TUNICATA. 
By W. A. Herpmay, D.Sc, F.R.S., 
Professor of Zoology in the University of Liverpool. 
(7 Plates.) 
TuIs 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 Salpide. 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 : . 
Styelidee—two species. 
Halocynthiidee—two species. 
Bolteniidee—one species. 
Molgulidee—four species. 
Ascidiidee—one species. 
Clavellinidee—one species. 
Didemnidze—two species. 
Polyclinidze—one species. 
THALIACEA : 
Salpidee—four species. 
Doliolidee—one species. 
LARVACEA : 
Appendiculariidee—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 Molgulide, 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. 
