18 ACANTHOPTEETGII. 



tt D. XVII-XVIII 11-13. A. VI-VII 8-9. Dark cross-bars and a dark band 

 from ojjerculum to base of caudal. 

 Depth of body In to 2 in tlie length, length of head SJj (young) to 3|- (adult). 



Last dorsal spine i, pectoral ^r the length of head 4. fenestratum. 



Depth of body 2;^ in the length, length of head of (adult). Last dorsal 



spine -i, pectoral f the length of head 5. se.rfasciaiuni. 



**■ Caudal peduncle from | to as long as deep. 



t 8 to 10 gill-rakers on the lower part of anterior arch ; a broad dark band from 

 pectoral to base of caudal. 



D. XVII 13. A. VI 9. Last dorsal spine ^ the length of head 6. bifasciatuin. 



D. XVI-XVIII 12-14. A. VI-VII 9-10. Last dorsal spine ? the length 



of head 7. guttulatum. 



tt 7 or 8 gill-rakers on the lower part of anterior arch. 

 f Fold of the lower lip continuous, or at least with a 

 continuous free edge. D. XVIII 11-13. A. (V) 

 \1 9-11. Dark cross-bars and a dark band ending 

 in a spot on the base of caudal more or less distinct . 8. microplithahniis. 



XX Fold of the loAver lip not continuous, rai'cly subcontinuous in the youiii;-. 



Diameter of eye 3 to 5 in the length of head, interorbital width 2:-; to 3 (in 

 specimens of 85 to 2G0 mm.). D. XVII-XVIII 11. A V-VI 8-9, 

 An interrupted dark longitudinal band or a series of spots above the 

 lateral line, another from middle of side to caudal ; lower parts of head 

 and body sometimes blackish 9. melanurum. 



Diameter of eye 4 to 5i in the length of head, interorbital width 3 (in 

 specimens of 80 to 175 mm.). D. XV-XVI 10-11. A. V-VI 8-9. 

 Usually 5 or 6 dark cross-bars ou the posterior part of the body; lower 

 parts of head and body sometimes blackish 10. lahridens. 



Diameter of eye 4 to 4| in the length of head, interorbital width 2^ to 2? 

 (in specimens of 130 to 240 mm.). D. XVI-XVIII 12-13. A. VI- 

 VII 8-9. Dark cross-bars and a dark band from operculum to 

 caudal 11. gadovU. 



Diameter of eye 4 to 41? in tlie length of head, interorbital width 2tV to 2"!? 

 (in specimens of 9(5 to 177 mm.). D. (XVI-XVII) XVIII 10-12 (13). 

 A. (IV) V-VI 8-10 (11). A broad blackish angular band from oper- 

 culum to the middle of side and thence upwards to the spinous dorsal ; 

 a dark blotch on the caudal peduncle 12. aiiyulifcnim. 



Diameter of eye 4:^ to 4^ in the length of head, interorbital width 2'z to 3 

 (in specimens of 133 to 155 mm.). D. XVIII 9-11. A. V-VI 8-10. 

 A dark angular band as in C. anyulifermn; a narrow longitudinal band 

 from the angle of the broader one to the base of caudal, where it forms 

 a vertically expanded spot 13. intenuediuM. 



D. XVI 12. A. V 8. 10 or 11 obscure dark cross-bars ; a scries of 4 to 6 

 blackish spots, usually ocellatcd and vertically expanded, below the 

 dorsal fin on the posterior part of the body ; an ocellus on the upper part 

 of the base of caudal Ik pavonaceum. 



