ORTHRAGORlSCUS NASUS. 127 



NOTE XXIL 

 ON ORTHRAGORlSCUS NASUS, RANZANI. 



BY 



Dr. Th. W. van LIDTH de JEUDE. 



(Plate 5). 



In volume XII of this periodical I described a large spe- 

 cimen of Orthragoriscus captured on our coast at Ameland 

 in Dec. 1889 , and called attention to the differences in 

 the various descriptions to be found of this species of fishes. 

 In the end of November of last year another specimen 

 was washed ashore at Callantsoog on our coast and was, 

 trough the kindness of Dr. P. P. C. Hoek director of the 

 Zoological Station at Nieuwediep , presented to the Leyden 

 Museum. Though a large one this specimen is not so gi- 

 gantic as our former one. The dimensions are as follows: 

 Distance from tip of snout to extremity of tail. M 1.23 

 Distance from root of dorsal fin to root of anal 



fin , measured at their anterior side . . . . M 0.76 

 Distance from root of dorsal fin to root of anal 



fin , measured at their posterior side. . . . M 0.64 

 Distance from top of dorsal fin to top of anal fin. M 1.62 

 Distance between tip of snout and anterior side 



of the root of dorsal fin M 0.77 



Distance between tip of snout and anterior side 



of the root of anal fin M 0.87 



Distance from tip of upper jaw to anterior side 



of the root of pectoral fin M 0.40 



Distance from tip of snout to anterior side of 



the root of pectoral fin M 0.43 



Distance between tip of upper jaw to centre of 



the eye M 0.19^ 



Distance between tip of snout to centre of the eye. M 0.22^ 



Our specimen is a male and weighed about 90 Kg. 



In two points this Orthragoriscus differs from that cap- 

 tured at Ameland viz. 1°. in having a prominent snout 

 or proboscis, wanting in the other specimen; 2°. in the 

 nature of the band between body and caudal fin. 



Notes from the Ijeyden Museuna, "Vol. XIV. 



