DESCRIPTION OF SPECIES 



95 



Family CORELLIDAE Lahille, 1887 



Subfamily Corellinae Herdman, 1882 



Genus Corella Alder & Hancock, 1870 



Corella eumyota Traustedt 



Corella eumyota Traustedt, 1882, pp. 271, 273, pi. 4, figs. 2, 3; pi. 5, figs. 13, 14. 

 For synonymy see van Name, 1945, p. 212. 



Occurrence. St. 55: Falkland Islands, 10-16 m. St. 1652: Ross Sea, 567 m. 



Remarks. I have nothing to add to the descriptions already existing of this well-known species. 

 Van Name (1945) discusses the problems involved in determining the probable synonyms of the 

 species. 



Distribution. Antarctic (Graham Land, Kaiser Wilhelm II Land, Ross Sea, PWilkes Land), Sub- 

 antarctic (Falkland Islands, coast of Chile, Magellan region, Auckland Islands, Macquarie Islands), 

 South Africa, St Paul (Indian Ocean), New Zealand (North and South Islands), south and west 

 Australia, Tasmania. 



Order PLEUROGONA Perrier, 1898 



Suborder STOLIDOBRANCHIATA Lahille, 1886 



Family STYELIDAE Sluiter, 1895 



Subfamily Botryllinae Adams, 1858 



Genus Botryllus Gaertner (in Pallas), 1774 



? Botryllus separatus Sluiter (Text-fig. 32) 



Botryllus separatus Sluiter, 1904, p. 100, pi. 15, fig. 22. 



Occurrence. St. 934: North Island, New Zealand, 98-92 m. 



External appearance. The single example is a brown colony approximately 8-o by 4-5 cm., soft 

 and thick. There are numerous round, oval or somewhat elongated systems of zooids. Groups of 

 vascular ampullae lie between the systems and also form a fringe round the margin of the colony. 



1.0 mm 



Text-fig. 32. ? Botryllus separatus Sluiter (St. 934) : Zooid. 



Zoom (Text-fig. 32). The zooids attain a maximum length of 3 mm. and are golden-brown in 

 colour in the preserved state. The oral opening (0.0.) is sessile and without lobes, and the atrial 

 opening (a.o.) is large, exposing part of the dorsal surface of the branchial sac. 



