320 ANNELIDA FROM BERMUDA. : 
The first ten segments are rounded; their length a little more, their 
diameter a little less, than that of ae segment following. After the 
tenth segment the body is much depressed ; very slightly convex above, 
flat below ; along the posterior third the body is somewhat more convex, 
and diminishes gradually in diameter. 
Length, 120™™, 
Greatest width, 6™™. 
Color (in alcohol), dirty white, somewhat iridescent. 
NICIDION Kinberg. 
NICIDION KINBERGI 2. sp. 
(Plate XII, Figs. 81-38.) 
This genus is represented in Mr. Goode’s collection by a single speci- 
men, of which the posterior segments are lost. What remained is in 
good condition, and it seems desirable to describe it, as well as may be, 
because so few species of the genus have been found. 
The head (Fig. 81) is bi-lobed, convex above and at the sides; the 
median antenna reaching back to the third segment; the paired antennze 
alittle shorter than the median ; eyes small, circular, black, situated 
back of the origin of the lateral antenne. 
The buccal Segment is nearly as long as the three following segments 
together; the second segment perfectly well marked, as long as the 
third ; the tentacular cirri were lost, merely a short basal part remaining. 
The dorsal cirri on the anterior segments are stout, irregularly and 
bluntly conical (Figs. 82, 83); further back they become somewhat 
smaller (Fig. 84). The ventral cirri on a few of: the anterior segments 
(Fig. 82) are as long as the dorsal, finger-shaped ; soon they become 
much swollen at base (Fig. 83), and then fall off rapidly in size, being 
hardly perceptible on the posterior segments of our fragment (Fig. 84). 
‘The capillary sete are widened for a part of their length (Fig. 86), 
and then drawn out into a delicate capillary termination. The com- 
pound setz have the form shown in Fig. 85. There are many comb-like 
sete (ig. 87), with their teeth curved and prolonged, especially one of 
the outer teeth. 
In the anterior feet there is a single stout acicula, straight, pointed, 
slightly projecting; further back appears a bi-dentate acicula, in the 
lower part of the ramus (Figs. 84, 85). 
Body strongly convex above, flat or slightly concave below. 
ee 
