FISHERY BULLETIN: VOL. 73, NO. 1 



05 mm 

 I 1 



Figure 3.— Dorsal view: A, furcilia I; B, furcilia II; C, furcilia III; D, furcilia IV; E, furcilia V; F, furcilia VI. 



of segment 3; spine with 5 pairs of setae spaced 

 along inner margin and small setae between; 

 peduncle segments 1 and 2 each with 2 plumose 

 setae on inner margin and small dorsal setae; 

 segment 3 with 3 setae on inner margin, a 4th 

 slightly ventral seta on distal margin, and 4 setae 



on dorsal lobe. Flagella usually of equal length; 

 outer ramus with 1 aesthetasc at about midlength 

 of inner margin; terminal setation of flagella 

 apparently unchanged but too frequently broken 

 to determine. In subsequent furciliar stages num- 

 bers of setae on dorsal surface increase but 



152 



