OF THE 



fi UNIVERSITY I 



OF 



TUNICATA. 



By W. A. HEEDMAN, D.Sc., F.E.S., 



Professor of Zoology in the University of Liverpool. 



(7 Plates.) 



THIS is a small but interesting collection consisting of about twenty-two species, 

 represented by about 2,000 specimens. By far the greater number of the latter 

 belong, however, to a few species of Salpidse. If we omit the Thaliacea and Larvacea, 

 the remaining simple and compound Ascidians number only thirty-three specimens, 

 belonging to fourteen species. They are distributed in families as follows : 



ASCIDIACEA : 



Styelidse two species. 

 Halocynthiidse two species. 

 Bolteniidae one species. 

 Molgulidse four species. 

 Ascidiidse one species. 

 Clavellinidse one species. 

 Didemnidse two species. 

 Polyclinidse one species. 



THALIACEA : 



Salpidse four species. 



Dolioliclse one species. 

 LARVACEA : 



Appendiculariidse at least two species. 



Of these I find that I must describe ten (two species of Styela, one of Halocynthia, 

 one of Boltenia, four of Molgulidse, and two compound Ascidians) as new to science, 

 although none of them are very remarkable forms in any way. The greater part of 

 the collection was obtained through closely adjacent holes in the ice near the Winter 

 Quarters of the ' Discovery ' in McMurdo Bay. Those species labelled simply " Winter 

 Quarters " must be regarded as coming from shallow water between the ship and the 

 shore in that locality. 



I have already * expressed the view that the Ascidian fauna of the far South is 



* Report of British Association for 1892, p. 787 ; and elsewhere. 



