MCCULLOCH. , 103 



369e. T. nigropunctatus, var citrinellus. Id. Gunther, Brit. Mus. Cat. 



Fish, viii., 1870, p. 293. T. aurantius Ogilby, Rec. Austr. Mus. i. 4, 



1890, p. 80. 



The type of T. cvurantius is badly stuffed, but leaves little doubt that it is 



referable to the orange-coloured form of T. nigropunctatus. It is the only 



example of the species known from New South Wales, and was doubtless a 



straggler from the tropics. Length 11 inches. 



369f. T. firmamentum. Staery Toado. Id. Schlegel, Faun. Japonica 



Pisces, 1850, p. 280, pi. 126, 2 (PI. xliii. ) . 

 A rare species, occurring in deeper water. Length 16 inches. 



370. Spheroides Dumeril, Zool. Analytique, 1806, p. 342 (tuberculatus) . 

 A. Gill-opening without a cartilaginous spur projecting beyond the margin. 



B. Dorsal and anal fins pointed, their posterior rays less than half as long as 

 the third. 

 C. Back entirely smooth; 11-12 dorsal rays. inermis (370a). 



CC. Back with more or less numerous spinules. 



D. Caudal peduncle wider than deep immediately behind dorsal fin: 



10-12 dorsal rays. sceleratus (370b). 



DD. Caudal peduncle deeper than wide immediately behind dorsal fin: 



12 dorsal rays. spadiceus (370c). 



BB. Dorsal and anal fins subquadrangular or rounded, the posterior rays more 



than half as long as the third. 



E. Back without dark spots, but with cross-bands. 



F. Nape with small spines. oblongus (370d). 



FF. Nape without spines. pleurostictus (370e». 



EE. Back with numerous dark spots; dark cross-bars usually present. 



hamiltoni (370f). 

 AA. A cartilaginous spur projecting backward beyond margin of lower half of 

 gill opening; a dark stripe along each side, back with light spots. 



\pleurogramma (370g>. 



370a. S. inermis. Smooth Toado. Tetrodon inermis Schlegel, Faun. 



Japonica Pisces, 1850, p. 278, pi. 122, 2. 

 A smooth silvery fish, which, like all others of the genus, is said to be 

 poisonous if eaten. Length 18 inches. 



370b. S. sceleratus. Giant Toado. Tetrodon sceleratus Grnelin, Syst. 



Nat. ii., 1789, p. 1444. T. argenteus Bleeker, Atlas Ichth. v., 1865, p. 



64, pi. 209, 1 (PL xliii.). 

 A widely distributed species extending southward to Port Jackson. Length 

 30 inches. 



370c. S. spadiceus. Silver Toado. Tetrodon spadiceus Richardson, Yoy. 



Sulphur, Ichth., 1844, p. 123, pi. 58, 4-5. 

 Occurs in deep water and is often taken by trawlers. Length about 12 

 inches. 



370d. S. oblongus. Tetrodon oblongus Bloeh, Ausl. Fische ii., 1786, p. 6; 



Id, Bleeker, Atlas Ichth. v., 1865, p. 62, pi. 208, 4. 

 Taken in deep water by trawlers. Length 15 inches. 

 370e. S. pleurostictus. Banded Toado. Tetrodon pleurostictus Gunther, 



P. Zool. Soc. 1871, p. 674, pi. 69, a. 

 Common in the estuaries of northern rivers. Length 6 inches. 



370f. S. hamiltoni. Common Toado. Tetrodon hamiltoni Richardson, 



Ichth. Erebus & Terror, 1846, p. 63, pi. 39, 10-11 (PI. xliii.). 

 Very common in all shallow waters along the coast. Length 5$ inches. 



