207 



TETEODOjS" hamiltoni. 

 Tetrodon Hamiltoni, Richard., Erebus Sf Terror, p. 63, pi. 39. 

 {Toad Fish.) 

 The dorsal is formed of nine rays, and the caudal also of nine ; 

 the anal of eight ; and the pectorals of fifteen. The body is covered 

 with small pores, and is pretty smooth. 



The upper parts are green, marbled with a darker tinge ; the 

 lower white ; fins of a greenish yellow ; eye of a yellowish green, 

 with an interior bright red line. 



The usual size is from four to five inches, some adults measure 

 up to nine. Very common. It sometimes goes up the river to 

 Melbourne. 



TETEODON" HISPIDTTS. 



Tetrodon Hispidus, Lin. Syst. Nat., vol. i., p. 411. 



Lacep. vol. i., p. 487, pi. 24, fig. 1. 



Bloch, pi. 142. 



{Toad Fish.) 



Dorsal of eleven rays ; caudal rather emarginated, of eleven 

 rays ; anal of six ; pectorals of thirteen. 



The entire body is covered with very minute spiny asperities 

 upper parts of a greyish green, the lower of a pinky white ; 

 numerous large irregular brown blotches on the upper part • lips 

 rosy ; dorsal white, with its internal half green ; caudal with a 

 green tinge ; anal white ; pectorals of a light green, with a pink 

 tinge on its external edge ; eye blue, with a lower brown external 

 line. 



ARACANA. 



Separated from Ostracion by Grey, on the character of the 

 carapace not being closed behind the anal fin. This is easily 

 seen in preserved specimens, but does not appear externally in 

 fresh ones. These fish are mostly Australian, and are adorned 

 with beautiful colours. 



ABAC AN A AM(ENA. 



Carapace with five ridges, the abdomen forming an inferior 

 one ; spines short, thick, conical, blunt, and not arched, placed one 

 above the orbit, and directed externally ; two on each side of the 

 back directed posteriorly ; below these are others much shorter 



