OMISSION. 



PoTERiocRiNUS NETTLER0THANU8, S. A. Miller, 1882, JouF. Cin. Soc. Nat. Hist., 

 vol. 5, Up. Held. Gr. [Ety. proper name.] 



— NOTE. — 



The author has been informed that Mr. J. M. Clarke has described a new genus 

 and three new species of Phillocarida3, which will probably appear in the Am. Jour. 

 Sci. & Arts, for February, 1883, viz: Dipterocaris pescervae, D. pennidaedali, and 

 D. procne— all from the Chemung. 



, Prof. E. W. Claypole says there is little or no classic ground for printing ce in the 

 beginning of the second part of a compound word, such as rugcestriatus. It should be 

 rw/istriatus. An exception occurs when the first part of the word is merely a prefix, 

 as in suhcequalis. That nehraskensis should be written instead of nebrascensis , as there 

 is no ground for using the c instead of k. And that the generic name Chariocephalus 

 should be written Charitocephalus. 



Mr. Henry N'ettleroth has described, under the title of '' Fossil MoUusca of 

 Kentucky," for vol. 1 of that State, which is now in press, Aviculcfpecten cancellatus, 

 A. concentricus, Paracyclas octerlonyi, Tellinomya striata, Modiomorpha charlestown- 

 ensis, Millerella (n. gen.) jonesi, Spirifera euruteines, var. erecta, S. euruteines, var. 

 elongata, S. byrnesi, S. hobbsi, S, davisi, S. mcconathyi, Rhynchonella gainesi, Eu- 

 omphalus protteri, Cyclonema clarki, Cyrtoceras hydraulicum, Murchisonia tubercu- 

 ata, Platyceras nodulosum, P. elongatum, P. compressum, and Orthis goodwini, from 

 the Devonian formation ; and Spirifera knotti, Pentamerella schwartzi, Rhynchonella 

 compressa, Pentamerus foggi, P. trigonalis, P. louisvillensis, and Stricklandia louis- 

 villensis, from the Niagara Group; and Cypricardites halli, from the Hudson River 

 Group. 



