344 EEVIEW OF SPECIES OF BELONID-Sl. 



between preopercle and base of caudal. Species 

 of moderate size, with the scales and bones more 

 or less green. 

 Tc. Body very slender, the depth 6^ to 7 in length of head ; caudal 

 keel not very small. 



I. Posterior half of pectorals abruptly black ; eye large, 2^ in 



postorbital part of head. D. 1, 16; A. 1, 17. Lat. 

 1. 250 Stolzmakxi, 10. 



II. Posterior half of pectorals pale, like the base of the fin ; 



eye rather small, 2f in postorbital part of head. 



D. 1, 15; A. 1, 17. Lat. 1. 370 ExiLis, 11. 



Tck. Body moderately slender, the depth 5| in length of head ; 

 caudal keel little developed. 

 X. Eye moderate, 2\ in postorbital part of head; pecto- 

 rals not black posteriorly. D. 1, 15; A. 1. 17. 

 Lat. 1. 300 ; a dark bar on opercle..MARiNUS. 12. 

 XX. Eye small, 3^ in postorbital part of head. D. 13 or 



14 ; A. 15 or IG ; pectoral pale Almeida, 13. 



gg. Dorsal and anal fins long, each of 17 to 25 rays, the last rays of the 

 dorsal fin more or less elevated in the young, be- 

 coming lower in the adult ; caudal keel rather 

 strong, black ; one or more folds of skin across the 

 edge of the preopercle ; caudal fin deeply emar- 

 giuate or unequally forked. Ventrals inserted 

 midway between base of caudal and middle of 

 eye. Species of large size, with the scales and 

 bones green ; no distinct lateral stripe. 



m. Beak short and very strong, its length 1^ to If times 

 length of rest of head ; body comparatively robust, 

 the depth more than one-fifth length of head. 

 n. Dorsal fin of moderate length, its rays 1, 16; anal rays 

 1, 17: insertion of dorsal notably behind that of 

 anal; snout very short, 1^ times length of rest of 



head. Lat. 1. 440 Fodiator, 14. 



nn. Dorsal fin long, its rays 1, 21 to 1, 24 ; anal rays 1, 22 to 

 1,24; insertion of dorsal almost opposite that of 

 aual ; snout longer. If to 1| length of rest of head. 

 Lat. 1. about 350 Raphidoma, 15. 



mm. Beak strong, but more elongate, its length about twice 

 length of rest of head ; dorsal beginning behind 

 front of aual. 

 0. " Greatest depth of body equal to length of pectoral; 

 teeth shorter and weaker than in T. acus. D. 

 21 to 22; A. 19 or 20; a grayish lateral streak" 



(Steindachner) Pacipicus, 17. 



00. Greatest depth of body about two-thirds length of 

 pectoral. D. 1, 23 ; A. 1, 21. Lat. 1. 380 ; no lateral 



stripe Acus, 18. 



bh. Mouth not closing completely, the upper jaw arched at base, somewhat as in T. 



Mans; lobes of dorsal and anal low, the last rays 

 elevated ; depth 20 in totaT length with caudal ; 

 head 3| ; body broad, compressed ; breadth of 

 body f its depth, which is about equal to postor- 

 bital part of head ; preopercle with folds of skiu ; 

 eye lOJ in head, 2-fV iQ postorbital part ; beak 



