614 BULLETIN" 100, UNITED STATES NATIONAL MUSEUM. 



LEODICE (EUNICE) MICROPRION Maicnzcllcr. 



Eunice microprion MAKENiELLEE (IS79), p. 135 (sep. i». 'ID, pi. 5, fig. 1. 



Specimens collected at station D5149, Sirun Island, 10 fathoms, 

 coral and shell bottom and station D5148, Sirun Island, 17 fathoms, 

 (dial sand bottom; station D5411, Lauis Point Light, 145 fathoms, 

 green mud bottom, temperature 55.2° ; station D5641, Kalono Point, 

 39 fathoms, sand and shell bottom; station D5280, Malavatuan Island, 

 193 fathoms, gray sand bottom, temperature 49.6° ; station D5523, 

 Point Tagolo Light, 182 fathoms, Globigerina and sand bottom, 

 temperature 54.3° ; station D5519, Point Tagolo Light, 230 fathoms, 

 temperature 52.3° ; station D5589, Mabul Island, 260 fathoms, fine gray 

 sand and gray mud bottom, temperature 45.7° ; and station D5536, 

 Apo Island, 279 fathoms, green mud bottom, temperature 53.5°. 



Several young specimens of this species were found, differing 

 from Marenzeller's description of the adult worm in having a 

 softer, paler jaw apparatus and fewer gills. Specimens collected at 

 station D5249, Laming Point, 23 fathoms, coral and sand bottom; 

 station D5146, Sulade Island, 24 fathoms, coral sand and shell bot- 

 tom; and station L5355, Balabao Light, 44 fathoms, coral and sand 

 bottom. 



LEODICE LEVIBRANCHIA, new species. 



Plate 50, figs. 1-8. 



Type— Cat. No. 19018, U.S.N.M. Specimen, 100 mm. in length; 

 10 mm. in width anteriorly, gradually decreasing to 5 mm. pos- 

 teriorly. Anal cirri lacking. Number of somites, about 105 ; about 

 20 in the middle covered with fragment of tube. 



Head (fig. 1) provided with five tentacles, the three median ones 

 of the same length (about as long as first three somites). Two lat- 

 eral tentacles of equal length, being two-thirds as long as median 

 tentacle. Prostomium prominent and bilobed. Eyes roughly tri- 

 angular in shape, situated at base of lateral tentacles. Peristomium 

 or first somite broad and smooth. Second somite about one-third 

 as long as the first, and provided with short tentacular cirri. Third 

 somite provided with parapodia. 



Dental appartus (fig. 2) dark brown. Maxillae jointed posteriorly 

 and notched for muscle attachment. Curvature moderate. Surface 

 smooth. Dental plates large, deeply notched posteriorly for muscle 

 attachment. Each provided with seven large teeth, with irregularity 

 in shape of last two. Lateral accessory plates about two-thirds 

 length of dental plates, bearing 10 teeth each. Unpaired plate of 

 right side finely toothed. Mandibles (fig. 3) brown, with clear white 

 dental plates ventrally. 



Anterior parapodia (fig. 4) with long dorsal cirrus and large 

 blunt ventral lobe. 



No hooks; acicula ending in blunt points. 



