Xll 



108, 9. For Call ipteris read Callipteridium. (K. D. L.) 



108, 21. Triarthrus is a good genus and ought not to be placed under Caly- 



TYiene. It is Ordovician. (G. F. M. ) 



109, 4. Mr. Walcott explains that he never said that this trilobite, C beckii, 



occurred in the Cambrian, and that his Cambrian Conocoryphe 

 trilineata {Ptychoparia trilineata) is a different one. See his 

 paper '^ On the Fauna of the upper Taconic of Emmons," in Amer. 

 Jour. Sc, 1887, page 197. (C. D. W. MS. letter, Jan., 1889,) 



109, 6. Whitfield claims that C. bluinenbachii, is exclusively European : 

 replaced in America by C. niagarensls, Conrad. 



109, 10. ■ Read *' Chart of Fossil Crustacea," by J. W. Salter, and H. Wood- 

 ward, plate 4, fig. 47. The American species is Calymene senaria, 

 Conrad. If Calymene blumenbachii, Brongt. be used, it should 

 be replaced by the older name C. tuberculata, Brunnich. (A. 

 W. V.) 



109, 16. Entomolilhus paradoxus is considered to be not Calymene Blumen- 

 bachii but Paradoxides. (G. F. M. ) which see. 



109, 19. For Heryiicrypterus read IlemAcrypturus. 



110, 5. Callicephala, Green, 1S^2, precedes senariay ISil. (Collet.) Green's 



name ought to be retained. (S. A. M. ) 

 Insert Calymene rostrata from the Clinton formatio7i in Georgia, 



and probably to be found in the Clintoii of Pennsylvania. (A. 



W. V.) 

 Insert Calymene vogdesii, for the same reason. (A. W. V.) 



For Calymene ? read Dalmania callicepliala, Hall. (R. P. W.) 



Probably an error. I have no record of, nor can remember any 



such find. (E. W. C.) 

 For Camarella ambigua read Triplesia. (R. P. W.) 

 For Camarella anteqiiata read Rhynchonella. (R. P. W.) 

 8. Read Lower Cambrian, L. C. (G. F. M. ). 

 For Camarella bisulcata, a Terebratuloid shell (R. P. W.) He 



adds, that Billings's Camarella is a Pentameroid genus. 

 Camarella congesta is an Athyris. (R. P. W.) 

 Camarella extans, is a Triplesia. (R. P. W.) 

 Camarella hemij^licata, is a true Camarella. 

 Camarella nucleus, is a Triplesia (R. P. W.) 

 It does not occur in the Salina formation (E. W. C.) 

 For Rhynchonella, mmra, read Camarophoria wortheni. (R. P. W. ) 

 Dawson describes four species of Cardiocarpon, from Devonian 



strata at St. John, N. B. (G. F. M.) 

 For acutirostris read acutirostre. 

 For Cardiocarpus, read Cardiocarpus, because it is a true Cardio^ 



carpus. (R. D. L.) 

 2, 3, 8, 28, 29. For XJ, read XII. (I. C. W. who puts these shales not 



under but in the Conglomerate.) 

 4. For Carpolitlies bicuspidatus, read Cardiocarpus regularis. 



(L.L.) 

 31. The tw^o figures here given do not represent this. They represent 



Phabdocarpas mamillatus, being copies of fig. 33, 33a, of PI. 85 ; 



whereas fig. 32 represents C. mamillatus and should be inserted 



here, if at all, for the species is a doubtful one and had better be 



abandoned. (R. D. L. — See also Coal Flora p. 816, 817.) 



110, 



40 



111, 



1. 



111, 



14. 



111, 



16. 



111, 



22. 



111, 



26, 



111, 



29. 



112, 



1. 



112, 



11. 



112, 



17. 



112, 



17. 



112, 



10. 



113, 



1. 



113, 



29. 



113, 



31. 



113, 



36. 



114 

 114 

 114 



