INDEX TO TECTIBRANCHS. 



NOTE The names of valid species and varieties are printed in 

 Roman type ; of genera and other groups in SMALL CAPITALS ; of 

 synonyms in Italic. 



Acardo Lam., . . .176 



AceraAuct., . . . 230 



Achates Dh. (Dorid.), . 239 



ACLESIA Rang, . . 135, 144 



ACROSTEMMA Cossm., . 233 



ACTvEONIDJE, . . . 229 



ACTION Montf., . . 229 

 Acutangula (Philine) Ad., . 4 

 Adamsi Ang. (Chelidonura), 36 

 Adamsi Pils. (Tethys), . 114 

 ADEL ACTION Cossm., . 230 

 Adeline Dall (Aglaja), . 53 

 Adella Dall (Dorid. j, . 54 

 ^Enigmaticus Bgh. (Navar- 



chus), ... 58 



^Equorea Heilpr. (Aplysia), 77 

 AGLAJID^:, . . vi, 43 

 AGLAJA Ren., . 43, 44, 239 

 AKERA, . . . .230 

 Alata Forbes (Bull^a), . 17 

 Alatus Dall (Scaph.), . 234 

 Alba Cuv. (Aplysia), . 73 

 Alba Marsh. (Pleurobr.), . 194 

 AlbopunctataDh. (Aphysia), 71 

 ALICULA Eichwald, . . 237 

 Alicula Ehrenb., . . 237 

 ALICULASTRUM Pils., . 237 

 Amabilis Verr. (Philine), . 25 

 Amati (Clio) Delle Chiaje, . 40 

 Americana Dall (Tylodina), 188 

 Americanus V e r. (Gym- 



notoplax), . . .210 

 Americanus Ver. (Pleuro- 



branchus), . . .210 

 Amygdala marina Plane., . 11 



ANASPIDEA, . . .59 

 Andamanicus Sm. (Scaph.), 235 

 Angasi Crosse (Philine), . 8 

 Angasi Sm. (Pleurobr.), . 205 

 Angasi Sowb. (Aplysia), . 101 

 Angulata Jeffr. (Philine), . 17 

 Anguilla Cum. (Aplysia), . 112 

 Angustata Biv. (Bulla), 13, 14 

 Antillarum Mch. (Oxynoe), 164 

 Aperta L. (Philine), . . 10 

 Aplisiformis Fer. (Action.), 230 

 Aplysia Liune, . . 65 



Aplysiceforme Chiaje (Dorid- 



iwii), . . 46 



Aplysiella Fisch., . . 12S 

 APLYSIID^H, . . .59 

 APLYSIIN^E Pils., . . 65 

 Areola Pse. (Aclesia), . 147 

 Areolatus Mch. (Pleurobr.), 199 

 Argentata (Philine) Old., . 4 

 Argentatus Lch. (Oscan.), . 215 

 Argus Riipp. (Aplysia), .110 

 Ascifera Rang. (Dolabri- 



fera), ... 124 



ASCOGLOSSA Bgh. . .161 

 Atlantica Gray (Tylo.), . 186 

 ATYS Montf., . . .236 

 Aurantiacus Risso (Pleuro- 

 br.), . . . .195 

 Aurantium Pse. (Operc.), .181 



Bakaricus Lar. (Pleurobr.), 224 

 Bermudense Mch. (Um- 

 brella), . 100, 178, 180 

 BEJ ,-TVLLA Blv., . . 192 



(253) 



