TWO NEW SPECIES OF THE MAEDAN 



Ill 



long and slender, attenuating very gradually and uniformly towards 

 the finely pointed end ; but the one is excessively fine and smooth 

 throughout (fig. (5, a), while the other, besides being much longer and 

 stouter at base, is provided with bipinnately arranged spine-like hairs in 

 the slender terminal portion, which on that account presents a plume- 

 like appearance when seen under a high power (fig. 6, b, and fig. 7). — 

 The ventral group consists of uncini arranged in a row. The uncinus 

 terminates sometimes in three, aud sometimes in four, hooks. 



The tube of thy worm was found in a greatly damaged condition, 

 just enough to show that it is thin and membranous. Fine particles 

 of bluish mud covered the surface. 



The above described worm clearly belongs to the family Maldanidre 

 as established by Savigny (System des Annelides, 1820). Further, it is 

 referable to the genus Maldane Grube, notwithstanding that it does not 

 quite agree with the definition of that genus as given by De Saint- 

 Joseph (Les Annelides polychaetes des cortes de Dinard, 1894). The 

 descrepancies consist in the presence of acicular seta; in the second 

 segment, in which respect it seems to approach Clymene, and in the 

 fact that the corners of the petaloid plume are elongated into cirri. 



Clymene harai. N. sp. 



PI. Ill, figs. 9—12. 



A single specimen lies before me. It is 92 m . in. long and 3.5 m m 

 broad in the broadest region of the body. 



The color, as seen on the alcoholic specimen, is a light yellowish 

 ochre with bluish iridescence all over the body. 



The cylindrical body (fig. 9) consists of 23 segments, of which 19 

 are setigerous. It may be distinguished into the four following regions : 

 the fused cephalo-buccal or the first segment, the thorax, the abdomen 

 and the tail. 



The cephalo-buccal segment is slightly obliquely truncated. The 

 truncated end or the cephalic plate shows a median fold which somewhat 

 broadens antero-ventrally and which is bounded on either side by a 



