526 PROCEEDINGS OF THE ACADEMY OF [July, 



Eunoe iruncata was described from a fragment of the anterior end 

 and proves to have been incorrectly referred. Numerous perfect 

 specimens in this collection show that this is an elongated worm and 

 properly belongs to Kinberg's genus Hermadion, if this be recognized as 

 a distinct genus. 

 Aphrodita negligens sp. nov. PI. XXXIV, figs. 1, 2; PI. XXXV, fig. .31. 



This species presents a very characteristic .shaggy and disordered 

 appearance, owing to the manner in which the loose tufts of coarse 

 dorsal setee, instead of lying recumbent on or in the dorsal felt, as usual 

 in species of this division of the genus, stand erect and arch high above 

 the back. As a result also of this relation the back appears flat beneath 

 these setae and the sides are nearly vertical. The general outline is 

 narrowly ovate, the caudal ^ attenuated. The extreme lateral margins 

 are formed by the neuropodia and their setse below, by the convexities 

 of the lateral dorsal bristles above, while the iridescent bristles fall in 

 spreading vertical tufts in the space between but are too sparse to con- 

 ceal the neuropodial seta\ The dorsal felted area between the bases 

 of the most medial dorsal spines covers about f of the width of the 

 back, but the spines themselves arch over this area and, as the longest 

 almost meet, form a sort of imperfect bower. As shown below, while 

 there are really but two series of these spines the uppermost tufts are 

 inserted alternately at different angles and consequently perforate the 

 felt at different levels, thus giving an appearance of three series. The 

 segments, of which there are 41 bearing setae, are strongly defined ven- 

 trally, where the body is deeply marked by a median neural groove 

 and a ])air of lateral fuiTOws just inside the bases of the parapodia. 

 The anus is small, dorsal, subterminal and posterior to somite 

 XXXVIII. 



Numerous minute sharp-pointed cuticular papillae stud the surface 

 of the body above and spherical papillae even more thickly below, and 

 the neuropodium as well. Those on the latter vary much in size, being 

 nearly twice as large on the ventral as the dorsal surface of the neuro- 

 podium, and especially large ones are clustered about the base of the 

 ventral cirrus. 



The prostomium is slightly broader than long, with the pedicle of 

 attachment narrowed dorsally and is smoothly rounded on all sides. 

 There are two pairs of small pigmented eyes, the two on each side being 

 borne on a conuiion slight prominence on the anterior face of the pros- 

 tomium. On both of the two specimens in hand the median tentacle 

 is missing. The palpi are rather stout for the basal J, then taper rap- 

 idly to the slender terminal half, the total length being 4^ times the 



