Art. XIV. — On a neiu name "Vittaticella," for the Poly- 

 zoan genus Calojjorella, McG. 



By C. M. MAPLESTONE. 



[Bead 13th December, 1900]. 



A new name is necessary for Dr. MacGillivray's genus Ca/o- 

 porella (of the family Catenicellidae), as Ulrich had previously 

 described a genus of Palaeozoic Polyzoa under the name of 

 Calloporella; the difference in the spelling of these two names 

 being so slight, two Is in the one and one / in the other, and the 

 derivation and pronunciation of the words being the same they 

 are practically the same word, so that I consider Dr. MacGilliv- 

 ray's name cannot stand. 



Calloporella was described by Ulrich in 1882, in a paper on 

 the American Palaeozoic Bryozoa, published in the Journal of 

 the Cincinnati (Ohio, U.S.A.) Society of Natural History, Vol. 

 v., page 154. Dr. MacGillivray's genus was not described until 

 1895, and I propose the name " Vittatkella" for it, as the genus 

 was founded for the reception of those forms of the original 

 genus '■^Catenicella" which Busk separated as ^'■Vitfatae" in 

 contradistinction to the " Fenestratae " and " Carinatae " divi- 

 sions of the genus. 



I am indebted to Mr. J. M. Nickles of Cincinnati, Ohio, 

 U.S.A., for giving me information which enabled me to trace 

 Ulrich's genus. 



The following are the species affected by the change of 

 name. : — 



Yittaticella hannafordi (McG. sp.) 



Caloporella hannafordi, McG., T.R.S.V., vol. iv., 1895, 



p. 19. 

 Catenicella hannafordi, McG., P.Z.V., 24. 

 Vittaticella insignis (McG. sp.) 



Caloporella insignis, McG., T.R.S.Y., vol. iv., p. 18. 

 Vittaticella praetenuis (McG. sp.) 



Caloporella praetenuis, McG., T.R.S.V., vol. iv., p. 20. 



