172 PROCEEDINGS OF THE NATIONAL MUSEUM vol.86 



Type.—U.S.l^M. no. 20412. Collected by the U. S. S. Albatross 

 at station 2265, October 18, 1884, at latitude 37°07'40" N., longitude 

 74°35'40" W., in 70 fathoms. 



Remarks. — In the character of the gills and setae this species agrees 

 closely with E. armadillo Sars as described by Mcintosh (1900, pp. 

 238-240, pi. 35, figs. 2, 8-14), and possibly it may be that species. 

 Mcintosh described the median tentacle as biarticulate, by which I 

 assume he meant like that figured for E. horealis^ but in the present 

 specimens the terminal slender portion is not present. Also, the sub- 

 terminal fine tooth on the seta is larger than is shown in Mcintosh's 

 figure. 



EUPHROSYNE LONGISETIS. new Bpeciea 

 FiGUBE 46, g-i 



Description. — Caruncle and median tentacle much as in E. 

 horealis, except that in the tentacle the basal portion is much shorter 

 and the terminal narrow part relatively much longer than borealis. 

 The setae are of more uniform width than in other species and ex- 

 tend to a greater distance from the body surface. It differs also from 

 E. borealis in that the middorsal naked strip is much wider, being 

 about as wide as one-third of the body width. In this respect it 

 resembles E. hranchiata. The gills are cirruslike processes of uni- 

 form diameter and generally unbranched (fig. 46, g)^ but in larger 

 individuals a few may have two or three branches. On the para- 

 podial ridge of one half somite there were six of these gills. Most 

 of the setae are as shown in figure 46, A, having a conical subterminal 

 tooth and the end of the seta blunt. In the dorsal part of the row 

 the setae are as shown in figure 46, ?', differmg only slightly from 

 those of E. boj^ealis. 



There is some difference in length between the ventral and the 

 dorsal setae, this being more marked in large than in small indi- 

 viduals. 



Type. — U.S.N.M. no. 338; labeled as collected in Greenland by 

 Dr. Charles Liitkens. It is 15 mm long and 5 mm wide. 



Remarks. — This species is the commonest of the genus in tlie 

 National Museum collections. It is recorded as taken in Massachu- 

 setts Bay; off Head Harbor (probably U. S. Fish Commission station 

 X, Aug. 2, 1872, Bay of Fundy, 2i/^ miles about southeast of Head 

 Harbor Light, Campobello Island, 90 fathoms); Banquereau; and 

 east end of Cobourg Island, Baffin Bay, latitude 75°40'' N., longitude 

 78°50' W. 



