8 PISH AND FISH-LIKE ANIMALS OF N.S.W., 



N.S.W. x, 1885, p. 445; Catulus analis Waite, Mem. Aust. Mus. iv. 1, 

 1899, p. 31, pi. 2, i. (PI. ii.). 

 A deeper watei species, often taken by the trawlers, which rarely grows above 

 two feet long The young are produced from eggs. 



XI. Family Alopiidae. 



20. Alopias Rafinsq., Caratt. Gen. Spec. Sicilia, 1810, p. 12 (macrourus). 

 20a. A. vulpinus. Thresher Share. Squalus vulpinus Bonnat., Encycl. 



Meth., Ichth., 1788, p. 9 ; Vulpecula marina Garinan, Mem. Mus. Comp. 



Zool. xxxvi, 1913, p. 30, pi. 7, 1-3. (PI. ii.). 

 Distributed over all warm seas, and occasionally seen off our coast. Grows to 

 fifteen feet in length, half of which is made up of the greatly elongated tail; this 

 last is used to splash the surface of the sea near a shoal of fish so as to frighten 

 them together. A common idea that the Thresher attacks whales apparently rests 

 upon erroneous observations. 



XII. Family Cahchariidae. 



21. Carcharius Rafinesque, Carratt. Gen. Spec. Sicilia, 1810, p. 10 {taunts). 

 21a. C. arexarius. Grey Nurse. Id. Ogilby, Ann. Qld. Mus. x, 1911, p. 37; 



Odontaspis taurus McCoy, Prodr. Zool. Vict. dec. vii, 1882, pi. 64, 1. 

 A very common shark on the coast, where it chases schools of fish near the 

 beaches. It is sai 1 to occasionally attack man, and to reach a length of fifteen 

 feet. 



21b. C. tricuspidatus. Blue Nurse. Id. Day, Fish. India, 1878, p. 713, pi. 



186,1. (PI. ii.). 

 Grows to over twelve feet in lengfh. 



XIII. Family Isuridae. 



A. Teeth awl-shaped, with smooth edges. Isurus (22). 



AA. Teeth large and triangular, with serrated edges. Carcharodon (23). 



22. Isurus Ratiuesque, Caratt. Gen. Spec. Sicilia, 1810, p. 11 (oxyrhynchus) . 

 22a. I. glaucus. Blue Pointer. Oxyrhina glauca Mull. & Henle, Plagiost 



1838, p. 69, pi. 29. (PI. xvii.) 

 Said to be common in Port Jackson, and to reach a length of twelve feet. 



23. Carcharodon Muller & Henle, Mag. Nat. Hist. (2) ii. 1838, p. 37 {ronde- 



letii). 

 23a C. carcharias. White Shark. Squalus carcharias Linne, Syst. Nat. 

 10th. ed., 1758, p. 235; C. carcharias Garman, Mem. Mus. Comp. Zool. 

 xxxvi, 1913. p 32, pi. 5, 5-9. (PI. ii.). 

 A fierce and destructive species which attains a length of forty feet. It ranges 

 over all warm and temperate seas, and has been recorded on several occasions from 

 our waters. Fossil teeth of a closely allied species indicate that a very recently 

 extinct relative of this shark must have readied at least eighty feet in length. 



XIV. Family Cetorhinidae. 



24. Cetorhinus Blainville, Bull. Soc. Philom. viii, 1816, p. 121 (gunneri). 

 24a. C maximus. Basking Shark. Squalus maximus Gunner, Trondhj. 



