16 COE 



marking is not represented on the lateral surfaces, but is sharp on the 

 dorsal surface, and is indicated on the ventral surface by a few scat- 

 tered white dots. The fourth marking is very sharp and extends as a 

 ring completely around the body. The fifth is broader than any of the 

 other rings. The sixth is usually merely indicated by a series of fine 

 dots. Posterior to the sixth, there are commonly as many as 150 more 

 or less distinct and perfect rings, arranged at fairly regular intervals 

 throughout the length of the body. They are much more conspicuous 

 on the dorsal than on the ventral surface. In fact a large number of 

 them are interrupted on the ventral surface and represented only by 

 isolated dots. When the rings are well developed each consists of two 

 very fine white rings lying side by side, with a fine brown ring between 

 them. Over the greater portion of the body are alternating wider 

 and narrower white rings, or double and single rings, but there are 

 always exceptions to the regularity of arrangement. The white lines, 

 both longitudinal and transverse, appear as if formed by a coating of 

 fine white particles on the surface of the body. 



The region of the proboscis-pore is very pale. Extending outward 

 and backward on each side from a point just above the proboscis-pore 

 is a shallow, horizontal groove. Each of the grooves is marked by a 

 black line, and each extends backward as far as the first transverse 

 white line. They do not quite meet in front however. The borders 

 of the mouth are pale in color. The sides of the brain region are dark 

 reddish. 



In alcohol the body is grayish as far back as the fourth white ring. 

 Here it abruptly changes to black, which fades into dark brown through- 

 out the remainder of the body. The markings are well preserved. 



The ^ side organs' are indicated as a pair of rounded pits lying just 

 anterior to the fifth white ring and immediately below the dorsal of 

 the two white, lateral, longitudinal lines on each side. 



Habitat. This species was found on the piles of a wharf at Vic- 

 toria, B. C., and was also found among hydroids, etc. at Sitka. The 

 worms were from 300 to 500 mm. long in extension, with a diameter 

 of about 2 to 3 mm. They inhabited grayish, fragile, parchment- 

 like tubes, which were commonly much twisted and coiled. But few 

 specimens were met with. 



3. CARINELLA CAPISTRATA sp. nov. 



pi. i, fig. i. 



This, like the preceding species, resembles C. superba (Kolliker) 

 Burger somewhat closely in color and general appearance. A careful 



