POLYCHiETA. — BENHAM. 227 



Family LUMBRICONEREID.E. 

 Genus Lumbriconereis, Blainvillc. 



LUMBBICONEREIS SPHAEROCEPHALA, SchifUirdd. 



Notocirrus sphaerocephala, Schniarda, Xeue ^^'irbellose 

 Thiere, 1., 2, 1801, p. 11(5. 



Lumbriconereis sphaerocephala, Ehlers. Abhaudl. Gesell. 

 Wiss. Gottingen, Neuseel. Aniial.. 1904, p. 33. 



A single im]ierfect specimen of small size and dark coppery 

 brown in colour, with a high iridescence, appears to belong 

 to this species. The prostomiuni is, however, rather longer 

 than broad, and, therefore, less nearly spherical than in 

 Ehler's description ; this may be a matter of preservation. 

 I have ])reparations of this species, which is common on 

 New Zealand coasts, and it agrees well with them. 



Loc. — East of Babel Island, Bass Strait, about 70 fathoms. 

 Distribulion. — New Zealand ; Chatham Islands. 



Lumbriconereis gulielmi.i sp. nov. 



(Plate xlii., figs. 81-88 ; Plate xliii., tigs. 8<)-<!4.) 



Two imperfect individuals of laige size, one consisting of 

 the head and 58 cha?tigerous segments, measures 70 mm. in 

 length, with a diameter of 7 mm. It is narrower anteriorly 

 where it is onl}' 3 mm. across the peristomium The other 

 specimen consists of 133 segments and the head, and has a 

 length of !)9 mm. There is little evidence of a posterior 

 taperirg, for at its truncated end it still measures 6 mm. in 

 width. 



The worm is nearly cylindrical, its height being 6-7 mm. 

 The segments are short as usual, being about l-6tli to l-7tli 

 of the diameter of the body. 



The colour is coppery brown, with a bright green iridescence 

 and the ch»ta? are glistenina; brown. 



The prostomiuni (PI. xlii., figs. 81, 82) is a rounded cone 

 as broad as its length, with no conspicuous eyes, but in 

 their place a curved transverse row of 6-8 small black spots 

 close together on each side of the base, and extending 

 laterally so as to be visible from the side. In the second 

 individual, which is in a better state of preservation, these 

 pigment spots are less distinct ; they form a row right across 

 the base of the prostomium, and are not confined to the sides. 



1. 1 have taken the liberty of naming this fine speeies after the vcter.m 

 zoologist. Professor William ('. M'Intosh. 



