130 Transactions of the Canadian Institute. [vol. ix 



body-wall and not bound together, but each projects freely into periphar- 

 yngeal cavity. Eggs retained. 



Siphonal vela narrow, adnate to siphonal wall, the atrial with scat- 

 tered short filiform tentacles on its lower (inner) surface. Alimentary 

 canal more or less Z-shaped. Anus with lobed margin. 



Type species — K. vancouverensis. 



This genus comprises a small group of species all from the West 

 Coast of North America. In the current classification they would be 

 placed in the genus Styela. 



K. vancouverensis sp. n. 



Short cylindrical, length being about twice the diameter. Attached 

 by posterior end and part of ventral surface, therefore ascending from 

 the attached surface. Surface minutely roughened, with indistinct 

 tubercles on siphons. Up to 25 mm. in length and 9 mm. in diameter. 



From 10 to 22 tentacles. Formula for longitudinal bars, — example, 



Right side. 2 (10) i (6) i (9) i (6) i. 



Intermediate (internal) transverse vessels. From 9 to 13 long 

 narrow stigmata in each mesh. 



From 12 to 18 gastric folds. From 8 to 12 anal lobes. Testicular 

 lobes chiefly along the ventral side of the posterior part of each ovary. 



Numerous specimens attached to rocks at low tide mark. Departure 

 Bay and Ucluelet. 



K. udueletensis sp. n. 



Cylindrical, attached by posterior end, which may have radicoid 

 processes. 



From 30 to 36 tentacles, for the most part two sizes which alternate 

 with each other. 



Eighteen gastric folds. About 16 anal lobes. Testicular lobes along 

 both sides of posterior part of each ovary. 



In other respects this species is the same as the last. They are 

 doubtfully distinct, but as yet I have seen no intermediates. 



Two specimens were obtained in a few fathoms at Ucluelet. 



K. yakutaiensis (Ritter). 



Syn. Styela yakutatensis Ritter, Proc. Wash. Ac. Sc, vol. Ill, p. 239. 



This is a stalked species, with smooth surface, and the oral aperture 

 bent ventrally. 



It occurs in numbers near low tide mark, attached to rocks, at Uclue- 

 let. 



K. greeleyi (Ritter) of Bering Sea is another stalked species of this 

 genus. It differs from this one in having a shorter body, a longer stalk, 

 longer testicular lobes and spinules which are acicular. In the three 



