92 DISCOVERY REPORTS 



with two pairs of almost contiguous brown eyes. At the outer ends of the head there is 

 a pair of small biarticulate palps. There are no tentacles, nor tentacular cirri. Behind 

 the head there are two or three achaetous segments and then a foot on each side about 

 half the size of the normal feet. The dorsal cirri are rudimentary, being represented by 

 small projections on the upper side of the foot : the ventral cirri are digitiform and reach 

 to the end of the foot. 



The feet (Fig. 28, b) are triangular in outline with a central aciculum and a bundle of 

 compound bristles (Fig. 28, c) with very long slender blades: the apex of the blades 

 curls over into a hook and there is a second tooth, the point of which is almost in con- 

 tact with the point of the hook. The pharynx is unarmed and crowned with a circle 

 of about 10 large papillae separated by rows of minute papillae. 



Remarks. I have provisionally assigned these postlarval Hesionids to Orseis: they 

 cannot be the O. matliai, Gravier, from Port Charcot, because Gravier's specimens 

 measured only 3^ mm. in length and were at a much later stage of development than 

 the present examples, which are slightly larger. The compound chaetae, biarticulate 

 palps and uniramous feet bring this form nearer to Orseis than to any other genus. 



Genus Leocrates, Kinberg 



Leocrates diplognathus, Monro. 



Monro, 1926, p. 313, text-figs, i and 2. 



St. 283. 14. viii. 27. Off Annobon, Gulf of Guinea. -75 to i mile N 12° E of Pyramid Rock, 

 Annobon. 18-30 m. Gear DLH. One specimen. 



Remarks. A single specimen measuring 24 mm. by 3 mm. without the feet. It has 

 the large wing-like folds behind the prostomium, and the double upper jaw-plates 

 described for the examples from the China Sea, but the notopodium begins with the 

 4th chaetiger instead of the 5th. The L. greeffiatms, Augener (1918, p. 219), may be 

 identical with this species, but the prostomial wings seem little developed and Augener 

 gives no account of the jaws. 



Family SYLIJDAE 



Genus Pionosyllis, Malmgren 



Pionosyllis comosa, Gravier. 



Gravier, 1907, p. 15, pi. ii, figs. 12-13. 



St. 39. 25. iii. 26. East Cumberland Bay, South Georgia. From 8 cables S 81° W of Merton 

 Rock to 1-3 miles N 7° E of Macmahon Rock. 179-235 m. Gear OTL. Bottom: grey mud. One 

 specimen. 



Remarks. A single damaged example corresponding to Gravier's description. 



Pionosyllis maxima, n.sp. 



St. 45. 6. iv. 26. 27 miles S 85° E of Jason Light, South Georgia. 238-270 m. Gear OTL. 

 Bottom : grey mud. Three specimens. 



