264 Dr. W. C. Mcintosh 07i the Annelida 



tips of extreme delicacy ; a few in the centre of tlie foot are 

 stouter, wliile the shorter ventral forms have again a capillary 

 termination. A parasitic Loxosoma occurs on the bristles. 



Eupolynoe occidentalism n. sp. 



A fragment of the anterior end was procured in 110 fathoms 

 between Cape Rosier and Cape Gaspe, so that only an im- 

 perfect description is at present attainable. It is a large form, 

 with comparatively short feet and slender bristles. 



The head is dull purplish, two eyes being placed at the 

 posterior and outer part, and two larger in front on the lateral 

 prominence. Tentacle absent ; antennae slender, subulate, and 

 furnished with clavate papilla. Palpi brownish, with minute 

 though rather elongated papilla. Tentacular cirri tapered, 

 Avith numerous large clavate papilla?. A single dorsal cirrus 

 only "was found loose on the dorsum ; it was filiform, gently 

 tapered from the base to the point at which the more rapid nar- 

 rowing of the tip occurs. The base is covered with a dense 

 series of long papillae, which exceed the diameter of the organ ; 

 they are shorter towards the tip. The long papillae are re- 

 markably slender, uniformly cylindrical, with a slightly bulb- 

 ous tip. The ventral cirrus tapers from base to apex, and is 

 nearly smooth ; a few short papillae, however, are visible in 

 some. The ventral papilla is well marked and nearly 

 cylindrical. 



The dorsal bristles are rather small, not much tapered to- 

 wards the tip, which is somewhat blunt and peculiarly curved 

 (PI. IX, fig. 8, one of the longer forms). The rows of spikes 

 continue nearly to the tip. One of the stouter forms is given 

 in fig. 9. 



The ventral bristles are brownish rather than yellow, and 

 are grouped in three series. The upper are rather slender, 

 have elongated, tapered, spinous tips, which terminate in a 

 slender fork, a modification of the normal structure (PL IX. 

 fig. 10). Some have the fork even more slender and elongated 

 than represented in the figure ; others, again, have a shorter 

 and stouter fork (PI. IX. fig. 11). The next series have 

 shorter tips and somewhat stouter shafts, the tips generally 

 being evidently bifid (Plate IX. fig. 12). The latter repre- 

 sents an average example, some having a more elongated, 

 others a shorter and less distinct fork. The inferior series, 

 again (fig. 13), all have stout shafts and simple tips, the 

 curves of these and their general contour showing progressive 

 changes from series to series. This and the next approach 

 the Lepidastheiiia elegans of Grube from the Mediterranean. 



