344 HR. BAIBD ON SEVERAL GENERA OF EUNIOEA. 



Sp. 2, Eunice Elsti, Baird. 



Body about 4| inches long, and consisting of about 12(fseg- 

 ments. Head with two lobes, which are round and very promi- 

 nent. Tentacle, antennae, and palpi moniliform, of considerable 

 length. Tentacle longer than antenna), being equal in this respect 

 to the transverse diameter of the first seven segments. Tentacular 

 cirri moniliform also, and about equal in length to the transverse 

 breadth of the buccal segment. This segment is equal to the 

 transverse breadth of the four succeeding segments, and has its 

 ventral margin not crenated, but cleft by two short incisions in 

 the centre. Branchiae commencing on the sixth foot ; pectinations 

 or branchlets at first only three or four, increasing in number in 

 the succeeding segments to eighteen. Dorsal cirri moniliform, 

 rather long and finely pointed. Ventral cirri short and conical. 

 Anal cirri moniliform, of moderate length. 



Eeet : — Simple setae long, filiform, and acutely pointed. Pec- 

 tinate setae, with numerous fine pectinations or teeth, the outer 

 one at both sides being a little longer than the others. The com- 

 pound setae have the shaft rather short and stout, and the falci- 

 form appendage bluntly toothed, the teeth being rather obtuse. 

 Aciculae two, strong, dark-coloured, and bluntly pointed. No 

 uncini or booklets visible. 



Hah. North Australia, JElsey. 



Sp. 3. Eunice madeibensis, Baird. 



==? Eunice adriatica, Schmarda, Neue wirbellose Thiere, i. p. 124, tab. 32. 

 fig. 257. 



Body convex dorsally, flat ventrally, with a furrow running 

 down the centre, wrinkled throughout. Our specimens are im- 

 perfect at the caudal extremity ; but they consist of about 286 

 segments, and are about 5 inches long. Head with two lobes. 

 Buccal segment and portion to which the tentacular cirri are at- 

 tached equal in length to the transverse diameter of the four suc- 

 ceeding segments ; its ventral margin smooth, not crenated, and 

 straight-edged. Tentacle, antennae, and palpi rather short. Ten- 

 tacle longer than antennae, indistinctly moniliform. Tentacular 

 cirri short, not jointed, and not equal to the transverse diameter 

 of the buccal segment. Dorsal cirri rather long and slender, 

 ventral cirri short and conical. Branchiae not commencing till 

 near the 200th segment, and consisting of only one moderately 

 long filament. 



