ADDITIONS AND COEEECTIONS 551 



Acmsea grandis, Gray, found at Monterey by Col. Jewett 



and Mr. ffartweg. It appears abundantly in the S. W. 



Mexican Col. but was not found either by Mr. Nuttall or 



M. Reigen. Dele also the corresponding reference under 



Hal. (page200) "Monterey Nutt.)" 



Page 2f3, line 22, add "(Non Eve. Condi. Ic. pi. 16, sp. 38, 



1854.)" 

 Page 207, line 9 from bottom. D'Orbigny's types in the Br. 



Mus. appear exactly conspecific with the California!! shells. 

 Page 208, line 2, for "? + " read " = ." Add to the sentence, 



"teste Heeve : 'never took it,' teste Ouming : Monterey, 



Hartweg, teste Mus. Cuniing." 



After tablet 1020, add "1020 Us, 1 sp. with 6 corners." 

 Page 215, last line, add " Chen. Condi. III. pi. 1, f. 25, a, 6." 



216, last line (text J for "13" read " '13." 

 Pa</e 220, fo'rae 9 /row bottom, add " Chen. Conch. III. pi. 1, 



f. 23, 24" To Me synonyms should be added "? + Fissurella 



mus, Eve. Conch. Ic. pi. 16, f. 120. Hab. ? " 



Page 227, line' 17, to Vol. Voy. Yen. add "pi. 2, f. 3, 3 a-c." 

 To tablet 1095, add "Most of the above possess opercula ; 



tablet 1095* contains 6 opercula loose." 

 Page 229, line 2 from bottom, add "Rev. Soc. Cuv. 1839, p. 361." 



229, last line, add "pi. 2, f. 2, 2 a." 



230, note, line 2, to "Voy. Ven." add "pi. 3 f. 1, 1 a-c." 



232, line I, for "Comp." read "=," from type. 

 To tablet 1125, add "one with operculum." 

 Page 235, Zwfe 3, cfefe "?" from type. 

 To species 329, add the following note* : 



* An extremely similar species, with the colour-markings preserved, is found 

 in the Lias of N. Germany ; Neritina Liasina, Dkr. in Zeit.f. Mai. 1844, p. 188. 



Page 263, line 5, for "has" read "had". 



Tablet 1425. The specimen recorded proves to be somewhat 

 less elongated than that on tablet 1424. Another specimen 

 is therefore substituted, intermediate in shape, finely striated 

 longitudinally, with crowded ridges of growth. 



After tablet 1445, add "1445*, 2 sp. extremely young, of which 

 one- may have developed into C. imbricatuin." 



Tablet 1516, add " + a young shell which may belong to the 

 species." 



