REPORT ON THE ANNELIDA. 
279 
are only seven branches, at the fortieth three, and the branchiae finally disappear at the 
fiftieth. They thus extend considerably further backward than those of Eunice norvegica, 
in which they commence on the fifth and end at the fortieth foot. There is nothing 
diagnostic in the arrangement of either dorsal or ventral cirrus in the new species. 
Anteriorly each foot has two or three yellowish spines with bluntly pointed and 
slightly curved tips. Superiorly are long simple bristles (PL XXa. fig. 1), with delicately 
tapered extremities. No distinct wing is seen in ordinary views, but the tip is flattened 
and serrated at the edge, apparently instead of the former processes. The brush-like forms 
accompanying them do not show any other peculiarity than an indication of minute 
points on the surface. The lateral fibre of one side, as usual, exceeds the other in length. 
The terminal piece of the jointed bristles beneath (PI. XXa. fig. 2) is comjDaratively 
short, and there are five serrations below the first curve of the wing. The end of the 
Fig. 37.— Maxillae and dental plates of Eunice koKensis, n. sp., partly extruded ; x 20 diameters. 
Fig. 38. — Mandibles of tbe same form ; x 25 diameters. 
shaft is somewhat large, serrated along the prominence of the curve, and with a very well 
defined mark internally. There is little difference, save in length, between the foregoing 
bristles and those on the twentieth foot. 
The posterior hooks (PI. XXa. fig. 3) present a single large powerful fang, with a 
curved terminal process superiorly. 
The pellets in the posterior region of the intestine contained sandy mud, in which 
Diatoms and other microscopic organisms occurred. 
In section the cuticle is comparatively thick, and the nerve- area deep. A dense 
granular opacity exists beneath the junction of the oblique muscles, and a large neural 
canal inferiorly. Strong bands of muscular fibres (from the oblique) pass down by the 
side of the cords to the circular coat, and thus the ventral longitudinal muscles are 
firmly clasped. The suspensory bands from the median dorsal region send some of their 
