146 



"ENDEAVOUR" SCIENTIFIC RESULTS. 



Mouth of Wide Bay; July 15, 1910. 



Four others are in the Australian Museum collection, of which 

 three were trawled in Port Jackson, and one in Port Stephens, 

 New South Wales. 



INSIDIATOE HAERISII, sp. >ioi\ 

 (Plate xxx., fig. 1 ; Fig. 12.) 



Br. 7 ; D. ix. 11-12 ; A. 11-12 ; P. 20-25 ; V. i. 5 ; C. 1 1-13 : 

 L. lat. 53. Head 2.61-2.86 in the length to the hypural. Bye 

 4.24-4.48 iii the head, and 1.2 in the snout, which is 3.71-3.53 

 in the head. Interorbital width 3.22-4.16 in the eye. Third 

 dorsal spine 2.76-2.46 in the head. 



The ridges of the head are moderately prominent and smooth, 

 and end in low spines. A strong anterior orbital spine ; 

 posterior half of supraorbital ridge with eight to ten small 

 denticles. Interorbital space moderately concave. Two post- 

 ocular spines on each side, from the inner of which a series of 

 low, radiating ridges extends backwards towards two medio- 

 lateral spines on the cranium ; from the outer ones a sinuous 

 ridge runs backwards to the suprascapular, which is armed with 

 about three spines. One or more very small spines on the 

 ridges between the anterior nostrils. Bony stay of the cheek 

 arising in a star-shaped cluster of bony ridges on the preorbital : 

 it is armed with two distinct spines, one a little before the 

 middle of the eye, and the other behind its hinder margin : 

 several smaller denticles may also be present. Preoperculum 

 armed with two short spines, the upper the longer, its length less 

 than the width of the interorbital space ; a slightly projecting 

 angle of the bone below these perhaps represents a third spine. 

 Opercular ridges smooth, terminating in spines. 



Fig. 12. Itmldiator harrisii. Head and teeth. 



Anterior nostril with a short, tentacle, the posterior tubular ; 

 no supraocular tentacle. A skinny lobe may or ma}' not be 

 present on the lower border of the operculum Teeth minute, 

 granular and subequal, forming a broad band on the upper jaw, 

 and a narrower one on the lower ; two parallel groups on the 

 vomer, and a rather narrow band on each palatine. 



