OMISSION. 



^^ PoTEEiocRiKUS NETTLBROTHANUS, S. A. Miller, 1882, Jour. Clu. Soc. Kat.Hist., 

 vol. a, Up. Held. Q-r. [Ety. proper name.] 



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

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

 Sci. & Arts, for February, 1883, viz: Diptefocaris pesoervae, D. pennidsedali, and 

 D. procne — all from the Chemung. 



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

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

 rugistriatus. An exception j)ccurs when the first part of the word is merely a prefix, 

 as in subxqualis. That nebraskensls 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 CJiaritoaepJialus. 



Mr. Henry JTettleroth has described, under the title of '• Fossil MoUusca of 

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

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

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

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

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

 ata, Platyceras nodulosum, P. elougatum, P. oompressum, and Orthis goodwini, from 

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

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

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

 Group. 



