Zoology.'] 



NATURAL HISTORY OF VICTORIA. 



[Fishes. 



Measurements — continued. 



Length of base of 2nd dorsal 



„ of pectoral 

 Greatest width of pectoral 

 Depth of ventral ... 

 Greatest width of ventral ... 

 Depth of anal 

 Greatest width of anal 

 Greatest depth of caudal (anterior lobe) 

 Space between 1st and 2nd dorsal ... 



„ „ 2nd dorsal and caudal 



„ „ pectoral to ventral ... 



„ „ ventral to anal 



„ „ anal to caudal 



Diameter of orbit 

 Length of snout ... 



„ of ovate flap 

 Greatest width of flap 

 Depth of body 



Reference. — = Callorhynchus (Gronov.), Mus. Ichth., v. 1, p. 59, t. 4 = 

 Chimcera callorhynchus, Lin. Syst. Nat. = Chimcera Antarctica, Lacep. Hist. 

 Poiss., v. 1, p. 400, t. 12, f. 2 = C. Australis, Shaw Gen. Zool., v. 5, p. 368 = C. 

 Tasmanius, Rich. Trans. Zool. Soc, v. 3, p. 696. 



The two rows of spines on the back between the dorsals may 

 be distinctly felt in most of the large female specimens, but they 

 are not perceptible in a male specimen of smaller size before me. 

 The pectorals seem slightly smaller in the males, and do not extend 

 quite so far towards the ventrals. The curious grasping organ on 

 the forehead of the male arises by a widely bifurcate base between 

 the eyes a little behind the anterior edge of the orbit ; its middle 

 portion is oblong, about three-fourths the diameter of the orbit in 

 length, about half as wide as long, narrowed and rounded towards 

 the front, where it is very convex below and set with recurved 

 spines ; the hollow into which it can be depressed is set with 

 recurved spines at its anterior end. 



This fish is tolerably common along tne coast, and is frequently 

 called Elephant Fish by the fishermen. 



Explanation of Figures. 



Plate 112. — Fig. 1, side view of female specimen, one-fourth of the natural size. Fig. la, 

 the same, viewed from above, to show the shape of the black markings and course of the 

 porous lines on top of head. Fig. lb, front view of head, natural size, to show the position of 

 the nostrils and grinding plates of mouth, the added outline showing position of the flap of the 

 snout. Fig. lc, side view of dentary plates of. upper and lower jaws, natural size. Fig. Id, 

 dentary plates of upper jaw, grinding surface, natural size. Fig. le, inner view of grinding 

 surface of dentary plates of lower jaw, natural size. Fig. \f, side view of flap at end of snout, 

 natural size. Fig. la, front view of ovate snout-flap, natural size. Fig. 1A, side view of frontal 

 grasping process of male, half the natural size, shewing the tooth-like spines at its distal end, 

 raised up from the spinose cavity, into which it fits. Fig. It, side view of dorsal spine, natural 

 size. Fig. Ik, section of dorsal spine. 



Frederick McCoy. 



52 ] 



