Waite — Fishes of South Australia 



11 



Fig. 6. Heterodojitiis pJii 



are often stained with colour from the spines of sea urchins: the egg-cases are 

 formed of a double spiral. 



Family CARCHARINIDAE. 



CARCHARINUS Blainville, 181 G (commersoni). 



CARCHARINUS GANGETICUS Miiller & Henle (Sea Shark). 



Carcharias gangeticus Miill. & Henle, Plagiost., 1838, p. 39, pi. xiii; Day, Fish. 



India, 1878, p. 715, pi. elxxxvii, fig. 1. 

 Carcharinns gangeticus Garm., Mem. Mns. Comp. ZooL, xxxvi, 1913, p. 139. 



Fig. 7. Corcharinus gangeticus. 



Though known from Australian seas, this species is much more common in 

 Indian waters, where it attains to nine feet in length. It is one of the most 

 ferocious of Indian sharks and frequently attacks bathers, even in the Hoogly 

 at Calcutta. 



