VNNELIDS. I 



33 



Kg. ■ 4- 



of the basal joint of the unpaired tentacle; their terminal filament is inconspicuous. The palps arc of 

 usual length and shape, with a relatively short terminal filament. The tentacular cirri are rather short. 



While the palps are smooth, the tentacles and tentacular cirri are beset 

 with sparcely spread clavate papillae of the usual form. 



The foot (fig. 141 is about as high as long; the notopodial branch some- 

 what smaller than the neuropodial. The acicles are strong; the dorsal 

 cirrus is medium length and slender, beset with sparcely spread papillae 

 like the tentacles and the tentacular cirri. The ventral cirrus is rather 

 short and of the usual shape. Segmental papillae are distinct; in the 

 hindmost half of the body they are longer than in the front part. 



The dorsal bristles (fig. 15 a) are of the usual sword-shape in this 

 genus. The transverse rows of spines are rather prominent, the spines 

 themselves are rather stout but acute. The distal part of the bristle 

 is devoid of spines of a length about corresponding with the case i H. imbricata. 



The ventral setae are rather different according to their position; the most ventral of them has 

 a rather short end-leaf, the spines of which are very delicate, almost hairlike; the most distal of these 

 spines differ from the others, being a stout and clumsy thorn diverging more from the longi- 

 tudinal axis of the bristle than the others (fig. 15 /', c). The tip of the bristle calls to mind that in 

 Harmothoe imbricata; the tooth under the apex is however relatively weaker. The most dorsally 

 situated of the neuropodial setae have a considerable long endblade provided with a strong and 

 abundant supply of spines; the tip of these bristles is straighter than that of the 

 other ventral setae, the secondary tooth is stronger (fig. 15 d). 



The elytra which are relatively large, and seem to 

 cover the dorsum in its whole breadth, are present to the num- 

 ber of 15. They are of the usual form, the foremost more or 

 less circular; more caudally they grow successively more oblong 

 to renal-shaped (PI. I, fig. 14). The surface of the elytron is densely 

 beset with small chitiuous prominences, smallest at the cephalic 

 end of the scale and growing larger along the latero-caudal edge. 

 The smallest of these prominences have the well-known coni- 

 cal shape; the larger tend to divide in the tip and show 

 forms with 2 — 3 and 4 branches. They call to mind in this 

 stage the bodies we know in Gattyana cirrosa. The bodies in 

 the species in mention, however, are dividing further, and form 

 along the edge of the elytron the peculiar shapes which 1 

 have figured PI. I, fig. 12 — resembling old stubs of trees. 

 Along the edge are found, besides these bodies, long thread- 

 shaped papillae sparcely spread. (PI. I, fig. 12). 



As all the specimens present originate from the same locality nothing can be said about the 

 geographical range of this species. That it is a pronounced deep-sea form, is beyond doubt. 



The Ingolf-Expedition. IV, |. 5 





fig. [5. 



