KEPORT ON THE ANNELIDA, 
91 
fig. 3) present tips that are almost simple as in Evarne. It is sometimes difficult to say 
what the exact structure of these tips is, for the bristles are small and extremely trans- 
lucent. A slight projection occurs in some beneath the hook, as in the figure. 
This form approaches Evarne both in the arrangement of the eyes and in the 
structure of the bristles. 
The nerve-cords are comparatively large. 
Eidagisca, n. gen. 
Eulagisca corrientis, n. sp. (PI. XIII. fig. 4; PI. VIIa. figs. 3, 4). 
Habitat. — A single specimen was trawled on hard ground at Station 320 (off the 
east coast of South America south of Buenos Ayres), February 14, 1876; lat. 37° 17' S., 
long. 53° 52' W.; depth, 600 fathoms; bottom temperature 37°'2, surface temperature 
67°'5; green sand. 
A fragmentary example also occurred at Station 150 (between Kerguelen and Heard 
Islands), February 2, 1874 ; lat. 52° 4' S., long 71° 22' E.; depth, 150 fathoms; bottom 
temperature 35°’2, surface temperature 37°’5; coarse gravel. The feet of the specimen, 
however, showed Globigerina ooze. Length about 38 mm.; breadth of the widest part, 
including bristles, 15 mm. This fragmentary example was evidently larger. 
The body is characteristically narrowed posteriorly as commonly seen in Lagisca 
and Evarne. The dorsum is barred and flecked with brown, and there is a dark brown 
patch on the papilla for the scale and its homologue on the other feet. 
The head (PI. XIII. fig. 4) has the pointed anterior processes tipped with brown, 
and the basal portion of the tentacle (which is absent) of the same colour. The eyes 
are remarkably large, the second pair being situated at the margin of the head 
posteriorly, and each has a lenticular whitish opacity in the centre. The anterior pair 
occupy the projecting lateral region, and are only partially visible from the dorsum. A 
similar central whitish opacity is- present. From the large size of the organs those of 
each side are separated by a very narrow interval. The antennae and tentacular cirri 
are absent. A single palpus showed rather elongated acute papdlse on its surface. 
Just in the middle line beneath the insertions of the tentacles and between the bases of 
the palpi is a short conical process, marking the central part of the superior oral arch, 
which is slightly bent upward at this point. A brown band leads from the centre of 
the roof upward to this process, which is also brownish, and at each side is a dark brown 
pigment-mass. This subtentacular cirrus is remarkable. 
The dorsal cirri show a scarcely appreciable enlargement below the filiform tip. 
Their surface has numerous elongated slender cilia with a distinctly bulbous extremity. 
