1941 



CATALOGUE OF FISHES OF TORTUGAS 



41 



TABLE 3 



Range of variation of dorsal and anal rays in 99 specimens of Syacium papillosum 



(Column 1 gives number of dorsal rays; column 2, distribution of anal rays for number of 

 dorsal rays shown in column 1; column 3, number of specimens having number of anal 

 rays given in column 2. It is evident that in this species, as in S. gunteri, the specimens 

 having the highest number of dorsal rays also tend to have a higher average number of 



anal rays.) 



Syacium gunteri Ginsbur 



Syacium gunteri Ginsburg, Proc. U. S. Nat. Mus., vol. 82, 1933, p. 7 — 12 miles SE. of 



Barataria Light, Louisiana. 

 Syacium longleyi Norman, Ann. and Mag. Nat. Hist., ser. 10, vol. 12, 1933, p. 201 — off 



Breton Island, Louisiana. 



Not uncommon in the 10-fathom channels; taken also in 13 to 14 fathoms east 

 of Bush Key and Bird Key reef, and as many as 31 in a single haul in 40 fathoms. 

 The largest observed was 165 mm. long. 



The female is distinguishable from the male at 68 mm. and upward in length 

 by the postanal extension of the coelomic cavity. The pectoral rays of the ocular 

 side in the male are somewhat prolonged and filamentous, and the width of the 



