EIUÎANTIATE TOLYCHAETA OF JAPAN. 



Tip of fully developed ventml 

 setfto of Lucf. pnrlurta. .Sôyl. 

 [After W. C. JIcIutosL.) 



and inferiorly flattened but taper to 

 the simply pointed extremity, the great- 

 er part of the latter region being 

 minutely nodulated. The next inferior 

 group of bristles consists of a tuft of lust- 

 rous brown spines (setae glochidiae), 

 about 22 mm. in length and slanting 

 backward. The recurved fangs of the 

 spines are usually in 5 opposite, or nearly 

 opposite, pairs. 



Ventral setae (sec the accompany- 

 ing woodcut) have lustrous brown shafts, 

 each of which lias a long and curved 

 hook at the distal end, followed after 

 an interval by a series of chitinous 

 processes arranged in a pectinate 

 manner. 



Elytra in 20 pairs, borne on seg- 

 ments 2, 4, 5, 7, 1) and every alter- 

 nate segment down to 25 and 28, 

 then on ev(,'ry tliird segment down to 45, 

 entirely coxering the dorsum. They 

 are smooth, parchment-like and slightly 

 ji'idescent, showing under tlie micro- 

 scope granular rows radiating from 

 fhe attadied portion. No dorsal felt 

 exists. 



Dorsal cirri long and smooth, 

 tapoi'iiig fi'(^m l)ase to tij), and each 

 willi a. distal pear-shaped process 



