INDEX TO POLYPLACOPHORA. 



NOTE. The names of genera and other groups are printed in 

 SMALL CAPITALS ; of species known or supposed to be valid 

 Roman type ; the names of all synonyms in Italic. 



in 



Abyssorum Sars. xiv, 

 Acanthochcetes Auct. xv, 

 Acanthochistes Costa, xv, 



ACANTHOCHITES RlSO, XV, 

 ACANTHOCHITIDJE Pils. XV, 



Acanthochitona Gray, xiv, . 

 Acanthockiton Herrm. xv, . 



ACANTHOPLEURA G U i 1 d. 



xiv, 



Achates Gld. xv, 

 Achatinus Brown, xiv, . 

 Acrior Cpr. xiv. 

 Aculeatus L. xiv, . 

 Aculeatus live, xiv, . 

 Acutiliratus Rv. xiv, . 

 Acutirostratus Rv. xv, 

 Acutus Cpr. xiv, 

 A.damsii Cpr. xiv, 

 Adansoni Roch. xv, . 

 Adelaidensis Rv. xiv, 

 Adenensis Smith, xiv, 

 Adriella Thiele, xv, . 

 JEneus Risso. xv, 

 ./Ereus Rv. xiv, 

 Affinis Issel xiv, 

 Afra Roch. xv, 

 Africana Roch. xiv, . 

 Ahnni Roch. xv, 

 Alatus Sowb. xiv, 

 Albidus Blv. xv, 

 Albilineatus Rv. xiv, . 

 Albolineatus Sowb. xiv, 

 Albrechti Schr. xiv, 

 Albus Barb, xiv, 

 Albus L. xiv, 70 ; xv, 



18 

 8 

 8 



7,8 

 6 



150 

 8 



213 

 . 18 

 . 49 

 . 61 

 . 221 

 . 219 

 . 65 

 . 33 

 . 297 

 . Ill 

 . 13 

 . 136 

 . 276 

 62, 63 

 . 10 

 . 179 

 . 181 

 . 96 

 . 181 

 . 112 

 . 60 

 . 105 

 . 160 

 . 160 

 . 147 

 . 256 

 64 



Albus Pult. xiv, 

 Aleutica Dall, xv, 

 Algesirensis Cap. xv, . 

 Alphonsinse Roch. xv, 

 Alternatus Sowb. xiv, 

 Altior Cpr. xv, 

 Altus Gray, xiv, 

 Alveolatum Roch. xv, 

 Alveolus Sars xiv, 

 Amaurochiton Th. xv, 

 Ametrogephyrus Midd. xv, 

 Amicorum Baird. xiv, 

 AMICULA Gray, xv, . 

 Amiculatus Pall, xv, . 

 Amieulatus Rv. xv, 

 Amiculatus Sowb. xv, 

 AMPHITOMURA Pils. xiv, 

 Ampullaceus Pils. xv, 

 Anaglyptus Roch. xv, 

 Angasi Ad. & Ang. xiv, 

 ANGASIA Cpr. xiv, 

 Angulatus Spengl. xv, 

 Angusticostatus Q. & 



xiv, 



Anisochiton Fisch. xiv, 

 Anthochiton Th. xv, . 

 Antiquus Rve. xiv, . 

 Apicalis Pils. xv, 

 Apiculata Say, xiv, . 

 Apparata Cpr. xiv, . 

 Aquatilis Rv. xiv, 

 Arbutum Rv. xiv, 

 Arcticus Sars, xiv, 

 Arenatus ISutt. xiv, . 

 Argyrosticta Phil, xiv, 



G, 



4 

 65 



62 



100 



281 



45 



60 



96 



6,4 



88 



52 



249 



42 



46 



44 



49 



230 



24 



97 



238 



286 



72 



187 



xxi 



88 



274 



50 



35 



38 



169 



139 



5 



295 

 204 



122 



