KISIIKS WAri'K. 1)1 



sliu'lil (lisl,url);iiii'(i ot" the wader. 'I'lui whole ;Li)[)eai'iUice. of (Ik; 

 (lory in Ihesii aetions is suggestive uf suppressed exciteiiKJiit, his 

 eyes being fixed on liis prey. T do ncjt recolhjct seeing iiini 

 actually swallow anotlier Hsh, but hasc no doubt that lie gets 

 near enough to a sprat for example, without alarming it, to seize 

 it by the sudden elongation of his cui'ious jaws." 



Fainilu MONACANTHID^. 



M O N A C A N T II U S, Cuvier. 



MONAGANTHUS AYRAUDI, Quoy & Gaimard. 



Common Lbatherjacket. 



Moiiaccuithus ai/ratidi, Quoy & Gaim., Voy. I'Uranie, Poiss., 1824, 

 p. 216, pi. xlvii., fig. 2. 



Stations 1, 2, 4, 5, 7, 8, 9, 10, 11, 12, 15, 17, 20, 21, 22, 26, 

 27, 28, 33, 44, 52, 54, 57. 



Previously the known range of this species was summed uj) in 

 the following words : — " The only localities from which this species 

 can be recorded with certainty are the metropolitan district of 

 'New South Wales and King George's Sound " (Ogilby). It was 

 taken by us all along the coast line from the Manning River to 

 Jervis Bay, and at all depths from 10 to 84 fathoms. Wherever 

 lines were put over on the reefs this ubiquitous species was hooked, 

 and proved as irritating as usual, cutting lines and gut with its 

 sharp teeth, or monopolising the bait intended for Schnapper and 

 other esteemed fish. Young and half-grown examples were freely 

 netted, while the adults reached a length of 510 mm. ( = 20 inches). 



MONOCANTHUS SETOSUS, sp. nov. 



(Plate xvi.) 



Station 49. 



D. 34. A. 34. P. 12. C. 12. 



Length of head 3-7, height of body 2-3 (or 1-7 when ventral bone 

 is extended), length of caudal 3-4 in the total. The eye is large, 

 2 8 in the length of the head, and equal to the interorbital space, 

 which is slightly convex : it lies nearer to the snout than to the 

 dorsal rays. 



