INDEX TO POLYPLACOPHORA. 



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

 SMALL CAPITALS ; of species known or supposed to be valid in 

 Roman type ; the names of all synonyms in Italic. 



Abyssorum Sars. xiv, .18 



Acanthochcetes Auct. xv, . 8 

 Acanthochistes Costa, xv, 8 



ACANTHOCHITES Risso, xv, 7, 8 



ACANTHOCHITID,E Pils. XV, 6 



Acanthochitona Gray, xiv, . 150 

 Acanthochiton Herrm. xv, . 8 



ACANTHOPLEURA Guild. 



xiv, .... 213 



Achates Gld. xv, . . 18 



Achatinus Brown, xiv, . 49 



Acrior Cpr. xiv. . . 61 



Aculeatus L. xiv, . . 221 



Aculeatus Rve. xiv, . .219 



Acidiliratus Rv. xiv, . . 65 



Acutirostratus Rv. xv, . 33 



AcutuB Cpr. xiv, . . 297 



A.damsii Cpr. xiv, . .111 



Adansoni Roch. xv, . .13 



Adelaidensis Rv. xiv, . 136 



Adenensis Smith, xiv, . 276 



Adriella Thiele, xv, . 62,63 



.Kneus Risso. xv, . .10 



vEreus Rv. xiv, . .179 



Affinis Issel xiv, . . 181 



Afra Rod), xv, . . 96 



J/rioana Roch. xiy, . . 181 



Ah n ni Roch. xv, . .112 



Alatus Sowb. xiv, . .60 



Albidus Blv. xv, . . 105 



Albilineatu.< Rv. xiv, . .160 



Albolineatus Sowb. xiv, . 160 



Albrechti Schr. xiv, . 147 



A/lnu Barb, xiv, . . 256 



Albua L. xiv, 70; xv, . 64 



Albus Pult. xiv, 

 Aleutica Dall, xv, 

 Algesirensis Cap. xv, . 

 Alphoniion 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, . 

 Amiculatus Rv. xv, 

 Amiculatus Sowb. xv, 

 AMPHITOMURA Pils. xiv. 

 Ampullaceus Pils. xv. 

 Anaglyptus Roch. xv. 

 Angasi Ad. & Ang. xiv, 

 ANGASIA Cpr. xiv, 

 Any ulatus Spengl. xv, 

 Angusticostatus Q. & 



xiv, 



Anisochiton Fisch. xiv, 

 AtUhochiton Th. xv. . 

 Antiquus Rve. xiv, . 

 Apiralis Pils. xv, 

 Apiculata Say, xiv, . 

 .\IH>nrntn Cpr. xiv, . 

 Aquatilis Rv. xiv, 

 Arbutum Rv. xiv, 

 Arcticus Sars, xiv, 

 Arenatu* Nutt. 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 



