ERRATA. 



Page 199, in explanation of woodcut (fig. 83), for " wyvilii" read "wyvillii." 



Page 436, line 7, for " Chcetoceras" read " Chcetoceros." 



Pages 470 and 471, brackets round Taonius instead of Procalistes in the explanation of woodcuts. 



Page 487, line 9 from bottom, for "fig. 141 " read "fig. 176." 



Page 496, line 15 from bottom, for " Vitu" read "Viti.' 



Page 521, line 15, for " Aphyrwnus" read " Aphyonux." 



Page 541, line 7, for "strata" read " strota." 



