344 PROCEEDINGS OF THE ACADEMY OF [June, 



Proboscis of type 8.5 mm. long. 2.4 mm. in diameter at orifice; of 

 largest specimen 16 mm. long, 3 mm. in diameter at base and 4 mm. 

 at orifice. It is somewhat trumpet-shaped, gradually widening to the 

 somewhat flaring distal end which is surrounded by a circle of 18 to 20 

 low, rounded, soft papillae more or less incised at the base and in some 

 cases cleft in two. When protruded the proboscis has a slight spiral 

 twist and is marked by three narrow, raised longitudinal lines on each 

 side, the dorsal and ventral intervals between those of the two sides 

 being one-third more than the lateral intervals between those of the 

 same side. The general surface is marked with fine irregular wrinkles 

 and usually, but not always, with minute granulations which are 

 slightly more conspicuous along the raised lines. 



Stations 4,430, off Santa Cruz Island, April 14. 197 fathoms, black 

 sand and pebbles, six specimens, two of which (including the type, a 

 female filled with large ova) are mature; 4,423, off San Nicolas Island, 

 April 13, 339 fathoms, gray sand, black pebbles, shells, one young 

 specimen, in which the longest (second dorsal) tentacular cirri each 

 bears a symmetrical swelling on its anterior face near the middle. 

 Eulalia nigrimaculata sp- nov. PI. XVI, fig-s. 24-26. 



Two complete specimens considerably contracted have the follow- 

 ing measurements: Type 33 mm. long; maximum width near middle 

 body only 1.5 mm., extreme width between tips of parapodia 3 mm.; 

 number of segments 89 ; female with eggs. Cotype 36 mm. long with 90 

 segments. 



Prostomium subglobose, slightly depressed, nearly circular in out- 

 line as seen from above; profile strongly convex, sloping downward 

 anteriorly; sharply differentiated from peristomium. Eyes one pair, 

 brown, with well-developed lenses, large, nearly one-fourth width of 

 prostomium, midway of the length and close to the lateral margins 

 of which they are situated. On the type the right eye is enormously 

 and abnormally enlarged and occupies the most of that side, to the dis- 

 placement of the dorsal right tentacle. Frontal tentacles widely sepa- 

 rated, the dorsal just outside of line of lateral border of eyes, the ventral 

 slightly nearer together; length of dorsal equal to prostomial width, with 

 swollen fusiform basal half and abruptly contracted filamentous distal 

 half ; ventral similar but with much shorter terminal filament. Median 

 tentacle (present in type only) arising between eyes, slightly longer than 

 frontal tentacles, with less swollen base and regularly tapered. 



Peristomium and II coalesced, forming a short distinct ring above, 

 crowded forward beneath the prostomium, at the sides of which the 

 peristomium appeal's. Mouth large, bounded by a nearly smooth 



