, Wiegm. Arch. 1855, p. 274, and Monats. Ak. Wiss. Berl._ 1855, p. 462. 



Tetraodon papua, Bleeker, Sumbaw. p. 638, and Blootk. p. 13 ; Giinther, Catal. viii, p. 301. 



Aiwsmius ocellatus, Peters, Fische Mossam. i, p. 274. 



* The single example being stuffed, the nostrils had become dried, and the figure and description formerly given are 

 erroneous as regards this character, as I have ascertained alter macerating the sjjecimen some weeks in spirit. 



4x2 



