236 THE ANNELIDA POLYCHAETA. 



lowly incurved, the sides convex caudally, concave toward anterior end, with the 

 greatest width across anterior end; anterior margin forming a very obtuse 

 reentrant angle; plate black along anterior margin and down the median line. 

 The blade is of the usual general shape. (Plate 53, fig. 3). Maxillae II with 

 six large teeth on the left piece, seven on the right. Maxillae III with the right 

 piece strongly, almost semicircularly, bent; bearing eleven (or twelve?) smaller 

 teeth; the left paired piece less strongly curved, with eight teeth, the unpaired 

 piece also apparently with eight somewhat smaller and paler teeth. The mandi- 

 bles are nearly uniform whitish throughout. The anterior margin of the mastica- 

 tory plate is little, very obtusely angularly, incurved, but not dentate; the outer 

 edge is a little incised. The surface of the plates is finely striate, the stems are 

 broadly united anteriorly. They are straight, each broad at the anterior end 

 and narrowing conspicuously caudad. (Plate 53, fig. 2). 



Locality. Pamnotu Islands: Makemo. 21 October, 1899. 



One specimen. 

 While there might seem the possibiUty that this may be the young of a 

 previously described species, this is very improbable in view of the highly dis- 

 tinctive combination of characters it presents, and especially of the fact that the 

 specimen contains well-developed eggs. The presence of branchiae as wholly 

 simple filaments on all but the first six and last six pairs of parapodia, the strongly 

 jointed, submoniliform tentacles, the extremely short tentacular cirri, the 

 annulate notocirri, and anal cirri, the essentially tridentate crochets, and the 

 form and dentition of the mouth-parts would seem clearly to establish this speci- 

 men as the type of a very distinct species. 



Leodice siciliensis (Grube). 



Eunice siciliensJs Grube, Actin. echinod. wiirmer Mittelmeeres, 1840, p. S3; Arcliiv. naturg., 1851, 

 17, p. 41; Ehlers, Borstenwurmer, 1864, p. 353, pi. 16, fig. 1-7; Grubb, Annulata Semperiana, 

 1878, p. 161; Gravier, Nouv. aroh. Mus. hist, nat., 1900, ser. 4, 2, p. 261; Crossland, Marine 

 fauna Zanzib. & Brit. E. Africa. Polychaeta, 1903, 3, p. 323, pi. 22, fig. 8, 9; Atjgener, Fauna 

 Sudw.-Austr. Polych., 1, 1913, 4, p. 279. 



Eunice adriatica Schmarda, Neue wirbellose thiere, ISiJl, 1, pt. 2, p. 124, pi. 32, f. 257. 



Eunice taeyiia CLAPARfeDE, Mem. Soc. phys. hirt. nat. Geneve, 1864, 17, p. 120, pi. 4, fig. 11; Annelidas 

 Chetop. Golfe Naple.s, 1868, p. 135. 



Eunice ebranchiata Qu.\trefages, Hist. nat. aniiel6s, 1865, 1, p. 316. 



Eunice bitorqitata Grube, Jahresb. Schlesch. gesellsch., 1869, 49, p. 28. 



Eunice leucodon Ehlers, Zool. jahrb. Suppl., 1901, 2, p. 261; Festsch. K. gesellsch. Gottingen, 1901, 

 p. 128, pi. 16, fig.1-10. 



A single, unusually long specimen broken into two pieces is in the collection. 

 The body in general is greyish brown, in some parts of a more or less rusty tinge. 



