FISHES. MCCULLOCH. 99 



latter ; the lower teeth are similar to those of the female, 

 but the upper ones are all erect and triangular, with lateral 

 basal lobes. All these differences suggest that the two 

 specimens belong to different species, but taking into con- 

 sideration the fact that they were obtained at almost the 

 same locality, I prefer to regard them as sexual forms of the 

 one. 



These specimens agree with C. granulosus, Schneider, in 

 having the cusps of the lower teeth serrated, and they are 

 possibly identical with that species. 



Loc. Victorian coast, Lat. 38 50' S., Long. 148 15' E., 

 70-80 fathoms. 



CENTROPHORUS HARRISSONI, sp. nov. 

 (Plate xiv., fig. 1-4.) 



Head depressed, snout rather long and sharply rounded. 

 Nostrils a little nearer the end of the snout than the upper 

 lip ; the space separating them somewhat less than their 

 distance from the end of the snout. Anterior nasal flap 

 with a triangular lobe, which may have a secondary lobule ; 

 posterior margin of nostril with a narrow, skinny lobe. 

 Mouth below the posterior portion of the eye, its width a 

 little greater than its distance from the nostrils ; it is slightly 

 arched with a deep groove and short labial folds at each 

 angle ; the oblique lateral groove extends backward to 

 behind the verticle of the spiracle, its length equal to two- 

 thirds or three-fourths the width of the mouth. Eye large, 

 its diameter less than the length of the snout before the 

 nostrils ; orbit produced anteriorly and posteriorly, its 

 length equal to about three-fourths the snout and but little 

 less than its distance from the first gill-opening. 



Spiracle large, sub-triangular, situated a little behind the 

 corner of the orbit and one diameter above it. Gill-openings 

 becoming closer together backwards, the first to fourth sub- 

 eqiial, the last abruptly wider than the others, and extending 

 around the base of the pectoral. 



Upper teeth much smaller than the lower. Those near 

 the symphysis are a little oblique, the others becoming more 

 oblique and somewhat larger towards the sides ; the lateral 

 teeth have the cutting edge almost horizontal. Lower 

 teeth with the cutting edge nearly horizontal, and imper- 

 fectly serrated. Scales small, sessile, and pointed posteriorly, 

 the upper surface with several keels which converge towards 

 the point. 



