INDEX, VOLUMES II TO XVII. 



311 



Dentalium (Bull. 1'Acad. Imp. Sci., St. Petersb. [5], vii, 1897, p. 

 214). 



DENTALIUM ALTERNANS Mull. (p. 224) is probably the same as 

 D. alternans Ryck. (p. 220). See Holzapfel, Palseontograpbica, 

 xxxiv, p. 178. As the name is preoccupied, D. confusum S. & P. 

 will replace it, D. muellerianum becoming a synonym. 



CADULUS OBRUTUS Conrad (p. 238). Add reference : Gadus 

 obrutus Conr., Amer. Journ. Conch., V, p. 227. 



Index to Families, Genera and Sub- 

 genera, Volumes II to XVII. 



[NOTE. The names of genera are printed in Roman type ; of 

 groups higher in rank in SMALL CAPITALS ; of synonyms in Italic.'] 



Abretia Ads., vii, 

 Acanthina Fisch., ii, . 



Acanthochcetes Auct., xv, . 



Acanthochetes Leach, xv, . 



Acanthochistes Costa, xv, . 



Acanthochites Risso, xv, . 



ACANTHOCHITID^E Pils., XV, 



Acanthochiton Herrm., xv, . 

 Acanthopleura Gray, xiv, . 

 Acardo Lam., xvi, 

 Acera Auct., xv, 

 Acera Cuv., xvi, 

 Aceras Locard, xv, . 

 Achates Gistel, ix, 

 Acicularia Monts., viii, 

 Aciculina Ads., iv, . 6, 

 Aciculina Dh., viii, . 

 Acinopsis Monts., ix, 319, 

 Acinus Monts., ix, 

 Aciona Leach, ix, 

 AcirsaM6rch,ix, . 50, 

 Aclesia Gray, xvi, 

 Aclesia Rang, xvi, . 135, 

 Aclisina de Kon., ix, . 



52, 



7, 



5 Aclis Love"n,ix, 

 219 Acmsea Esch., xiii, 



7 ACMTEID^E, xiii, 



8 Acme H. & A. Ad., ix, 



8 Acrilla Ads., ix, .51 



7 Acroculia Phill., viii, 



6 Acrostemma Cossm., xvi, 



8 Acrybia Ads., viii, 

 213 Actseonema Conr., ix, 

 176 ACT^ONID^E Fisch., xv, 

 376 Actceonidea Gabb, xv, 



44 Actseonina Orb., xv, 



376 Actaeon Montf., xv, 



34 147, xvi, 



259 Acteeopyramis Fisch., viii, 



38 297, 312 



319 Acteon Montf., xv, . .147 



365 Actita F. de Waldh., viii, . 105 



319 Actonia Monts., ix, . 319, 368 



50 Acus Humph., vii, . . 6 



80 Adamsia Dkr., ii, . . 156 



114 Addisonia Ball, xii, . . 138 



144 ADDISONIID^E, xii, . . 138 



53 Adelactseon Cossm., xvi, . 230 



86 

 166 

 5 



316 

 83 

 107 

 233 

 8 



53 

 135 

 . 166 

 136, 172 

 136, 



229 



