130 LeodicidcB from Fiji and Samoa. 



on the opposite side of the island in the harbor of Leone. Collections 

 were also made in the lagoon southwest of Nuuli and in the reef 

 west of the island of Aunuu. 



The specimens were narcotized in a solution of MgS04, 153 grams 

 to the liter, killed in 10 per cent formalin, and preserved in strong 



alcohol. 



SYSTEMATIC DESCRIPTIONS. 



In an earlier paper (Treadwell, 1921a) I have discussed the 

 anatomical features which are of most importance in the taxonomy 

 of the Leodicidse, and later study has led to no conclusions different 

 from those there stated, unless it is to further emphasize the im- 

 portance of the jaw in classification. I found the general character 

 of the jaw remarkably constant in any one species, especially in the 

 form of the plates and their color. Multiplication of genera and 

 subgenera on the part of taxonomists is a very unfortunate habit, 

 but there would be some justification for making a subgenus of 

 Leodice to include L. siciliensis Grube, L. cariboea Grube, L. paloloides 

 Moore, L. viridis Gray, L. uiridis var. vernalis Treadwell (see page 

 123), and L. dubia Woodworth, on the basis of their jaw structure. In 

 the relatively large size of the mandible, the limited tooth development 

 on the proximal plates, and the pecuUar appearance of the distal 

 ones, these differ from all others that I have seen. 



Students of this group have not agreed on the major classification 

 of the animals included in it. In an earlier paper (Treadwell, 

 1921a) I followed what seemed to be the majority opinion and 

 classified the Leodicidse as a family, with the subfamilies Leodicinse, 

 Lumbrinereinae, and Stauronereinie. Chamberlin (1919a), in a paper 

 which appeared after mine had gone to the editor, constructs the 

 superfamily Leodicoidea, putting under it the famiUes Leodicidse, 

 Lumbrinereidae, Onuphididie, and Dorvilleidae ( = Stauronereidae, see 

 page 166). In the present paper I shall follow my original arrange- 

 ment. 



Family LEODICID^. 



Annelida varying much in size in different species, ^vith or without prostomial 

 tentacles, nuchal cirri, eyes, and parapodial gills. Notopodiuni of parapodiuiu rudi- 

 mentary or apparently absent. Jaw of maxilla and mandible, the former of two or 

 more rows of plates, mostly toothed. 



SubfamUy LEODICIN.S. 



With dorsal and ventral parapodial cirri, with or without nuchal cirri and para- 

 podial gills. Prostomium with from 1 to 7 tentacles and one pair of palps more or 

 leas fused with the prostomium. 



Genus LEODICE Savigny. 

 Savigny, J. C, Sy:5teme des Annelidas 1930, p. 13. 

 Prostomium 2- or 4-lobed, the lobing often obscure. With 5 tentacles and 1 pair 

 of eyes. A pair of nuchal cirri on the second body-somite. Parapodia begin on the 



