366 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



the under surface yellow, with a rather sharp line of demarcation ; 

 a broad black band extends between the eyes, another broader 

 across the back between the pectorals, a third across the back at 

 the dorsal fin, and a fourth on the back of the tail. 



This species judging from the number in the collection, must 

 be very common at Port Darwin. They average about 4 inches 

 in length. 



107. — DlODON MACULATUS, LdCep. 



Gunth. Cat. Fish., Vol. VIII, p. 307. 



Paradiodon novemmaculatus, Bleek. Atl. Ichth. Gymnod., p. 57, 

 tab. 2, fig. 3. 



Paradiodon quadrimaculatus, Bleek. Atl. Ichth. Gymnod., p. 

 58, tab. 8, fig. 2. 



Family CARCHARID^E. 



108. — Carcharias hemiodon, Mull. 



Gunth. Cat. Fish., Vol. VIII, p. 362. 



I have two specimens of what I take to be this shark ; a large 

 one with the tips of all the fins quite black, and a small one with- 

 out any trace of such marking. 



Family SCTLLIID^]. 



309. — Scyllium maculatum, Bl. 

 Gunth. Cat. Fish., Vol. VIII, p. 401. 



Family RHINOBATIDiE. 



110. — Rhinobatus granulatus, Bl. 



Gunth. Cat. Fish., Vol. VIII, p. 443. 

 A young specimen. 



Family TRYGONIDJE. 

 111. — Trygon uarnak, Forsh. 



Gunth. Cat. Fish., Vol. VIII, p. 473. 



My only specimen is without any trace of a spine on the tail, 

 and yet in every other respect it answers exactly to the descrip- 

 tions given of the species. 



112. — Trygon pastinaca, L. 

 Gunth. Cat. Fish., Vol. VIII, p. 478. 



