terior series of sword-like setae. Those of the ventral group (PI. XVIII, fig. 4) are more slen- 

 der, with an elongated subterminal dilatation, furnished with spinous rows and terminated by 

 a bifid tip ; tliey do not show the long smooth reg'ion below the tip, that according to Mc 

 Intosh should be characteristic for Allinan. sctubalensis. However this character is also met 

 with in the ventral setae of Paralepido7i. bolwle^isis and P. ampzillifcrits. 



2. A/iinaniel/a ptychokpis (Grube). PI. XVIII, figs. 6 — 9. 



Grube, Anneliden-fauna der Philippinen, p. 39, PI. II, fig. 6. 



Stat. 43. Anchorage oft' Puki Sarassa, Postillon Islands. Depth up to 36 M. i female specimen. 

 Stat. 96. South-east side of Pearlbank, Sulu Arcbipelago. Depth 15 M. 2 specimens. 

 Stat. 299. io°52'.4 Lat. S., i23°i'.i Long. E., South coast of Rotti Island. Depth 34 M. 2 

 specimens. 



At Station 43 a worm, broken in three fragments, and at Stations 299 and 96 two 

 specimens were caught, that certainly must be identified with Polynoë ptycholepis Gr., on account 

 of the characteristic feature 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 Allmaniella. 



The length of the specimen of Stat. 43 is about 35 mm., the number of its segments 

 amounts to hfty. 



The head and dorsum are elegantly marbled with brown, whereas a transverse white 

 band occurs on the middle of each segment preceded and succeeded by a white dotted line. 

 The head (Pi. XVTII, fig. 6), more broad as long, shows on each side two large eyes, situated 

 laterally; its posterior margin lies hidden under a large semilunar collar. From the middle of its 

 dorsum the tentacle arises with a thick basal part, that bears a slender filiform distal joint, nearly 

 as long as the breadth of the head. Next to the tentacle from the median frontal border^) the 

 two lateral antennae arise, that are not quite so long as the unpaired one ; they also consist 

 of a thick basal joint and a slender filiform distal part, faintly dilated below the filiform tip. 

 Both tentacular cirri are nearly of the same length ; they also have a filiform tip and a 

 distal dilatation. The palps are rather large, smooth, dilated in their basal part with a slender 

 distal end, twice as long as the lateral antennae. 



There are 15 to 17 pairs of elytra, not overlapping each other in the median dorsal 

 line and leaving the posterior part of the body uncovered. In one specimen from Stat. 299 

 there is only one cirrus-bearing segment between the 15''^ and 16* elytron in stead of two. 

 Each elytron is translucent, rounded quadrangular, with its scar of attachment somewhat eccen- 

 trical and the lateral area of its surface covered with small, three-spined papillae. Tubercula 

 dorsalia are present. The parapodia (PI. XVIII, fig. 7) have the ventral lobe much more deve- 

 loped than the dorsal one, the anterior lip of the first-named being elongated, pointed, enclo- 

 -sing the acicula : "p haretra ventralis longior, in apicem producta' according to 

 Grube ; its bristles (PI. XVIII, fig. 9) are slender, with the distal part lanceolate, faintly ser- 

 rated, the superior ones indistinctly bifid, the inferior ones with a distinct spur beneath the tip. 



l) When Grube ranges this worm among the species, whose lateral antennae arise from under the frontal margin, I think 

 this must be a mislake. 



35 



