386 ' PROCEEDINGS OF THE ACADEMY OF [April, 



Four specimens occur in the present collections and have extreme 

 lengths of 9-17 mm. They agree fully with the types. 



Stations 4,381 and 4,382^ off south point of North Coronado Island, 

 vicinity of San Diego, 642-667 fathoms, green mud. 



Laetmonice producta wyvillei Mcintosh. 



L, producta ivyvillei Mcintosh, Challenger Reports, Zool., Vol. XII, pp. 

 44, 45, PI. VII, fig. 3, IV A, figs. 9-11. 



This species is also recorded from Hawaiian waters by Treadwell, 

 Mcintosh's specimens had eighteen pairs of elytra. The two in this 

 collection have only fifteen and sixteen pairs respectively with thirty- 

 nine setigerous segments. One of them is evidently regenerating 

 posteriorly. One specimen is much coated with silt. Villiform 

 papillae are chiefly limited to the oral region. 



The protruded proboscis of the larger example is 9 mm. long and 

 3 mm. in diameter, cylindroid. At the end, surrounding the orifice, 

 is a dense brush of fine papillae above and below, separated laterally 

 by a small rounded eminence with a small papillae below and one above 

 the lateral line. The fine papillae are really the fimbriated borders 

 of closely packed lamellae. No jaws. 



Station 4,397, off Santa Catalina Islands, Lat. 33° 10' 15" N., Long. 

 121° 42' 15" W., 2,196-2.228 fathoms, gray mud. 



Laetmonice pellucida Moore. 



Lcetmatonice pellucida Moore, Proc. Acad. Nat. Sci., 1903, pp. 420-422, 

 PI. XXIII, figs. 19 and 20. 



These specimens agree fully with the types taken in Bering Sea. 

 They all have fifteen pairs of elytra which nearly or just meet medially 

 without overlapping. The ventral villiform papillae are confined to 

 the posterior lip. The specimens vary in length from 20 to 34 mm. and 

 several contain egg strings. Compared with L. producta wyvillei the 

 tubercles of the notopodial spines are much larger and the portion of 

 the neuropoclial setae beyond the spur is shorter while the hairs are 

 nearly twice as long as in that species. 



Stations 4,353, 4,354, off Point Loma Light-house, vicinity of San 

 Diego, 628-650 fathoms, green mud; 4,382, south of North Coronado 

 Island, 642-666 fatlioms, green mud; 4,389, off Point Loma, 639-671 

 fathoms, green mud and gray sand. 



SIGALBONID^. 



Of the five species representing this family four are new to the 

 region and three have not been previously described. 



