1914] TreadweU: Polychaetous Annelids of the Pacific Coast 213 

 Trophonia minuta sp. nov. 



PL 12, fig. 32 



Total length not over fifteen millimeters. Its much flattened an- 

 terior end was smoothly beveled dorsally, and covered with fine sand- 

 grains. The remainder of the body is circular in outline on cross- 

 section and of nearly uniform diameter back to about the twenty- 

 fifth somite, where it abruptly narrows to not more than a quarter 

 of its former width. There is a row of inconspicuous papillae along 

 the anterior dorsal edge of each somite, and the first six or seven 

 somites have a similar roAv of minute papillae along their anterior 

 ventral edges. Otherwise the whole surface of the somites is smooth. 

 The posterior end of the animal was lacking in all specimens. 



Anterior tufts of setae are prominent and half as long as the entire 

 body. The dorsal setae of the remainder of the body are very short, 

 fine, delicate, and capillary, but otherwise essentially like the anterior 

 setae in form. There are three ventral hooks in a vertical row on 

 each somite, the most dorsal one being the longest, while the two 

 others are successively shorter and stouter (pi. 12, fig. 32). The head 

 was retracted in all specimens. 



Moore (1909a, p. 284) lists Trophonia papillata, Johnson, and 

 notes that one specimen was small and poorly preserved, possibly 

 being a new species. T. minuta is probably the same species as this 

 new one mentioned by Moore, and differs from other California 

 Trophonia thus far described in the very feeble development of the 

 papillae. That they are adults and not, as I at first supposed, im- 

 mature forms is shown by the fact that one was full of eggs. 



Collected in haul 1147, off La Jolla in 10 fathoms. 



Type in the Museum of the University of California; co-type in 

 the American Museum of Natural History. 



Trophonia inflata sp. nov. 



PI. 12, fig. 33 

 The type is eighteen millimeters long and five millimeters wide at 

 about one-fourth of its length behind the head. The diameter of the 

 head is about four millimeters. The posterior end of the body is very 

 narrow, barely 0.5 mm. wide at its end. This inflated condition 

 is unusual and may be due to the method of preservation. The 

 anterior setae are delicate and about twelve millimeters long. The 



