ERRATA AND CORRIGENDA. 



p. 4, 6th line from ])ottom read Lebruii for Leborne. 



P. 80, read Pclccypoda for Pelycypoda. 



P. 86, interchange figures 2 and 3, and reverse position of figure 4 



P. 87, line 25, read from for form. 



P. 119, line 26, read Jiiediajiior medium. 



P. 151, bottom line, read Actinoptera for Actinopteria. 



Pp. 151 and 159, read Ascodiciyon for Ascodictyum. 



Pp. 151 and 164, read I), sculptilis for sculptis. 



P. 152, read PriniHia for Primita. 



P. 152, read Cycloiiema Jiaviiltonia for C. hamiltonensis. 



P. 157, read C. Av/z^/^/r/rt/rt: for tenuistriatus. 



P. 159, line 16, read AittodetJis for Autodetes. 



P. 164, 4th line from bottom, read cboraccuni for eborasceus. 



P. 168, line 6, read Chonctcs for Chonetus. 



P. 169, line 9, read Pclecypoda for Pelycypoda. 



P. 169, line 17, read Niicitlites iox Nuculitus. 



P. 172, read carinatum for carinatus. 



P. 173, read 7"/^^'//.? for Thetys. 



P. 174, 9th line from bottom, read ornata for ornatas. 



P. 189, line 2, read Acant/iosoiiia for acanthsoma. 



P. 328, line 26, p. 329 ct seq., read ReDwplcuridcs for Remipleurides. 



P. 333, line I, read iS62{ox 1861. 



^' 333- ^'^st line, p. 375 et scq., read Ruedeinann for Ruederman. 



Pp. 336 and 337, read A>-chi)iacella propria for A. proprius. 



P. 342, lines 9, 21 and 31, omit species. 



P. 367, 5th line from bottom, insert {Bi/iings) after Pseudospha^rexochus 



vulcanus. 

 P. 371, 6th line from bottom, e/seq., icea.d Sp/itrrocoryp/ie (or Sphsevocorphe. 

 P. 373, read Apollo for Opollo. 

 P. 379, line 20, read Kittatiuv for Kittating. 

 P. 381, 8th line from bottom, read Harpina ottawaensis for Harpina 



oitowaensis. 

 P. 418, 25th line, read Cleiothyris for Cleiothyrus. 

 P. 423, read etto/np/ialtis for euomophalus. 

 P. 497, 9th line, read pri/iioides for primoides. 

 P. 534, vea.d plauta ior plaulus. 



