STUDIES IN AUSTRALIAN SHARKS — "WAITE. 



31 



retracting them and closing the eyelids when it is removed from 

 the water. 



It was originally described from Queensland, but does not 

 appear to have been since noticed there. On our coast, in addi- 

 tion to the metropolitan area, it is now known to be common at 

 Port Macquarie, and is doubtless numerous in suitable situations 

 all along the coast ; so far we have not received it from localities 

 south of Botany Bay. 



The fcetus figured, of natural size, measures 162 mm. in length. 

 The following are the principal dimensions of an adult specimen, 

 a male, obtained at Lillipilli, near Maroubra Bay, on 3rd March, 

 1901:- 



Total length 620 



Length of head to 1st gill-slit ... ... 83 



rnh „ 118 



Width of head 90 



Snout to eye, front margin ... ... 40 



Diameter of eye ... ... ... ... 12 



Snout to spiracle ... ... ... ... 52 



Diameter of spiracle ... ... ... 10 



Snout to mouth ... ... ... ... 30 



Width of mouth 48 



Length of cirrus ... ... ... ... 24 



Circumference of body (behind pectorals) 233 

 Height of body ... ... ... ... 60 



Length of snout to vent ... ... ... 270 



Snout to 1st dorsal fin ... ... ... 270 



Length of 1st dorsal tin (base) ... ... 58 



,, „ front margin ... 86 



,, ,, posterior margin ... 53 



Snout to 2nd dorsal tin ... ... ... 368 



Length of 2nd dorsal tin (base) ... ... 49 



,, „ front margin ... 80 



,, ,, posterior margin ... 47 



Intradorsal space ... ... ... ... 40 



Snout to pectoral tin ... ... ... 110 



Length of pectoral fin ... ... ... 85 



Width of pectoral fin ... ... ... 65 



Snout to ventral fin ... ... ... 240 



Length of ventral tin ... .. ... 90 



Width of base, ventral fin ... ... 55 



,, margin, ventral fin ... ... 68 



Snout to anal fin ... ... ... ... 420 



Length of anal fin ... ... ... 57 



,, base, anal tin ... ... ... 40 



„ caudal fin ... ... ... 160 



Height of caudal fin ... ... ... 48 



Length of basal lobe ... ... ... 1 20 



