FISHERY BULLETIN: VOL. 12. NO. I 



distinguishing B. thompsoiu from B. ptDitheri- 

 nus and B. maiicua (in addition to counts of the 

 lateral line scale rows, lower gill rakers, and 

 caudal rays) are as follows. Cycloid scales are 

 present on the ocular side of B. thonipsoiii 

 (except at the bases of the dorsal and anal fin, 

 and occasionally on the cheeks and in the 

 vicinity of the lateral line) as opposed to 



ctenoid scales on the ocular side for B. paiither- 

 imis and B. ihuiicks. Adult males of the latter 

 two species have elongated pectoral fin rays on 

 the ocular side, while male specimens of B. 

 thonipsoni do not. Bothus niaiicHs possess 

 more dorsal and anal fin rays than do B. thomp- 

 sdiii and B. paiitJwriinis (97-102 vs. 84-96 and 

 77-82 vs. 64-74, respectively; Hawaiian Island 



UJ 

 UJ 



o 



ffi 



Z 



60 



50 



40 



30 



20 



10 





 60 



50 



40 



30 



20 



10 





 40 



30 



20 



10 





 40 



30 



20 

 10 



40 50 60 70 80 90 100 110 120 40 50 60 70 80 90 100 110 120 



STANDARD LENGTH (mm) 



Figure 7. — Numbers of teeth in the outer and middle tooth rt)ws in Butinis ilioinp.soni 



244 



