disc, growing slightly wider towards its extremity, which terminally is not very deeply notched. 

 This disc (fig. 5^) is not flat but hollowed out in the middle; it extends across over more than 

 two-thirds of the base of the capitulum, .beyond the middle of the ba.sal segment of the scutum. 



Peduncle cylindrical, as a rule slightly longer than half the length of the capitulum, 

 about -/.)'<''* of that length, or as long as the capitulum in specimens sitting crowded together; 

 rather long also in the old specimens, collected at Tual anchorage, Kei Islands, one of which 

 is fio-ured PI. II, fig. i. The peduncle is distinctly ringed at the surface; the chitinous covering is 

 studded with blunt beads of chitin externally and shows, in old specimens, scale-like excrescences 

 with o-rooves between them. Delicate hairs are planted on the blunt beads of the surface; they 

 are, however, more conspicuous in young specimens than in the full-grown. In the very old 

 specimens from the Kei Islands the surface of the peduncle, like that of the capitulum, has a 

 hairy felt-like coating. 



Size. The largest specimen had a capitulum of 7,5 mm., most individuals however, are 

 no lono"er than 4 mm. and a good many of the specimens are still smaller. The capitulum of 

 the one figured, fig. 2«, only measured 2 mm., that of fig. i, 6 mm. 



Mouth. Labrum bullate, with small palpi bearing numerous bristles, some of them 

 very long, at the apex. Teeth about 18, bead-like distally, triangular and close to one another 

 in the middle. 



Mandibles (fig. 6) narrow, with four teeth and the inferior angle formed by a group 

 of very small teeth; teeth 2, 3 and 4 bearing an additional tooth near the extremity. 



Maxillae (fig. 7) with a notch beneath the three upper spines, one of which is much 

 stronger and one much shorter than the third. In the notch which is wide but not ver)- deep 

 four slender spines are planted, and the projecting part beneath the notch bears about seven 

 moderately strong spines and a few hairs. 



Cirri. First pair much shorter than and far removed from the second pair; seven 

 segments in the longer and six in the shorter ramus. The shape of the segments is nearly 

 quadrilateral, with the exception of the first segment which is of an elongated quadrangular form. 

 Nearly the whole surface of the segments is clothed with spines, which grow longer and stronger 

 towards the terminal segments. The second-sixth pair of cirri have both rami of equal length. 

 The segments are rather long and bear as a rule four or five pair of spines on the anterior 

 side and a tuft of small spines on the posterior near the junction of two segments. A few very 

 delicate spines are scattered over the surface of each segment. 



Caudal appendages narrow, thin, more than half as long as the pedicels of the 

 sixth cirrus; a tuft of bristles, two or three of which are much longer than the others, is placed 

 on the summit; no bristles or one isolated bristle on the sides. 



Penis short, thick, terminating in a conical part bearing a tuft of extremely delicate 

 hairs at its extremity. 



General remarks. This species shows a certain resemblance to D. Warzvicki\ the 

 differences, however, being numerous and, so far as I could make out, constant, there can be 

 little doubt but that they represent different species. As in D. Warzvicki the scutum and tergum 

 of young specimens are difterent from the same valves in older specimens : the shape of these 



