444 Prof. W. A. Herdman on the 



ASGIDIA CEA. 



ASCIDIiE SIMPLICES. 



Family 1. Molgulidae. 



^Ascopera nana, Herdm. Port Jackson. 

 ^Molgula mollis, Herdm. Port Jackson. 



Forhesi, Herdm. Port Jackson. 



■^ sydneyensis, Herdm. Sydney Harbour. 



* recumbens, Herdm. Port Jackson. 



inconspicua, Stimp. Port Jackson. 



? Molgula [Ccest'ra) parasitica, ^lacd. King George's Sound. 



? ( ) Jicus, Macd. Shark Bay. 



? ( ) pellucida, Macd. Shark Bay. 



? Ctenicella {Ascidia) tumulus, Quoy and Gaimard. Port 

 Western. 



"^ Molgula [Ascidia) sabulosa, Q. & G. Port Western. 



Family 2. Cynthiidae. 

 Subfamily Bolteniin^. 



Boltenia gihbosa, Heller {? = Ascidia spinifera, Q. & G.). 

 Bass Strait and Port Jackson. 



australis (Q. & G.). Port Jackson, Port Western, &c. 



p)achydermaiina, Herdm. Port Jackson itc. 



* tuberculata, Herdm. Port Jackson and Port Stephen. 



Subfamily Ctntriin^. 



Microcosmus affinis, Heller. Australia. 



polymorplms, Heller. Bass Str., 40 fath. 



Hellerif Herdm. Torres Straits and Araboina. 



propinquus, Herdm. Bass Str., 40 fath. 



Jidinii, V. Dr. Sydney. 



distans, Heller. New South Wales. 



* Draschit, Herdm. Port Jackson and Port Stephen. 



* australis, Herdm. Port Jackson. 



* Bamsayi, Herdm. Port Jackson. 



Ehabdocyntliin'f complanata, Herdm. Port Jackson, 6 fath. 



tenuis (?), Herdm. Aniboina. 



sp. (?), Sluit. Thursday Island. 



t I know of three other new species of Rhahdocynthia from the north 

 of Australia, but they arc not yet described. They are in the collection 

 brought home from Torres Straits by Professor A. C. IladJon. 



