EREATA. 



Page 118, line 42, delete "structure." 



149, Fig. 105, for " central " read " ventral." 

 175, Pig. 137, for " suboesopliageal " read " ventral." 

 274, line 19, insert , after dorsaUy. 

 283, Une 1, fm " Arachnidas " read " Arachnida." 

 J 289, Fig. 237. /or "foot" read "pedal ganglion.' 

 314, Une 18, for " Dreisaena " read " Dreisaensia." 

 317, Fig. 263, far " syphon " read " siphunole." 

 351, Fig. 291, /or "/ collLcle" read "follicle." 

 355, Fig 293, far " gUl-aac " read " pharynx." 

 388, line 37, and page 390, lines 29, 32, for " Maokrel read 



" Mackerel." 

 478, Fig. 390, for " oc " read " x." 

 600, line 36, for " metatarsals " read " metacarpals." 



N.B. — The term Saptatores, used p. 452, is interchangeable with the terms 

 Bapaces or Aocipitres, used p. 460. 



