Leodicidce from Fiji and Samoa. 



149 



with the right proximal and distal paired plates, the former with 5, the latter with 8 

 teeth; figure 10 shows the left half of the forceps, the left proximal paired, and the 

 unpaired plates. The proximal has 6 large teeth. The unpaired plate has 6 teeth. 

 The forceps are slender and have very small carriers. It is not easy to understand 

 how such delicate jaws as these could function in chewing and they may have been 

 abnormal, though they are alike in all of the specimens I have. The mandibles have 

 slender shafts which are darker and evidently much harder than the maxillary plates. 

 They are dark brown, with the outer portion of the shaft next to the beveled portion 

 lighter in tint. The beveled portion is covered by a whitish incrustation (plate 4, 

 fig. 11). 



The hooked acicula is heavy, with an especially large subterminal tooth (text-fig. 35) . 



This species shows some points of resemblance to Leodice {Eunice) tentaculata 

 Quatrefages as described by Fauvel (1917, pp. 209-215, text-fig. 17), but differs in 

 that the dorsal and nuchal cirri are not articulated, the number of filaments is much 

 less, and the jaws have not the same structure. 



The type is in the American Museum of Natural History. 



Leodice gracill-cirrata, new species. 

 Plate 5, figures 1 to 8; text-figures 36 to 38. 



A slender, easily broken form, first found in loosely constructed tubes made of 

 stones and shells and fastened to the under side of rocks in Suva Harbor, Fiji. Later 

 they were found in cavities in the dead stag-horn coral, and in this latter locality were 

 without definite tubes. The body of the living 

 animal has a pearly luster with a good deal of 

 iridescence, a pink tint anteriorly because of the 

 blood, and the middle region decidedly purple. 

 Toward the posterior end there is a large dark 

 pigment spot on either side in each somite. The 

 pygidium has pigment spots. The whole pos- 

 terior portion may be colorless (except for the dark 

 spots), in which case the pygidium is pink. 



A specimen of average size measured after 

 preservation 220 mm. in length, with a peristo- 

 mial width of 2 mm., and this general width was 

 maintained for the greater part of the body, but 

 it tapered toward the pygidium. 



The prostomium (plate 5, fig. 1) is rather short 

 and obscurely 4-lobed. The median tentacle 

 extends to the posterior border of the fifth 

 somite, the inner paired to the anterior border 

 of somite 3, and the outer paired are a trifle 

 shorter than the inner. In preserved material the 

 median tentacle shows a slight trace of articula- 

 tions, the inner paired are jointed for their terminal half, the outer paired for about the 

 terminal third. The peristomium is as long as the three following somites, is noticeably 

 narrowest along its anterior margin, its lateral margin decidedly rounded. Somite 2 is 

 about one-third as long as somite 1, the nuchal cirri are long and slender, extending fully 

 to half the length of the outer paired tentacles. The pygidium (plate 5, fig. 2) carries 

 two pairs of anal cirri, the larger dorsal ones being stout at the base, but narrow rapidly 

 and are very long; the ventral ones are very small and slender. 



The tenth parapodium (plate 5, fig. 3) has a long dorsal cirrus which frequently has 

 an appearance of jointing due to superficial wrinkling, and a broadly lanceolate ventral 

 cirrus. Two aciculse are in the setal lobe and there is a tuft of needle aciculse in the 

 dorsal cirrus. The fiftieth parapodium (plate 5, fig. 4) has a rounded post-setal lobe 



n 



39 



Text-Figures 36 to 39. 



36 to 38. Leodice gracili-cirrala. 36, 

 compound seta X 250; 37, pectinate 

 seta X 250; 38, acicula X 250. 39, 

 ventral acicula of Marphysa simplex 

 X250. 



