20 ZOOLOGISCHE MEDEDEELINGEN — DEEL I. 



Polynoë nigro-'punctata n. sp. 



Siboga-expedition, Stat. 231, Ambon-anchorage, reef. 



A slender Poly noid- worm, measuring 8 mm. in length, characterized 

 by a nice coloration; the head is dotted with black, interrupted by a 

 white median groove and a white ring around the eyes. Also the dorsum 

 of the body is marked with black spots, interrupted by a curved trans- 

 verse line, that divides the dorsal area in a narrow anterior and a broad 

 posterior field and terminates laterally on the elytrophores or the tuber- 

 cula dorsalia. The tentacle consists of a short stout basal part and a 

 slender distal joint somewhat longer than the head; the lateral antennae 

 are short, conical, with a filiform tip, about a fourth of the length of 

 the tentacle. The elytra are all wanting, but presumably there have 

 been 20 pairs of them; the posterior scales are not situated as usually, 

 for the 15th pair (in stead of on segm. XXXII) is placed on segment 

 XXXI, the 16th on segm . XXXIV, the 17th n segm. XXXVI, the 

 18th on segm. XXXVIII, the 19th on segm. XL and the 20th on segm. XLII. 



Polynoë Kampeni n. sp. 



South-east off Borneo, P. N. van Kampen, Dec. 1908. 



A slender worm, measuring about 10 mm. in length, with 44 seg- 

 ments. The head much agrees with that of Lagisca magellanica, var. 

 Grubei Mc Int. *) Both pairs of eyes are situated on the posterior half of 

 the head ; the anterior pair a little behind the middle of the lateral side, 

 the other pair in front of the posterior edge. The lateral antennae are 

 tiny and rather short, about a fourth of the length of the tentacle. 

 There have been 18 pairs of scales, but only the posterior ones are left. 

 They are elliptical, translucent, finely granular, entirely smooth without 

 any appendages; the scar of attachment is somewhat eccentrical, with a 

 nerve-ganglion in its vicinity and numerous dichotomously ramifiying 

 stems emerging from it. 



1) Challenger-Annelida Polychaeta, PI. Ill, fig. 5. 



Leiden, May 1915. 



