FISHES OF TUE GENUS KUIILIA. 375 



Upper opercular spine nearly as strong as lower ; dorsal origin 



in advance of pel vies 2. canilescens. 



Lower opercular spine much the stronger; dorsal origin above 



base of pelvics 3. sauvagii. 



B. Caudal fin more deeply emarginate ; middle rays \ 

 to f as long as longest ; lobes pointed. Dorsal X 

 10-12. Anal III 11-13. 



Maxillary extending beyond middle of eye 4. urvillii. 



Maxillary not or barely reaching middle of eye 5. marginata. 



II. Lateral line of 46 to 56 scales ( + 4 or 5 on base of caudal 

 fin) ; no spots on bodj'. 



A. 21 or 22 gill-rakers on lower part of anterior arch ... 6. boninensis. 



B. 24 to 29 gill-rakers on lower part of anterior arch. 



1. Dorsal X 13-14. Anal III 12-13 7 . caudovittata. 



2. Dorsal X 11. Anal III 11 ; caudal fin plain, usually 



with dark posterior margin. 



a. Middle caudal rays more than \ as long as 



longest ; 4 scales from sheath at base of spinous 



dorsal to nearest part of lateral line. 



Eye a little shorter than postorbital part of head 8. splendens. 



E^'e as long as postorbital jiart of head 9. Jmmilis. 



b. Middle caudal rays less than J as long as longest ; 



6 or 6 scales from sheath at base of spinous 



dorsal to nearest part of lateral line. 

 Anal nearly as long as head, much longer than caudal 



peduncle 10. sandvicensis. 



Anal f length of head, a little longer than caudal peduncle ... 11. mutabunda. 



3. Dorsal X 9-11. Anal III 10-11. Caudal fin with 



five blackish bands, one median and two on each 



lobe 12. tceniura. 



1. KUHLIA RUPESTRIS. 



CentropomViS rupestris Lacep. Hist. Nat. Poiss. iv. pp. 25iJ, 

 273 (1802). 



Kuhlia rupestris (part.) Bouleng. Cat. Fish. i. p. 36 (1895).* 



Kuhlia rupesti-is hedleyi Ogilby, Proc. Linn. Soc. N. S. Wales, 

 xxii. 1897, p. 767. 



Depth of body 2^ to 3 in the length, length of head 2| to 3j. 

 Snout I to Ig diameter of eye, which is 3| to 5^ in length 

 of head ; interorbital width 3 to 3|. Maxillary extending to 

 below middle of eye (young) or beyond. 16 to. 19 gill-rakers on 

 lower part of anterior arch. 40 to 44 scales in lateral line, 4 or 

 Ak from scaly sheath at base of spinous doi'sal to highest part of 

 lateral line, 9 to 1 1 thence to base of pelvic fin. Dorsal X 1 1 ; 

 fourth or fifth spine longest, ^ to more than | length of head ; 

 last as long as sixth, seventh, or eighth, ^ to more than f length 

 of head. Anal III 10 ; third spine usually shorter than tenth 

 dorsal ; base f to |^ length of head, longer than caudal peduncle. 

 Pectoral i to | length of head. Caudal peduncle as long as, or 

 longer than, deep. Bluish silvery ; each scale usually with a 

 dark spot ; each lobe of caudal and soft dorsal with a blackish 



* The synonymy is as given by Boulenger, except for Dides ficscus of Sauvage, 

 which is a distinct species. 



