704 PLECTOGNATHI. 



Tefroihn immaeidat'is, Bl. Sclm. p. 507 ; Cuv. Regn. Anim. ; Cantor, Malay. Fish. p. 373 ; Bleeker, 

 Beng. p. 78 ; Jerdon, M. J. L. and Sc. 1851, p. 150 ; Giinther, Catal. viii, p. 291 ; Klunz. Fische Roth. Meer. 

 1871, p. 642. 



Tetraodmi, Russell, Fish. Vizag. i, p. 19, and Kappa, pi. xxvd. 



Tetraodon sordidus, Riipp. Atl. Fisuhe, p. 64, and N. W. Fische, p. 60, t. xvi, f. 4. 



Arothron sordidus, Riipp. Verz. Senck. Mu.s. Fische, p. 35. 



Tetraodon parvus, De Joannis, Mag. Zool. 1835, iv, pi. xv. 



Tetraodon scaler, Eyd. and Soul. Voy. Bonite, Poiss. p. 214, pi. x, f . 1. 



Tetrodon aspilos, Bleeker, Beng. p. 78, Riouw, p. 495, and Blootk. p. 23, 



Tetrodon kunhardti, Bleeker, Tetraod. p. 97, and Blootk. p. 23. 



DiJoboniycterus immacul atus (Hibron) , Dumeril, Rev. Zool. 1855, p. 279. 



Arothron scaler and immaculatus, Bleeker, Halmah. p. 112, and En. Pise. pp. 201, 202. 



Crayracion immaculatus, Bleeker, Atl. Ich. v, p. 76, t. ccxi, f. 1. 



B. — Variety with parallel lines on the hod.y or spot on the head. 



Tetrodon ManiUensis,_ Proce, Bull. Philom. 1822, p. 130. 



Tetrodon virgatus, Richards. Voy. Ereb. and Terror, Fish. p. 62, pi. xxsix, f. 8, 9, and Voy. Herald, 

 Zool. p. 163, pi. xxviii, f. 6-8 ; Bleeker, Blootk. p. 24, and Moluk. p. 299. 



Holricanthus pilosus, Gronov. ed. Gray, p. 28. 



Dilobomycterus longicaudus, Bibron, Rev. Zool. 1855, p. 279. 



Arothron virgatus, Bleeker. En. Pise. p. 202. 



Crayracion Manillensis, Bleeker, Atl. Ich. v, p. 69, t. ccviii, f. 2. 



Crayracion Gochiuensis, Day, Proc. Zool. Soc. 1865, p. 314, and Fish. Malabar, p. 258. pi. xx, f. 2 

 (a white spot over eye). 



D. 9-10, P. 17-18, A. 8-10, C. 9-10. 



Length of head equals its distance from the base of the dorsal fin. E'les — situated in about the middle 

 of the length of the head, the interorbital space broad and flat. Teeth— oi about equal size in botli jaws. Fins 

 — rounded, the dorsal is situated in the last third of the total length excluding the caudal fin, its height equals 

 about 1/2 the length of the head. Caudal rather elongated, being equal to 1/4 of the total length. Spines — 

 small, covering the body except the snout and the posterior half of the tail. Colours — greenish superiorly: 

 brownish along the middle of the side, and dirty white below : upper and lower edges as well as the end of the 

 caudal black. In some there is a white spot over the eye : occasionally there are several parallel grayish 

 longitudinal bands on the sides. In some examples all the spines are white. 



Halitaf. — From the Red Sea, through the seas of India to the Malay Archipelago, and beyond : 

 attaining at least 12 inches in length. 



9. Tetrodon nigropunctatus, Plate CLXXX, fig. 4. 



Bl. Schn. p. 507; Giinther, Catal. viii, p. 293 ; Klunz. Fische Roth. Meer. 1871, p. 643. 



Tetraodon trichoderma, Bleeker, Sumatra, p. 532. 



Tetraodon trichodermatoides, Bleeker, Flores, p. 336. 



Arothron trichoderma and trichodermatoides, Bleeker, En. Pise. pp. 201, 202. 



Arothron melanorhynchus, Bleeker, Halmah. p. Ill, and En. Pise. p. 201. 



Crayracion nigropunctatus, Bleeker, Atl. Ich. v, p. 74, t. ccvi, f. 4. 



B. V, D. 10, P. 18, A. 9, C. 9. 



Length of head nearly equals its distance from the base of the dorsal fin. Eyes — rather small, about 

 two diameters from the end of the snout and about three apart : interorbital space nearly flat, and the osseous 

 portion less than two diameters of the eye wide. Teeth — of about the same size in both jaws. Fins — dorsal 

 situated in the last fourth of the body excluding the caudal fin : it and the anal are rounded. Caudal rounded 

 and equal to about 1/6 of the total length. Spines — small, and usually cover the entire body, they are either 

 much projecting or almost concealed in the skin : the extent over which they extend also varies, in fact they 

 appear to be absent in some examples. Colours — brown above, becoming lighter on the sides and beneath : 

 some scattered black dots over the bodj-, and the vent in a black spot : the snout and round the mouth black 

 or very dark brown : the spots in some examples are absent. In one variety termed citrinella, Giinther, 1. c. 

 the entire body is of a beautiful lemon colour. Besides the scattered spots on the sides, there are some 

 irregular small and large black spots on the back : one large blotch round the base of the dorsal fin, which 

 also is black. A large round black spot round the eye and gill-opening. (Giinther, 1. c.) 



Habitat.— Hed Sea, and East coast of Africa, through the seas of India to the Malay Archipelago, and 

 beyond. It attains at least to nine inches in length. The example figured (life-size) was from Madras. 



