ASCIDIANS COLLECTED IN PUGET SOUND. 267 



Plate XIII. 



Styela gibbsii, Stimpson, natural size. 



Dorsal tubercle of same, X 50. 



Alimentary canal and gonads of same, slightly 



enlarged. 

 Part of branchial sac, X 50. 

 Styela joannce, n. sp., natural size. 

 Same from the ventral edge to show base of 



attachment, natural size. 

 Part of branchial sac, X 50. 

 Alimentary canal and gonads of same, X 2. 



Plate XIV. 



Figs. 1 and 2. Two clumps of Cynthia haustor, Stimp., as 

 dredged in Scow Bay. 

 Molgula pugetiensis, n. sp., natural size. 

 Tentacles, dorsal tubercle, &c. 

 Same, with test removed, from right side. 

 Left side of the same. 

 Part of branchial sac from inside, X 50. 



Fig. 



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Fig. 



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