ANNELIDS I 



35 



fig. [6. 



The eyes are relatively large, the foremost pair is situated lateralh and is scarcely seen when the ani- 

 mal is regarded from above. The hindmost pair is situated near the base of the head. < If the cephalic 

 appendages only the two paired tentacles are present; the) are 

 short, fusiform and smooth, devoid of papilla?. 



The parapodium (fig. 16) is somewhat longer than high; 

 the neuropodial branch stronger and more prominent than the 

 notopodial part. The bristles are numerous. About the dorsal 

 cirri nothing can be said; they are all lacking. The ventral cirri 

 are short, devoid of papillae and taper gradually towards the 

 tip. Segmental papilla? are distinct. 



The dorsal setse, in length about one third of the ventral, 

 are of the usual sword-shape and beset with numerous transverse 

 rows of spines, reaching nearly to the tip of the bristle (fig. 17 c). 

 The ventral seta are only a little characteristic; they remind one in some degree of the same bristles in 

 H. imbricata, but the end-blade is somewhat longer and more slender; the tip is bifid, the terminal hook 

 is small and the secondary process is somewhat weaker and slightly bent outwards, a case found in 

 several species, viz. H. multisetosa Moore. All the ventral seUe are extraordinarily uniform; from 

 the most ventrally situated to those situated most dorsally the end-blade increases successively 

 in length, but this is also the single difference (fig. 17 <i, />). 



The most characteristic point with this species, and quite peculiar, is the elytron (PI. I, fig. n). 

 The shape is oblong to renal-shaped; the surface is beset with small conical prominences in- 

 creasing in size towards the outer edge of the scale. Along the former is found a number of 

 densely-arranged translucent vesicles, about twenty, of which those in the 

 middle are the largest and taper gradually in size to both sides. Along 

 the hind-edge is found a sparce supply of short papillse. 



Harmothoe aspera (A. Hansen). 



PL II, fig. 7. 



1878. Polynoe aspera, A. Hansen: Nyt Mag. f. Naturv. Bd. 24, p. 1. 



1879. , Theel: Annel. polych. des mers de la Now. Zembla p. 10. 

 1SS2. , A. Hansen: Norsk. Nordhavs Exped. p. 5. 

 1889. Harmothoe aspera, Trautsch: Beitr. zur Kentn. d. Polyn. Spitzbergen 



p. 71. 



191 1. multisetosa, Ditlevsen: Aim. Damn. Exp. p. 412. 



1912. aspera, Augener: Polych. v. Frantz Josephs-Laud I. p. 207. 

 Locality : 

 The Ingolf-Exped. St. 32. 00=35' N. L. 56°38' W. L. 318. Davis Strait. 



< Inly one specimen is present. It agrees well with the form mentioned in my papei from the 

 Danmark-Expedition under the name of H. multisetosa, Moore. Some of the scales are more lengthened 

 and narrow ei in shape, as shown in my figure PI. II, fig. 7. 



5' 



