ZOOLOGISCHE MEDEDEELINGEN — DEEL I. 



met with by the Siboga-expedition on the four above-named stations; 

 like in the specimens from the Philippines and from Ceylon also in the 

 Malay-specimens the elytra are much smaller than in the worm from 

 Oepoloe and therefore also the number of their tubercles is much smaller. 

 Michaelsen has rightly stated, that the ventral bristles are not bifid, as 

 mentioned by Grube, but trifid; for there are two small conical teeth 

 at the base of their large, faintly bent tip. They correspond to the 

 largest teeth of the distal transverse row in other Lepidonotus-speciea. 

 If this species is to be ranged in the genus Lepidonotus, henceforward 

 in the diagnosis of that genus the phrase, „elytra, covering the dorsum 

 entirely" ought to be cancelled. 



? Lepidonotus adspersus Grube 1 ). 



Siboga-expedition, Stat. 299, Cyrus-bay, south-coast of Rotti-island. 



On the above-named Station a Polynoid-worm was dredged, that on 

 account of the appearance of its elytra I venture to identify with Lepidon. 

 adspersus, described by Grube from the Philippines. It has a length of 

 about 15 mm. and a breadth of 6 mm. (with bristles); the body is dark- 

 coloured. The head is longer as broad; its anterior eyes are situated on 

 the lateral prominences, whereas the posterior ones lie hidden under a 

 nuchal collar. The lateral antennae are provided with a black ring on 

 their dilated subterminal part, beneath the filiform tip, like also the 

 tentacular and dorsal cirri and the ventral cirrus of the first setigerous 

 paropodium. The elytra are elongated-oval ; nearly their whole surface is 

 covered with small pointed tubercles, among which there is a number of 

 larger ones, some of them, especially in the area of the scar of attach- 

 ment, surrounded by black pigment, whereas there is also sometimes a 

 black patch in front of the latter. Along the posterior and exterior border 

 of the scales there is a row of stiff, cylindrical papillae, all of the same 

 length. The neuropodial setae have a secundary tooth beneath the tip 

 and about ten denticulated rows on their dilated subterminal part, the 

 distal of which bear some large teeth ; the notopodial ones have a 

 fine distal tip and are provided with densely crowded, spirally arranged 

 laciniated fringes. 



Lepidonotus albo-pnstulatus n. sp. 

 Siboga-expedition, Stat. 305, Solor-strait. 



This species is characterised by the conspicuous appearance of its 

 elytra and by the structure of its parapodia. The single specimen measures 



1) Anuulata Semperiana, p. 30, PI. II, fig. 7. 



