NO. 1 HARTMAN : POLYCHAETOUS ANNELIDS 163 



inferior limbate setae. By the thirtieth parapodium, the postsetal lobe is 

 longer, slenderer; a thirty-fifth parapodium is shown in pi. 12, fig. 254; 

 it is supported by 2 dark and one light brown aciculum and has 3 dorsal 

 limbate setae and 3 simple hooks. Farther back the posterior lobe con- 

 tinues to be about as long, but the limbate setae gradually drop out ; also, 

 only a single black aciculum occurs in far posterior parapodia (pi. 12, fig. 

 256). The notopodium is represented throughout by a reduced, embedded 

 fascicle bearing a few slender, colorless rods. 



The maxillary formula appears to be fairly constant in the specimens 

 examined. Maxilla II has 4 teeth on a side, increasing in size distally, 

 maxilla III has 2 well-defined teeth on a side, and maxilla IV has a 

 single, sharp tooth on each side. The carriers are sometimes shorter than 

 originally shown (Moore, 1911, pi. 19, fig. 126), but the mandibles are 

 about the same. 



Distribution. — L. index is known to occur only off southern Cali- 

 fornia, in depths of 16 to 704 fms. 



Lumbrineris californiensis, new species* 

 Plate 12, Figs. 257-262 



Collections.— m^-3^ (1); 889-38 (2); 892-38 (1); 1003-39 (1) 



1126-40 (6); 1130-40 (7) 

 1160-40 (2); 1163-40 (1) 

 1191-40 (1); 1197-40 (1) 

 1235-41 (1); 1236-41 (1) 

 1321-41 (1); 1332-41 (2) 



1024-39 (1); 1026-39 (1); 1120-40 (1) 



1131-40 (2); 1142-40 (1); 1143-40 (2) 



1171-40 (1); 1178-40 (2); 1181-40 (1) 



1202-40 (1); 1205-40 (2); 1219-40 (1) 



1237-41 (2); 1241-41 (3); 1275-41 (2) 



1341-41 (1); 1358-41 (2); 3823 Burch, San Pedro, California, in 10 



fms (1). 



Many large, robust individuals of a species believed to be undescribed 

 have been recovered from southern California. Length of 191 segments 

 (posteriorly incomplete) is 85 mm; another (coll. 889-38) of 195 seg- 

 ments measures about 130 mm long. The prostomium is more or less de- 

 pressed conical, longer than wide at the base, narrower than the first 

 segments. The first (apodous) segment is about 1^2 times as long as the 

 second, but the second is about as long as the first setigerous ring. The 

 first parapodia are proportionately tiny, increase in size rapidly to about 

 the fifteenth to twentieth segment, after which they are conspicuous. The 

 anteriormost parapodia have an auricular postsetal lobe (pi. 12, fig. 



* The description of L. ligulata Berkeley (1941, p. 38) has just been received, 

 after the completion of this manuscript. It nearly approaches this species, but the 

 maxillary dentition differs and the color of acicula is not given. 



