/ 



51 



Length alxiut 25 mm.; breadth 12 mm. 



In this species .some of the coarse dorsal bristles pierce the thick dorsal feit with their 

 distal end ; they are not very stout, brown-yellow, densely ,covered with small tubercles or 

 spines, and terminating in an uncoloured, vitreous hook-shaped extremity (PI. XI, fig. 16). The 

 ventral bristles are pale-brownish coloured, faintly S-like bent in their distal part and provided 

 with a villous beard at some distance from the end, like in Aphrod. malayana and A. obtecta 

 (PI. XI, figs. 14 and 15); they are arranged in rows, as usually. The head is heart-shaped, 

 provided with a tentacle, that consists of a thick basal part, measuring abont a third of the 

 length of the head and of a slender distal joint, nearly as long as the head. In its anterior 

 part there occur on each side a pair of semilunar eyes, situated on a prominent, elliptical area. 

 The facial tubercle has the shape of a pine-apple and is nearly of the same length as the 

 head. The palps are glossy, stout, not very long, tapering distally and beset with fine spinous 

 papillae, only visible by high power. 



6. Aphroditcllix florcsiana Horst. PI. XII, figs. 1 — 5. 



Horst, Zoolog. Mededeel. R. Museum Nat. Historie. Leiden, Vol. II, 19 16, p. 67. 



Stat. 51. Molo Strait. Dcpth froin 69 to 91 M. 3 specimens. 



Stat. 153. o°3'.<S Lat. N., 130° 24'. 3 Long. E. North oft'Waigeu Island. Depth 141 M. i specimen. 



At Stat. 5 1 an adult and two young specimens were caught. The last ones measure 

 only 9 and 6 mm. in length, whereas the adult has a length of 27 mm.; its breadth in the 

 middle of the body is 14 mm. 



The specimen of Stat. 153 is 8 mm. long. (without bristles) and the body in its anterior 

 and posterior region is acuminated ; the number of segments is about 30. The dorsum is 

 coated with a thick feit, through which the dorsal bri.stles penetrate ; however they are not 

 prominent, but with their strongly cttrved or knee-like bent distal end lie down on the back 

 in transverse rows. Their distal half is pale coloured, densely covered with minute tubercles, 

 and terminates in a short hook (PI. XII, figs. 2 and 3). The ventral bristles are nearly straight, 

 beset over one side of the short distal region with villous appendages (PI. XII, figs 4« and ó)\ 

 in some of the bristles that villous coating projects beyond the apex, as in Aplirod. interniedia 

 (Challenger Annelida, pi. \T -^, fig. i). However in the young specimens these bristles have 

 a quite different appearance ; their tip lacks the villous beard and is shaped like a pen, pro- 

 vided with three or four indistinct teeth (PI. XII, figs. '-^a and b). They are situated in the 

 neuropodium as usually in three rows, two stout ones, dark brown coloured dorsally, 5 shorter 

 bristles in a median series and 8 ones ventrallv. 



The head (PI. XII, fig. i) is heart-shapedv with a small knob-like tentacle in the middle 

 of the anterior region as in Ap/irod. acuminata from Florida ; on each side of it there occurs 

 a prominent area, on which two minute black spots are situated in a transverse series. The 

 palps are rather long, with an acute extremity; they show a constriction in their basal region. 

 The facial tubercle is oblong conical, beset with papillae. 



