96 



present. The parapodia (PI. XX, fig. lo) have the neuropodium .strongly developed, triangular; 

 'its fascicle consists of a dorsal part, with slender setae, hardly dilated and finely serrated, while 

 it.s ventral part contains stouter bristles (PI. XX, fig. ii), with simple curved tip and obsolete 

 fringes along the dilated distal part. The notopodium has a short, pointed anterior lip, enclo- 

 sing the acicula ; its fascicle consists of slightly curved setae, which are smooth or faintly ser- 

 rated. The dorsal cirrus is rather long, tapering, extending beyond the distal extremity of 

 fascicle; the ventral one is much shorter, reaching hardly beyond half the length of the 

 neuropodium. 



5. Lagisca malayana Horst. PI. XX, figs. 12 and 13. 



Horst, Zool. Mededeel. R. Museum Nat. Historie, Leiden, vol. I, 1915, p. 16. 



Stat. 273. Anchorage oft" Pulu Jedan (Aru Islands). Depth 1 3 M. 2 specimens. 



Two female specimens, that lost their elytra and almost all their cirri ; the largest one 

 has about 40 segments and measures 17 mm. in length. It is characterised by a peculiar colo- . 

 ration on its dorsum, the blackish median area being divided by some longitudinal and trans- 

 versal pale lines in a number of regular compartments, lying in three transverse rows (PI. 

 XX, fig. 13). Head more broad than long, divided by a median groove in two halves, with 

 two pairs of large eyes ; the posterior pair is situated in front of the posterior border, whereas 

 the eyes of the anterior pair ly on the lateral prominences. The tentacle is absent. The lateral 

 antennae are slender, densely beset with long cylindrical papillae and measure about two 

 thirds of the length of the palpi. The palpi are stout in their basal part, with filiform tip and 

 are also beset with short papillae. In the parapodia (PI. XX, fig. 12) both lobes are nearly equal 

 in length ; their ventral lobe is rounded triangular, with a short curved appendix. The ventral setae 

 are of the usual shape and have a bihd tip and a dilated distal part, with laciniate fringes. 

 The dorsal lobe is cylindrical with digitiform tip, enclosing the acicula; its bristles are slightly 

 curved, with a smooth distal extremity and conspicuous dentate rows below it. Dorsal tubercles 

 large. The ventral cirrus, tapering distally, is provided with some long cylindrical papillae, and 

 does not reach much beyond half the length of the ventral lobe ; the dorsal cirrus, densely 

 beset with cylindrical papillae, and provided with a filitbrm tip, does not extend beyond the 

 distal extremity of the notopodial fascicle. 



6. ? Lagisca imiica Potts. 



POTTS, loc. cit., p. 33S, PI. XIX, fig. 13; PI. XXI, figs. 46 and 47. 



Stat. 313. Saleh Baj' (Sumbawa). Depth up to 36 M. i incomplete specimen. 



At this .Station the anterior fragment of a worm was captured, 5 mm. long and consisting 

 of 14 segments, that wants the elytra as well as the dorsal cirri; therefore it could not be identified 

 with certainty. The head is roundish rectangular, more broad than long, with rounded frontal 

 lobes, dotted with black ; no frontal peaks could be discerned and the lateral antennae have 

 the appearance of [jrolongations of the head, as described and figured by Potts for Lagisca 



