320 Mr. W. C. M'lntosh on new Species of 



whereas in A. gelatinosa they lie in the processes of a V. The 

 tentacle is absent ; but its basal segment is very large in com- 

 parison with the antennaj and tentacular cirri. In A . gelatinosa 

 they do not differ much. 



The scales appear to be fifteen on each side, and they are 

 nearly as soft as those of A. gelatmosa, which they further 

 resemble (though smaller) in shape and smoothness. With 

 regard to the latter, however, a high power shows that there 

 is a limited area, near the outer and anterior border, covered 

 with distinct papillae. The dorsal cirrus has a very slight 

 enlar_u;ement below the tapering tip (as in A . gelatinosa) ; but, 

 in addition, it has a few minute clavate papillae. The latter 

 also occur on the ventral cirri. 



The feet are as distinctly marked as in Alentta; but there 

 is a much greater disproportion between the dorsal and ventral 

 bristles, both of which are pale. The dorsal fascicle consists 

 of a short series of somewhat translucent bristles with distinct 

 spinous rows (almost as well marked as, in Evai-ne) , a.nd gently 

 tapering to a smooth portion at the tip. The long ventral 

 bristles, again, consist of two groups, more evidently separated 

 than in Alentia or Eiipolynoe anticostie^isis. The superior 

 tuft arises behind the spine, and is composed dorsally of slender 

 bristles with very elongated and delicately tapered spinous 

 regions, ending in minutel}^ bifid tips like those in Eupolynoe 

 anticostiensis'^ . A gradual change ensues toward the lower 

 bristles (of this tuft), which have a stouter shaft, a shorter 

 spinous region, and a strong hook with a secondary process at 

 the tip. The bristles of the next series have still -sti-onger 

 shafts, shorter spinous regions; and the hook at the tip increases 

 in size, while the secondary process diminishes. Inferiorly, 

 again, there is a tendency to repeat the elongated spinous 

 region and slender forked tip of the upper series. 



There are nine papillas on the dorsal border of the extruded 

 proboscis, and the same number on the ventral surface, A 

 filiform cirrus occurs under each inferior maxilla. 

 Hah. Royal Sound, Kerguelen's Island {Eaton). 



Family Nereidse. 

 Genus Neeeis, L. 



Nereis Eatoni, n. sp. 



This species somewhat resembles Nereis Dumeriln, Aud, 

 & Ed. The head has four large eyes, the anterior pair being 

 somewhat ovoid and by far the larger. When turned back- 



* Anu. & Mag", Nat, Hist, sen 4, vol. xiii. p. 265, pi. x. f. 3. 



