FISHER. MCCUTjLOCH. 123 



Marsden Point, Kangaroo Island, South Australia. 



Flinders Island, Investigator Group, South Australia, 37 

 fathoms. 



I have also examined specimens from near Sydney, Queens- 

 cliff in Victoria, and from northern Tasmania. 



AMMOTRETJS EI.ONGATUS, sp. nov. 

 (Plate xxvii.) 



D. 74-75 ; A. 50-51 ; P. 8-10 ; V. dex. 13 ; V. sin. 3-4. 

 Depth 2j, head 4| in the length from the upper jaw to the 

 hypural. Eye equal to its distance from the tip of the upper 

 jaw, and 4|-5 in the length between that point and the end of 

 the operculum. Pectorals of equal length, nearly half as long as 

 the head. Caudal about as long as the head. Longest dorsal 

 and anal rays about If in the head. 



Scales of the upper side almost all cycloid, only a few on the 

 head and near the margins of the body being ctenoid ; on the 

 lower side the ctenoid scales are more numerous. The scales 

 extend over the greater part of all the rays except those of the 

 pectoral and the anterior dorsal and ventral ones. The lateral 

 line is almost straight, being only very slightly curved over the 

 pectoral ; its origin is a little below the upper margin of the 

 upper eye. There are about ninety pores, and as many scales 

 along its length as far as the hypural, and from thirty-three to 

 thirty-nine on either side of it across the widest part of the 

 body. 



Lower eye a little in advance of the upper. Maxillary not 

 reaching back to the orbital margin ; lower lip with a few 

 simple tentacles. Nostrils tubular, the anterior of both sides 

 with posterior lobes. Teeth much smaller than in A. restrains 

 and A. tudori, in a band on the lower sides of each jaw. Gill- 

 rakers of the first arch small, tubercular. 



Dorsal commencing on the tip of the rostral hook, the anterior 

 rays free, simple, and serrated ; the fourteenth to eighteenth rays 

 are longer than those immediately following them. Left pectoral 

 of similar form and size to the right. Right ventral in a line 

 with, and joined to the anal, the anterior rays somewhat similar 

 to those of the dorsal. Middle caudal rays longest, the margin 

 i-ounded. 



Colour. Light sandy-coloured with minute black dots over 

 the head, body, and fins. 



Described from two specimens 195-215 mm. long. 



