146 DISCOVERY REPORTS 



their tips which are pale yellow. The hooded bidentate subacicular bristle which begins 

 about the 30th chaetiger is similarly coloured. From about the 7th to the 60th chaetigers 

 the ventral cirri are transformed into large ovate glandular organs. 

 The dental formula is approximately: 6—6: 10 + 5— 12. 



Eunice pennata (O. F. Miiller). 



Fauvel, 1923, p. 400, fig. 156 h-o. 

 Monro, 1930, p. 118, fig. 42 a, b. 

 Eunice antarctica, Baird, 1869, p. 348. 

 Eunice narconi, Baird, 1869, p. 350. 



Occurrence. St. 160 (i); 474 (i); WS 177 (i); WS 804 (i); WS 871 (8). 



Specific characters. Head very slightly indented in front. Tentacles irregularly 

 annulated. Gills beginning on the third to fifth feet and confined for about the first 

 50 chaetigers. Maximum number of filaments about 15. The acicula are yellow and the 

 hooded, bidentate, subacicular chaeta begins between the 30th and 35th chaetigers. The 

 dental formula is 8 or 9 —9 : 9 or 10 + 7 or 8 — 12. 



Eunice australis, Quatrefages. 



Fauvel, 1917, p. 228, fig. xxi a-d, with synonymy. 



Occurrence. St. 929, New Zealand (2); 935, New Zealand (5). 



Specific characters. Tentacles annulated. Gills beginning at the third to seventh 

 feet and confined to the anterior third of the body. Subacicular bristles tridentate. 

 Dental formula approximately 6—7:6 + 8 — 12. 



Subfamily ONUPHIDINAE 



A pair of ovate frontal tentacles. Five occipital tentacles all with ringed tenta- 

 culophores. 



1 . Gills with filaments arranged in a spiral ... ... ... ... ... ... Diopatra 



Gills simple or pectinate... ... ... ... ... ... ... ... ... ... 2 



2. With no tentacular cirri .. . ... ... ... ... ... ... ... Hyalinoecia 



Tentacular cirri present ... ... ... ... ... ... ... ... ... ... 3 



3. First three feet greatly enlarged and carrying long bristles with hooked ends 



... Rhamphobrachium 

 First three feet only slightly enlarged and carrying small simple or pseudo-compound 

 crochets ... ... ... ... ... ... ... ... ... ... ... Otiuphis 



Genus Diopatra, Audouin and Milne-Edwards 



A pair of cushion-like palps. In addition to the paired frontal tentacles and the five 

 occipital tentacles there is a pair of small tentacular cirri borne on the first (apodous) 

 segment. The gills have the filaments arranged spirally around a main axis. Pseudo- 

 compound bristles in the first few feet, followed by capillary, acicular and comb- 

 bristles. Upper jaw with mandibles, three pairs of toothed plates and an unpaired 

 plate. 



Occipital tentacles short. Lower jaw plates heavy and large D. punctifera 



Occipital tentacles long. Lower jaw-plates thin, delicate D. neapolitana 



