610 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



rated. Setose type rare (pi. 48, fig. 3). Setae of thirteenth para- 

 podium of two kinds, the most abundant of the falcate type (pi. 48 y 

 fig. 4) with short terminal portion without serrations. Setose type 

 rare. Similar to those of heteronereid parapodium but with shorter 

 terminal blade. 



Type collected from Limbe Strait and paratopes from Leyte 

 Sound, Port Dupon. 



Family NEPHTHYDIDAE. 



Genus NEPHTHYS Cuvier. 



NEPHTHYS MIRASETIS, new species. 



Plate 48, figs. 5-S. 



Type. — Cat. No. 18950, U.S.N.M. A complete specimen, 45 mm. 

 in length, including extruded proboscis. Width, 4 mm., not includ- 

 ing setae. Number of somites, 79, the last nine greatly reduced in 

 size and terminating in a single anal cirrus. 



Head (fig. 5) square, with rounded corners. Posterior area 

 faintly marked with grayish oblong spots. Tentacles conical; sub- 

 tentacles similar but longer. Proboscis set with numerous rows of 

 papillae, gradually decreasing in size posteriorly. Not more than 

 nine in a row in type specimen. Mouth a dorso-ventral slit sur- 

 rounded by distal papillae. 



Parapodia (fig. 6) divided into noto- and neuro-podia. Dorsal 

 lamella of notopodium moderate in size. Gill large and curved,, 

 borne on posterior face of notopodium. Dorsal cirrus simple, aris- 

 ing near base of gill. Neuropodium provided with small simple 

 gill dorsally. Ventral cirrus conical, not reaching beyond para- 

 podium. Ventral lamella not prominent anteriorly, gradually in- 

 creasing to slightly larger dimensions posteriorly. 



Setae of three kinds. Most abundant simple non-serrated setae of 

 capillary type. Barred setae (fig. 7) present, at base of setae bundle 

 in most parapodia. Bidentate setae (fig. 8) with extra serrations 

 present at base of setae bundle in a few parapodia. 



Collected at station D5161, Tinakta Island, 16 fathoms, fine sand 

 and black specks bottom. 



Family AMPHINOMIDAE. 



Genus AMPHINOME Brugiere.. 



AMPHINOME ROSTRATA Pallas. 



Amphinome rostrata Pallas, Mcintosh (18S5), p. 21, pi. 1, fig. 7. 

 Collected at station D5332, Apo Light on "driftwood at surface."' 



