AN ABAS. 49 



2. 17 to 20 dorsal spines; suboperculutn denticulate ; scales all ctenoid. 

 D. XVII-XVHI 8-9; A. V1II-X 8-9; Sc. 31- 



2-2*- 

 35 -g^ i. A. multispinis, Peters, p. 53. 



1). XVIII-XIX 10-11 ; A. VII 10 ; Sc. 33- 



91 



34 ^ 5. A. pellegrini, Blgr., p. 54. 



D. XIX-XX 9-10 ; A. IX-XI 9-10 ; Sc. 30- [p. 55. 



9 



91 

 33 ^r 6. .4. nigropannosus, Reichen., 



B. Ventral fin extending to or beyond origin oE anal in adult ; maxillary 

 not extending beyond anterior third of eye ; no teeth on palatine 

 bones. 

 D. XVI-XVII 8-9 ; A. IX-XI 9-11 ; Sc. 26- 



28 o : eye 3 to 3| times in length of head. 7. A. congicus, Blgr., p. 57 

 D. XV-XVII 7-10; A. VII-IX 9-11 ; Sc. 25- 

 30 ^rjr ; eye 4 to i\ times in length of 

 head 8. A. nanus, Gthr.. p. 58. 



II. Caudal peduncle absent or much reduced, shorter than the diametur of 

 the eye. 

 A. Caudal peduncle very short, or barely definable. 

 1. Prseorbital not serrated. 



a. Ventral extending much beyond origin of anal. 

 D. XVII-XVIII 7; A. X-XI 7; maxillary 



extending to below anterior fourth of eye. 9. A. ansorgii, Blgr., p. 59. 

 D. XVI 8-9 ; A. X 9-11 ; maxillary extending 



hardly to below anterior border of eye. . 10. A. fasciolatus, Blgr., p. 60. 



b. Ventral not extending much beyond origin of anal ; maxillary 



extending to below anterior fourth or third of eye. 

 D. XVII-XIX 8-10 ; A. X 10-11 ; depth 



of body 2| to 2\ times in-total length ; 



suboperculum and interoperculnm finely 



serrated 11. A. petherici, Gthr., p. 61. 



I). XVI-XVIII 8-10 ; A. IX (rarely X) 9-11 ; 



depth of body 2 to 2| times iu^-total 



length ; suboperculum and interoperculum 



more or less distinctly serrated .... 12. A. kingsleyce, Gthr., p. 62. 

 D. XIV-XVI 8-10 ; A. IX-XI 8-11 ; depth 



of body 2J to 3 times in total length ; 



interoperculum often entire 13.-4.. muriei, Blgr., p. 64. 



D. XIV-XVI 8-11 ; A. VII-IX 8-11 ; depth 



of body 2 to 2^ times in total length ; 



suboperculum and interoperculum entire 



or feebly serrated 11. A. macvlatus, Thomin., p. 65. 



VOL. IV. E 



