Ttmicata. 191 



A. placenta and A. mcridionalis, Corynasddia suhmi, Ahyssascidia 

 vasculosa, Eugyra hergtidcncnsis, Ascopera gigaiitca and A. p)C,dun- 

 culata, Molgida gigantea and 3f. jpcduncidata, Goodsiria coccinca and 

 G. pedunculata, Culcolus recumbens and G. pcrlucidus, Fungulus 

 cincreus, Bathyoncus mirahilis, Styela ladea, S. sericata, S. grandis, 

 S. co7ivexa, and Pharyngodictyon miraliU, Colella pedicnculata and 

 G. concreta, Amaroucium variahile, Gliorizocormus reticulatus, Tylo- 

 hranchion speciosum, Atopogaster gigantea and A. elongata, wei'e 

 evidently a marked feature of the fauna. Since the ' Gludlenger ' 

 expedition the ' Belgica ' and the * Veddivia ' have brought home col- 

 lections from the far south. These are being worked out, but no 

 results in regard to the Tunicata have so far ^ been published. 



The present collection, made by the officers of the ' Souther )i Gross ' 

 along the beach and in the shallow water at Cape Adare, Victoria 

 Land, consists of two species of simple Ascidians belonging to the 

 family Cynthiidae, six species of compound Ascidians, five of which 

 are Polyclinidae, and of a number of specimens of Salpidae, all of 

 which seem to belong to the chain-form of Salpa runcinata-fusiformis. 

 Four of the species seem new to science : a Tylohranchion, a Poly- 

 clinum, and two species of Psammaplidmm, but none of these can be 

 said to l3e in any way remarkable. The Tylohranchion is interesting 

 as adding a new species to a genus only known from the Southern 

 Ocean. 



ASCIDIACEA. 



ASCIDIAE SIMPLICES. 

 Family CYNTHIIDAE. 

 Sub-Family BOLTENINAE. 



Boltenia pachydermatina. (Plate XIX., figs. 1 and 2.) 



(See 'Challemjer'' Eep., Ft. I., p. 89; also Cat. Tunicata Australian Mus., 

 PI. Cyn. L, fig. 1.) 



About twenty specimens of this large species were obtained from 

 " Adventure Bay, Tasmania, 12th Dec, 1898, along the beach." The 

 individuals range from 8 cm. to 22 cm. in total length, and closely 



1 December, 1901. 



