ri. \\irii< 



ovotui Hi PTCW, Man. N. X. M"1I., p. 177 -1880.) 

 This species differs from / a in contour Bivalve 



the widest, tin- .-ixth mueh n:irrnw.-r. whilst in t 

 species the fifth and sixth valves are as wide as tin- fourth : i 

 <\-er the side teeth of ovafa do IK.I ieen to l)c thickened at the edges 

 of the slits as they an- in f///vv//'./. The specimen described and 

 figured was sent by Professor Iluttoii. 





ERRATA. 



Page 75, dele the word ISCHNOCHITON, in 8th line. 



Page 97, 1. CURTISIANUS is not an Ischnochiton but a Liolophura, 



see p. 242. 



Page 110, For "7. regulatw" read " J. rugulatiu." 

 Page 133, " I. PUSIO" is probably not an Ischnochiton, but a true 



Chiton, and it is likely to prove identical with Chiton 



murrayi Haddon, described on p. 161. 



Page 151, line 11, for " indentification" read "identification." 

 Page 182, last line, remove " C. scytoderma " from the synonymy 



of C. rubicundus. 

 Page 191. The authority for C. SULCATUS should be " Wood," not 



" Sowerby." 



Page 204, line 14, for "indentification" read "identification." 

 Page 206, fifth line from bottom ; the reference to Savijrny should 



read " t. 3, f. 6, 1-2," instead of" f. 4." 

 Page 329. " Chiton (Acanthopleura') piceolus" Shuttlew., included 



under Acanthopleura granulata as a doubtful synonym, 



is probably referable to the genus NUTTALLINA, s. g. 



Middendorffia, and it should be compared with JV. 



rlnerea Poli, p. 283. 



NOTE. 



The Index to Chitons will accompany the conclusion of the mono- 

 graph, to be contained in the next part of the MANUAL. 



