TUNICATA. 



By W. A. IIkkdman, D.Sc, F.K.S., 



Professor «f Zoology in the Un'wersihj of LioerjMol. 



(7 Plates.) 



This is a small but iutoresting 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 Salpida). 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 : 



Styelidae — two species. 



Halocynthiida3 — two species. 



Bolteniidie — one species. 



Molgulidaj — four species. 



Ascidiidai — one species. 



Clavellinidie — one species. 



Didemnidaj — two species. 



Polyclinidaj — one species. 

 Thaliacea : 



Salpida;^four .species. 



Doliolida3 — one species. 

 Larvacea : 



Appendiculariidaj — at least two species. 



Of the.se I find that I must describe ten (two species of Stycla, one of Ilaloci/ntlda, 

 one of Doltinia, four of Molgulidse, and two (-ompouud 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 ' Di.scovery ' in McMurdo Bay. Those species lal)elled simply " Winter 

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

 shore iu that locality. 



I have already * expressed the view that the A.scidiaii fauna of the far (South is 

 * Report of Brituh ABsociatiou lor 1U92, p. 7U7 ; aud elsewhere. 



