BY W. MACLEAY, F.L.S. 369 



Family VIII.— PKISTIOPHOKIDiE. 



The rostral cartilage is produced into an exceedingly long 

 flat lamina, armed along each edge with a series of teeth like 

 a saw. 



Genus Pristiophorus, Mull. & Henle. 



Body rather depressed and elongate. Pectoral fins with the 

 front margin quite free, distant from the head. Gill-openings 

 lateral, in front of the pectoral fin, of moderate width. Spiracles 

 wide, behind the eye. No nictitating membrane. Nostrils 

 inferior ; a pair of long tentacles at the lower side of the rostral 

 lamina. Teeth small, with a conical cusp on a broad base, 

 arranged in several series. Dorsal fins without spine, the first 

 in front of the ventrals ; no anal fin. Upper caudal lobe broader 

 than the lower. 



Japan and Australia. 



1104. Pristiophorus cirratus, Latham. 



Mull. & Henle, p. 98.— Lath. Trans. Linn. Soc, 1794, pi. 26, 



figs. 5 & 27. 



Gunth., Cat. Pishes VIII., p. 432. 



Teeth of the saw very unequal in length, there being from 

 one to two smaller ones between the larger. Scales extremely 

 minute, with a single keel, their point not projecting. Dorsal 

 and pectoral fins entirely covered with scales. The distance 

 between the tentacle and nostril equals that between the nostril 

 and the third or fourth gill-opening. Forty-two sets of teeth in 

 the upper jaw. 



Tasmania, South Australia, Port Jackson. 



1105. Pristiophorus nudipinnis, Gunth. 

 Gunth., Cat. Fishes VHP, p. 432. 



