370 JOHNS HOPKINS UNIVERSITY MORPHOLOGICAL MONOGRAPHS. 



organs. The author's casually stated opinion that the lateral chambers 

 of the subneural gland, which he observed, are organs of hearing, is but 

 a sample of the far too many statements without study made by students 

 of the tunicates, which have only added to the confusion. 



Goppert calls attention to one point that had entirely escaped me, 

 namely, that there is a definite relation in most species between the 

 position of the chain-salpa in the chain and the position of the eye. He 

 points out that in individuals from the right side of the chain the long 

 axis of the eye is directed obliquely toward the right, while in indi. 

 viduals from the left side of the chain the eye points toward the left. 

 This gives importance to a slight though constant peculiarity I have 

 observed in the otherwise symmetrical eye of the chain Cyclosalpa 

 pinnata, which serves to determine the relation of the animal to the 

 stolon. In this species the individuals stand with both their antero- 

 posterior and their dorso-ventral axes at right angles to the stolon. In 

 the large dorsal eye of each individual, on the side distal from the 

 former attached end of the stolon, there is a small unpigmented spot 

 in the midst of the pigment area of the second region of the eye. (See 

 Fig. 10, Plate LVII, up.) 



