I02 



nearly half as long, must be identified with the above-named species. Unfortunately both are 

 in a bad state of preservation and lack all the cirri as well as the elytra ; the antennae also 

 are absent and the vvorms only show the basal part of the tentacle. However the palps and the 

 parapodia with their bristles are rather well preserved. The thin triangular processes of the 

 head — according to Ehlers homologous with the lateral frontal corners — could be recog- 

 nised, but nothing can be said about their real nature. The notopodial fa.scicle is much less 

 developed than the neuropodial one. The majority of the bristles are translucent, flattened out 

 in their distal part and finely serrated along both edges ; they have an elongated, smooth, 

 triangular tip, that is furnished with a triangular ridge. That the tip should be bifid, as sug- 

 o-ested bv Mc Intosh, or provided with a pore, according to Ehlers, could not be confirmed. 

 This species for the first time was dredged by the Challenger at a depth of 1375 fath. 

 Kast off Prince Edward island ; afterwards it was found in the West-Indian Sea by "theBlake" 

 in 291 fath. and by "the Valdivia" off the Somali coast at a depth of 1242 M. 



Genus Polynoë Savigny '). 



Body elongate, consisting of more than 45 segments ; elytra 1 5 pairs or more, inserted 

 upon segments 2, 4, 5,-7.... 23, 26, 29 etc, {Hololepidc/ia Willey-) or restricted to the 

 anterior region of the body [Hcjui/epidia Schm.). Notopodial bristles more slender than neu- 

 ropodial ones. 



I. } Polynoc corniita Fischli. PI. XXI, figs. 11 and 12. 



FiSCHLl, Polychaten von Ternate, p. 99, PI. IV — VII, figs. 3, 4, 23, 34, 50 and 51. 



Stat. 12. 7° 15' Lat. S., 1 15° 15'. 6 Long. E. South oft' Kangeang. Depth 289 M. 18 specimens; 



The worms dredged at the above-named Station, in my opinion, must be identified with 

 Poljndé conmta from Ternate, described by Fischli, though there is some discrepancy between 

 their characters and his description. Unfortunately he could only dispose of a fragment without 

 elytra and dorsal cirri. The Siboga-specimens also are in an indifferent state of preservation 

 and lack nearly all the scales. Each scale (PI. XXI, fig. 11) is densely fringed with long papillae 

 along its posterior and outer border ; its surface over a large area is covered with tubercles, 

 increasing in length externally and passing gradually into conical thorns and cylindrical spines. 

 Their scar of attachment is situated eccentrically. The parapodia (PI. XXI, fig. 12) have the neuro- 

 podium more developed than the notopodium ; the first one is elongated, conical, with a slender 

 cylindrical lobe at its tip and contains a large fascicle of .setae, that have the distal part dilated, 

 and bear large laciniated fringes and a slender tooth below the tip. The notopodium also has 

 a lobe, enclosing the acicula, half as long as the neuropodium ; its fascicle consists of bristles 



i) Syslème des .Annélides, p. 20. 

 2) Loc. cit. p. 252. 



58 



