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Art. VI. — Some New Species of Bryozoa from the Marion 

 Islands* with Notes on Bicellaria Grandis. 



By J. R. Y. Goldstein. 



[Read 9th June, 1881.] 



On looking over a few specimens, part of a series kindly 

 distributed by officers of the u Challenger " while in Mel- 

 bourne, but only recently brought under my notice, I 

 found six species of Bryozoa, marked as from the above 

 locality. One was the well-known Idmonea marionensis. 

 The other five appear to be new ; and as they happen to be 

 specially interesting just now, I have considered it advisable 

 to describe and figure them at once, rather than wait for 

 the appearance of Mr. Busk's work on the " Challenger" 

 collection, which will probably not be available for some 

 time, and which may not contain the present species. 



I am encouraged in this haste to announce new forms by 

 similar contributions that have appeared recently in several 

 numbers of the Annals and Magazine of Natural History, 

 from the pen of Dr. Hincks, and an article by Mr. Busk on 

 Kinetoskia,-f in Quarterly Journal of Microscopical Science 

 for January of the present year. 



The five species described below comprise an interesting 

 addition to the genus Alysidium; a pretty Bicellaria of 

 small dimensions ; a very interesting form, that must be 

 placed in Busk's family of Fargtminariam:, but requiring 

 a new genus to be erected for it ; the fourth is a Vincularia 

 that deserves special notice, owing to recent remarks by 

 Dr. Hincks on his genus Steganoj)orella\ and on the genus 

 Vincularia ;§ and the fifth is a curious form "placed in the 

 genus Horner a, not without some hesitation. 



* South Indian Ocean. 



f The Kinetoshia cyathus there described seems to be very closely allied to 

 Bugula robust a, Macgillivray, common in these seas ; the cells are almost 

 identical in the two species, but the stems are different. 



% Brit. Mar. Polyzoa, p. 177. Ann. and Mag. Nat. Hist., Vol. VI., No. 36, 

 Nov., 1880. 



§ Ibid, Vol. VII., No. 38, Feb., 1881. 



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