26 



In | nd the 6 1 ' one diere occur also other bristles, ha ving tfieir outer border 



i witli regular serrations PI. VIII, fig 17. whereas the inner one is smooth; another 

 ippears to 1"- quite smooth (PI. VIII, fig. 



Mint. iini Kinberg), established by M< Intosh for another deep 

 ;roup, though in many regards agreeing with Bathychloeia, is sufficiently 

 shed by the uniformity <>t" its branchiae .nul by tin- p of a branchial cirrus, 



- the dorsal one, on each parapodium. 



nus Notopygos Grubi Kinbei 



Body oval. Caruncle composed "i a plaited crest, arising from a horizontal plate, folded 



- margin. Branchiae ramified, not pinnate. Au accessory cirrus at tin- proximal side of 



each branchia. All bristles bifurcated, smooth or denticulated ; those of one or more anterior 



lents always denticulated along the inner border of their long limb. Two anal cirri, club- 



shaped, consisting of .1 reversed conical stalk and a semi:_dobular terminal piece. Anus dorsal, 



•me distance from the last segment. 



& 



1. Not > Horst. PI. IX, figs. 1 — 3. 



Horst, Loc. cit. Vol. XXXIII, p. J44. 



Sta - Noimini South-coast of Timor), surfacc. 9 specimens. 



The body has an oblong oval shape and a length from 45 to 75 mm., whereas the 

 number of segments amounts from 33 to 36. The colour is pale buff, in the middle of the 



m brown or violet, irregularly interrupted by a great number of white lines, crossing 



other in various directions; a dark band occurs around the base of each notopodium and also 



main stem of the branchiae is dusky coloured. Moreover the horizontal plate of the caruncle 



as well as the palpi have a dark hue and the accessory cirri of the anterior segments show a 



I stripe. ( >ver the dorsal side of each segment there runs a transverse groove, dividing it 



in an anterior and a posterior area; the last one is transversely folded or strongly wrinkled, 



but the anterior area is smooth and usually divided in three triangular tields, a median one 



and two lateral om ■ ' er the middle of the ventral side there runs a couple of dark parallel 



Jtudinal lin< 



The carun sists of a plaited crest arising from a horizontal plate, that is furnished 



ach side along its margin with 30 folds ; it extends till upon the anterior part of thi 



lent and is rounded posteriorly, not straightly cut off like in Notop. labiatus according to 



figure of Malaquin and Dehorni l ). The unpaired antenna is short, measurin il a third 



of the caruncle: the anterior pair of eyes larger than the posterior one. The mouth seems to 



be limit' irly by the 4' 1 ' segment, that is strongly folded in its middle. The anus is 



situated on the anterior part "t segment 25, usually upon the top of a conical papilla. The 



immence on the 5' segment; each of them consists of three large stem-, branching 



ly after their origin. The dorsal cirrus, arising behind the notopodial bristle-fascicle, 



• logie, t. XV, 1907, PI. 5 



