's RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 9 



nute worm, dredged by the Challenger off Setubal, differs from Parale- 

 pidonotus especially by its large eyes and the long prolongations of its 

 setigerous lobes. 



I have some doubt that the genus is based on specimens, in a state 

 of sexual maturity and belonging to Paralepidonotus. 



Allmaniella arafurensis n. sp. 



Siboga-expedition, Stat. 262, off Kei-islands, depth of 560 M. 



At the above-named Station a Polynoid was found, that with regard 

 to the shape of its head and its large eyes much agrees with Allmaniella 

 setubalensis dredged by the challenger in great depth. It has a length of 

 30 mm. and consists of 36 segments ; on the dorsal side of each segment 

 there occurs a transverse, oblong elliptical spot of brown colour, preceded 

 and succeeded by a linear one. Laterally on each side of the head there 

 is a pair of large eyes, the anterior of which are larger than the poste- 

 rior ones. The tentacle as well as the lateral antennae are incomplete; 

 the scales are also absent, but probably there have been fifteen pairs of 

 them. The cirrophores (the dorsal cirri are wanting) lie nearly in the same 

 line with the elytrophores ; there are no dorsal tubercles. The parapodia 

 have both setigerous lobes prolongated in a long digitiform process, in 

 which the tip of the acicula lies enclosed. The notopodial bristles lie in a 

 fan-shaped fascicle and are faintly curved, broad, with obtuse tips, lon- 

 gitudinal striae and numerous spinous rows in their distal half; the 

 neuropodial setae are more slender, with an elongated subterminal dila- 

 tation, furnished with spinous rows and terminated by a bifid tip. They 

 do not show the long smooth region below the tip, that according to Mc 

 Intosh should be characteristic for Allman. setubalensis; however this 

 character is also met with in the ventral setae of Paralepid. boholensis 

 and ampulliferus. 



* 



Allmaniella ptycliolepis (Grube) '). 



Siboga-expedition, Stat. 43, anchorage of Poeloe Sarassa, Postilion- 

 islands; Stat. 96, south-east side of Pearlbank, Soeloe-archipelago ; Stat. 

 299, South-coast of Rotti-island. 



The Polynoids, dredged on the above-named Stations, must be iden- 

 tified with Poly nob' ptycholepis Gfr., on account of the characteristic fea- 

 ture of the papillae on its elytra; considering the structure of the para- 

 podia and the large eyes, I think it must be ranged in the genus All- 

 maniella. The head and dorsum are marbled with brown, whereas a trans- 



1) Loc. cit. p, 39, PI. II, 



