1923] POLYCH.ETOUS ANNELIDS 7 



Nereidae 

 Nereis mediator Chamberlin 

 Nereis mediator Chamberlin, 1919a, page 11. 

 One specimen. Labeled as from Lower California. 



Platynereis integer Treadwell 

 Nereis (Platynereis) integer Treadwell, 1920, p. 595, figs. 1-4. 

 One specimen. Labeled as from Lower California. 



Nereis kobiensis Mcintosh 

 Nereis (Platynereis) kobiensis McIntosh, 1885, pp. 210-212, PI. xxxiv, figs. 3, 4, 

 5, 6; PI. xvio, figs. 2, 3, 4. 



One specimen. Labeled as from Lower California. 



Leodicidse 



Leodice segregata Chamberlin 

 Leodice segregata Chamberlin, 1919, p. 237-240, PI. liv, figs. 1-5. 

 Station D.5695; 534 fathoms; bottom temp., F. 38.9°. 

 Station D.5682; 491 fathoms; bottom temp., F. 40.8°. 



Onuphis litabranchia Chamberlin 



Onuphis litabranchia Chamberlin, 1919, pp. 274-279, PI. l, fig. 7; PL li, 

 figs. 1-10; PI. lii, fig. 1. 



Chamberlin described the ceratophores as smooth. In the single 

 incomplete specimen of this collection these are ringed. Each of the 

 median and the outer paired ceratophores has seven rings, while each of 

 the inner paired ones has twelve or thirteen. The gill structure agrees 

 more closely with Chamberlin's paratype than with his type, for many 

 are branched. The specimen is a female with eggs. 



Station D.5673; 1090 fathoms. 



Onuphis lepta Chamberlin 



< hi aphis lepta Chamberlin, 1919, pp. 290-295, PI. xlv, figs. 1-7; PI. xlvi, figs. 

 3-12. 



A small and evidently immature specimen living in a mud tube at- 

 tached to the outer wall of a Hyalincecia tube was collected at Station 

 D.5691. At Station D.5684 were collected a considerable number of these 

 tubes, most of which were empty but one contained the anterior end of an 

 individual which agrees in all respects with Chamberlin's description. 



Station D.5684; 1760 fathoms. 



