POLYCHAETOUS ANNELIDS FROM PHILIPPINE SEAS. 605 



Genus IPHIONE Kinberg. 



IPHIONE FUSTIS, new species. 

 Plate 46, figs. 4-8. 



Type.— Cat. No. 18941, U.S.N.M. Specimen young-. Length, 

 5.2 mm. Greatest width, 5 mm. Body oval, narrowing anteriorly 

 and posteriorly. Number of somites, 26. Scales, 13 pairs. 



Head (fig. 4) 3 mm. longer than broad. Palps, 3.5 times us long 

 as head, with longitudinal rows of papillae. Tentacular cirri, two on 

 each side, extending to end of palps: borne on basal portion one-half 

 length of palps. Tentacles, two, converging toward the median lin3 

 anteriorly. Blunt anteriorly directed lobe in place of median ten- 

 tacle. Eyes, two pairs, posterior pair on postero-lateral margin of 

 the head. Anterior pair a short distance in front of these, but so 

 placed as to be scarcely seen from the dorsal surface. 



Eltyra (tig. 5) reniform, divided and subdivided by honeycomb 

 reticulum. Postero-lateral surface of dorsal side armed with cudgel- 

 like spines. First elytra ovate. 



Parapoclia (fig. 6) small, not divided. Dorsal cirrus long, pro- 

 vided with papillae, extending to ends of dorsal setae. Ventral 

 cirrus extending to lateral edge of parapodium; provided with 

 papillae. Dorsal setae bundle very thick, arising anteriorly and just 

 medianly to ventral setae bundle. 



Setae of two kinds. Dorsal (fig. 7) long and slender with naked 

 tip. Subterminal portion provided with leaf-like appendages, gradu- 

 ally increasing in size just below tip, but soon becoming uniform. 

 Ventral (fig. 8) heavy, yellow, with fine irregular serrations and 

 naked, blunt tip. 



Collected at station D5141, Jolo Light, 29 fathoms, coral sand 

 bottom. Paratypes collected at Tanguingui Island Light, 30 fathoms, 

 fine sand bottom : North of Cebu ; Caguayan Point, off east coast Leyte 

 Island, S fathoms. 



Genus LAGISCA Malmgren. 



LAGISCA? HEXACTINELLIDAE Mcintosh. 



Lagisca f hexactinellidae McIntosh (1SS5), p. 94, pi. 4, fig. 5; pi. 12a, figs. 

 14-16. 

 Specimen 15 mm. in length. Missing parts identical with those 

 missing in Mcintosh's specimen. No data given as to habitat of 

 form. 



Collected at station D5536, Apo Island, 279 fathoms, green mud 

 bottom. 



