309 



ON TV RBI 8 (SURCULA) MAG ELLA, NOM. NOV. FOR 

 T. MAGILENTA, MELV., NOM. PR^OCC. 



By Dr. J. Cosmo Melvill, F.L.S. 



Read 11th May, 1923. 



I AM obliged to Mr. Artliur Wrigley for pointing out that the name 

 macilenta lately bestowed by me {antea, p. 168) upon a small attenuate 

 recent ppecies, had already been given to a Tertiary fossil species, 

 as long ago as 1766/ by Dr. Solander, this originally being described 

 by him as a Murex, and ninety years after, in 1856, placed by 

 Mr. F. E. Edwards ^ in its proper position as a member of the 

 Lamarckian genus Pleurotoma, 1799, now superseded by Tunis, 

 Bolten, 1798. 



I have collected this species at Barton myself, and am sorry not 

 to have recollected the name. As Mr. Wrigley well points out, its 

 othar near allies, dentata, Lam., michelini, Desh., textiliosa, Desh., 

 have been assigned by Cossmann,^ to Surcula, and this makes it 

 all the more necessary for the change of name. 



I therefore propose the dimJnutive macella, more appropriate in 

 every way to the new recent species, being a small shell in com- 

 parison with the fossil form. 



1 would further point out that in the same paper [antea, p. 169) 

 " Hegen " (1. 27) should be " Hizen ", and (1. 4 from bottom) " kii " 

 should read " kii ". 



^ Murex macilentus, Sol., in Brander, Fossilia Hantoniensia, 1766, p. 20, pi. ii, 

 fig. 33. 



2 Edwards, Mon. Pal. Soc, 1856, p. 224, pi. xxvi, figs. 13a-6. Also vide 

 Systematic List ofF. E. Edicards' Coll. in Brit. Mus., 1891, by R. BuUen Newton, 

 p. 109. 



^ Cossmann, Icon. Comp. Eoc. Paris, Tom. ii, pis. 50, 51. 



