58 



At the above-named Station a sniall Laetiiionice (a young one?) was coUected, that is 

 especially characterized by the appearance of its vcntral bristles; for instead of the 

 beard of long pinnae, inserted on the tip of these bristles, there is a group of short cirri 

 s e p a r a t e d b y a r a t h e r 1 a r g e interval f r o m the s ]5 i n e b e n e a t h t h e m and in 

 this interval there occur three or four smaller spin es. The tip of the neuropo- 

 dium (PI. XIII, fig. 13) bears a small curved appendix; the ventral cirrus, that measures two 

 thirds of the length of the neuropodium, is swollen over the greater part of its length, 

 but its distal extremity is filiform. All the large dorsal bristles are lost, but a smaller one 

 shows three pairs of fangs, the inferior of which is the longest. No dorsal feit occurs. There 

 are 15 pairs of rather large elytra, overlapping each other in the median dorsal line and 

 totally covering the dorsum. The median ventral region is smooth, translucent. The head 

 is rounded, broader than long, with two short globular eye-peduncles ; no eyes were visible. 

 The tentacle is about half as long as the palps; its basal part is rather large, somewhat 

 loncrer than the eye-peduncles, whereas its distal joint is slender, with an elongated clavate 

 tip. The palps are long, extending to the 10* segment. 



The specimen measures 25 mm. in length, whereas the number of its segments amounts 



to 



.13- 



6. Laetmonice batheia Horst. PI. XIII, figs. 14 and 15. 



Horst, Zool. Mededeel. R. Museum Nat. Historie, Leiden, vol. II, 1916, p. 75. 



Stat. 2GI. 6° 24' Lat. S., 124° 39' Long. E. South-east of Binongka Island. Depth 279S M. 2 

 specimens. 



This species is especially characterized by its translucent body and by its long 

 dorsal bristles, some of which are longer than the body and extend a great deal beyond 

 its anal extremity (PI. XIII, fig. 14). They are golden-yellow, with a dark coloured tip and 

 the whole surface of their shaft is beset with scattered, acute tubercles. There are three pairs 

 of fangs, not very large, triangular, the inferior of them being the largest. The ventral bristles 

 (PI. XIII, fig. 15) are provided with a beard of slender pinnae, separated by a large in- 

 terval from the spine beneath them. The ventral cirrus is slender, not extending beyond half 

 the length of the neuropodium. A dorsal feit occurs, that is covered with mud. There are 1 2 

 pairs of transparent elytra, not overlapping each other in the median dorsal line and leaving 

 the middle of the dorsum bare. The ventral side of the body is villose, covered with small 

 papillae. The head is rounded, somewhat broader than long, with two large, globular eye- 

 peduncles, without pigment. The tentacle is wanting. The palps are very long, reaching to the 

 I 2"^ seofment. 



The largest specimen measures about 20 mm.; the number of its segments amount to 25. 



• 7. Laetmonice viridcscens n. sp. PI. XIV, figs. i and 2. 



Stat. 137. 0° 23'. 8 Lat. N., 127° 29' Long. E. Channel between Makjan and Halmaheira. Depth 

 472 M. 3 specimens. 



14 



