FISHERY BULLETIN VOL. 77, NO, 4 



creased with specimen size between 4.8 and 12.4 

 mm. The 12.4 mm juvenile had ~60 fine serrations 

 on the anterior margin of each of its pelvic spines. 

 Between 12.4 and 22.4 mm these serrations were 

 lost. 



Three distinct pelvic rays appeared on the 4.2 

 mm larva in the anterior portion of the previously 

 undifferentiated finfold (Figure IB). Between 4.6 

 and 5.5 mm the pelvic fin attained the adult com- 

 plement of 1 spine and 5 soft rays (Table 3). 



The pelvic spine was long. It extended to or 

 beyond the anus in all but the smallest and largest 

 specimens, 4.0 and 22.4 mm, respectively (Figures 

 1, 2). The pelvic soft ray closest to the pelvic spine 

 was always the longest pelvic fin ray. Apparently 

 this longest ray may be easily broken off during 

 collection and handling. Approximately half of all 

 specimens had this ray broken off. The unbroken, 

 anteriormost pelvic ray in specimens 4.8-10.6 mm 

 extended at least to the center of the anal fin base 



(Figure IC). Specimens of 6.4, 7.3, and 9.5 mm had 

 an unbroken ray that extended posteriorly beyond 

 the center of the emal fin base (Figures ID, 2A). 



Caudal Fin 



Caudal fin formation began at -4.2 mm (Figure 

 IB, Table 3). The most ventral principal rays and 

 those near the tip of the urostyle were the last to 

 develop. Between 4.2 and 4.7 mm the adult com- 

 plement of 17 (9 dorsal and 8 ventral) principal 

 caudal rays developed. Notochord flexure occurred 

 between 4.7 and 4.9 mm (Table 3). 



Anal Fin 



At 4.7 mm, 8 anal rays were present as 2 spines 

 and 6 soft rays in the anteriormost part of the fin 

 (Table 3). The posteriormost rays formed last. By 

 4.9 mm the adult complement of 12 rays was pres- 



970 



