VI 



604, 8. Erase "identical with/* "No other name has been given it, 

 though recognized by Schimper and others as a good species. Coal Flora? 

 pp. 264, 265." (Lacoe.) 



606, 5. Whitens reference is to P. injiata^ New by. inedited. (Lacoe.) — 7. 

 Bead "? (Brongt) Lesq. in Coal Flora." (Lacoe.^) 



607, 2. Read muricata. — 9. Synonym of Pseudopecopteris nervosa, 

 Lesq, Coal Flora, p. 197, pi. 32, figs. 1-3. (Lacoe.) 



608, 9. Name preoccupied by a palaeozoic species of Fontaine and White, 

 in Report PP, p. 71, pi. 20. (Lacoe.) 



609, 3. Insert : " but not JV. serrulata, Daws. Foss. Plants Dev. <fe U. Sil* 

 form. Cfen. (1871) p. 49, pi. 18, f. 213 ; Q. J. G. S. 18, pi. 15, f. 35. (Lacoe.) 



610, 2. For Alethopteris read Pecopteris erosa, (Lacoe.) — 18. P. trun- 

 cata. Name changed to P. quadratifolla, when published. Coal Flora, p- 

 234, and MS. Index of Species. (Lacoe.) 



614, bottom. "Resid Lower Oambrian, L, C. (Matthew.) 



616, 1, The figure belongs to HalFs genus Gypidia [Gypidula, S. A. M.] 

 (Whitfield.) — Thus, p. 618, P. occidentalism is now Gypldula occidentalis, 

 Hall. Geol. Iowa, I, ii, p. 514. 



617, 8. At Richmond, Ind,, individual shells occur as wide as they are 

 long and of relatively small convexity. (Collett.) Very abundant in the 

 Niagara of southern Ohio. (J. F. James.) 



618, 3. Guelphf top member of Niagara. Reports of Orton, Winchell, 

 etc. (J. F. J.) 



619, 22. Read conoideus. 



620, 2. Insert Philadelphia. — 17. Read radial. -— 18. Read folds. — Fig- 

 ures 2 b, c, are Troostocrinus woodmani, M. & W. Geol. Illinois, Vol. 5. 

 (Whitfield.) — P. obesus, in the west, occurs only in the KasJcaskia ( Upper 

 Chester^ limestone ; never in the overlying Millsione griU (Collett.) 



622, 1. Read Qodonites, —1 . Read subsyliudricus. (E. W. C.) — - 12. 

 Rogers' figure is either P. sulcatus, or P. godoni. (Whitfield.) P. godonL 

 (Collett.) 



623, 1. Fig. 4 is of Oeraterpeton punctolineatam, [lineopunctatum, 

 S. A. M.] Cope. Pal. Ohio, Vol. 1875, p. 372. XIIL (Orton.) 



625, 7. Read alleghaniensis. 



626. Read distortum, pseudosagittatum, spatulatum, striatum. — 

 31. Readhexapod. (E. W. C.) 



627,1. Read meieri. (Scudder.) — The figures for P. canadensis and 

 caliculay are not Petraia^ but Zaphrentis, (Whitfield.) S. A. Miller and 

 others style them Streptelasma. (Collett.) 



629, 5, etc. "Doubtful if these are anything more than a variety of Phacops 

 rana. E. W. C. — 39. Read crenulations. 



631,16. Read/ect*nda. — 30. Reoid HenzelV s, 



632, 10. For Worthen, read Whitfield. —20. Read Phillipsastreea. — 

 31. Read insignis. 



633, 10. Read maccoyi. ~ Read Mo. for Miss. — - 22. Read ( Griffithides ?) 

 and the same on page 634, line 4. 



635,8. The G.gurem Oestocephalusremex^ Cope. (Orton.)— 13. Read ten- 

 dinous. — 14. Read vertebral. Also 486. 



636, 15, 16, 17. Erase all after "See." (E. W. C.) —34. Read P. ovata. 



637, 3. Read hamil teniae. — 15. Insert Pholidops ovata, found at 

 Clark^s mills, Perry Co., Pa. (E. W. C.) 



638, 5, Read Phragmostoma natator. This gasteropod shell is from the 



