1910.] NATURAL SCIENCES OF PHILADELPHIA. 357 



transverse white lines which converge and meet on each side at the 

 dorsal tubercle or elytrophore. Parapodia, elytrophores, notocirri, 

 neurocirri, prostomium, palps, tentacular cirri, median ceratophore 

 and under parts unpigmented or (as preserved) white. Facial ridge, 

 paired lips and lateral ceratophores pale brown. Elytra translucent, 

 pale brown, the large papillae chocolate. The deep solid pigmentation 

 of the dorsum is very characteristic of this species among California 

 Polynoidae and very few examples fail to exhibit it. 



One small example has the proboscis protruded, 2.8 mm. long, about 

 1 mm. in diameter, subcylindrical, depressed at the orifice which is 

 surrounded by nine dorsal and nine ventral papillae. Jaws deep 

 brown, of the usual form, the fangs small, the cutting plates broad and 

 directed laterad. 



This species differs from Evarne sexdentata Marenzeller especially in 

 the character of the elytral papulation, the horny papillae in the latter 

 being pointed and often bifid, the soft papillae much smaller. The 

 setae differ but slightly. 



Although represented in the collection by a considerable number of 

 specimens this species is so fragile that not a single perfect example 

 is known. The type is one of two that have all segments and both of 

 these lack elytra and most of the cirri, etc. Not a single one possesses 

 the median tentacle or anal cirri and only eight elytra in all are 

 known. Most of the specimens are anterior ends of fifteen to 

 twenty segments without elytra or cirriform appendages. Another 

 source of imperfection is the frequency with which the parapodia 

 are cast off, some specimens being completely denuded for a consider- 

 able distance. There is some variation in the length and sculpturing 

 of the tips of the notopodial setae and in the length of the cephalic 

 peaks due to varying states of contraction. The only specimen con- 

 taining nearly mature ova was taken at station 4,418. Two specimens 

 were taken at stations 4,413 and 4,423; only one at each of the others. 



Stations 4,351, Point Loma Light, vicinity of San Diego, 423-488, 

 soft green mud; 4,400, lat, 32° 50 1 N., long. 118° 03 1 W., 500-507 

 fathoms, green mud; 4,402, off San Clemente Island, 542-599 fathoms, 

 green mud (cotype); 4,407, off Santa Catalina Island, 334-600 

 fathoms, gray sand and rocks; 4,413, off Santa Catalina Island, 

 152-162 fathoms, fine sand (type and cotype); 4,418, off Santa 

 Barbara Island, 238-310 fathoms, dark mud and sand (cotype); 

 4,421, off San Nicolas Island, 291-298 fathoms, gray mud and rock; 

 4,423, same, 216-339 fathoms, gray sand, black pebbles and shells; 

 4,430, off Santa Barbara Island, 197-281 fathoms, black sand, pebbles 

 and rocks; 4,436, off San Miguel Island, 264-271 fathoms, green mud. 



