APPENDIX. 



A few corrections of nomenclature and descriptions of ob- 

 scure forms are inserted here to complete the account of 

 snails described as " Achatina. " 



OLEACINID^E. 



SPIRAXIS BLANDIANUS Pils. New name for Spiraxis blandi 

 Crosse & Fischer, (Journ. de Conch. 1877, p. 271; Miss. Sci. 

 Mex., Moll., i, p. 616; Manual I, p. 52, XIX, p. 27), not Spiraxis 

 blandi (Crosse), described as Ravenia c., Manual XIX, 19, 20. 



VARICELLA DISSIMILIS Pilsbry. Vol. XIX, p. 105, pi. 17, f . 10, 11. 



New name for Achatina similis C. B. Ad. 1850, not A. similis 

 Boissy, 1848. 



The specimen figured and described (XIX, 105) by me 

 becomes the type of this species. 



VARICELLA DISSIMILIS LONGIOR Pils., new name. V. similis 

 longa Pils. (Man. Conch. XIX, p. 106), being a homonym of 

 V. costulata longa (t. c. p. 68), may be changed to Varicella 

 dissimilis longior. 



VARICELLA SIMILARIS SLOANEANA Pils. 



New name for V. s. mandevillensis Pils., (XIX, p. 107), 

 preoccupied on p. 70 of same volume. 



STREPTOSTYLA LIMNEIFORMIS CHIAPENSIS Pils. Vol. XIX, p. 159. 



New name for Spiraxis parvula Pfr. 1856, not of Chitty, 

 1853. 



EUGLANDINA FUSiFORMis Pfr. Achatina /"., Pfr. P. Z. S. 1845, 

 p. 75 ; Monogr. ii, 292 ; Man. Conch. XIX, 188, is a homonym 

 of Achatina lubrica var. fusiformis Picard, 1840. See Vol. 

 XIX, p. 320. The Mexican species should probably stand as 

 E. binneyana. 



(Ill) 



