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Fishery Bulletin 97(4), 1999 



Figure 2 



Larval Cheilopogon xenopterus. lateral view. (A) 3.5 mm (8710JD, station 3-046); 

 (B) 8.0 mm (8810JD, station 2-049); (C) 8.1 mm (9210JD, station Manta 2). Fin 

 rays shown in dotted lines are based on fins of other specimens of similar size. 



during embryonic stage X (Table 

 3) and all 7-t-8 rays present at 

 hatching. All principal rays sup- 

 ported by hypurals through at 

 least 8.2 mm but by 10.5 mm low- 

 ermost principal ray partially sup- 

 ported by haemal spine associated 

 with preural centrum 1. By 13.4 

 mm lowermost principal ray fully 

 supported and adjacent principal 

 ray partially supported by haemal 

 spine, and by 16.8 mm both rays 

 fully supported by haemal spine. 

 Procurrent caudal-fm rays begin 

 to form shortly after hatching (by 

 3.8 mm) but full complement of 5- 

 6 dorsal and 6-8 ventral rays not 

 attained until near end of larval 

 development (by 16.8 mm). Cau- 

 dal fin initially rounded, becomes 

 assymetrical as lower principal 

 rays elongate, beginning at about 

 5 mm. 



Pectoral-fin buds form in stage- 

 VIII embryos, almost simulta- 

 neously with beginning of noto- 

 chord flexion, and upper rays form 

 during embryonic stage X. Addi- 

 tion of rays is ventrad, with full 

 complement of 13-15 rays (includ- 

 ing uppermost small, spine-like 

 ray) attained by 9.3 mm (Table 3). 

 Lowermost ray quite small and 

 nearly completely covered by 

 scales in juveniles larger than 



I 



