218 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Fissurellidae. 
Puncturella (Cranopsis) expansa Dall. 
Puncturella falklandica A. Adams. 
Zeidora flabellum Dall. 
ISOPLEURA. 
POLYPLACOPHORA 
Lepidopleuridae. 
Lepidopleurus halistreptus Dall. 
Lepidopleurus luridus Dall. 
Lepidopleurus opacus Dall. 
Lepidopieurus incongruus Dall. 
Lepidopleurus farallonis Dall. 
Mopatidae. 
Placiphorella blainvillei Broderip. 
SCAPHOPODA. 
Dentaliidae. 
Dentalium aequatorium Pilsbry and Sharp. 
Dentalium megathyris Dall. 
Dentalium ceras Watson. 
Dentalium peruvianum Dall. 
Dentalium agassizii Pilsbry and Sharp. 
Dentalium brevicornu Pilsbry and Sharp. 
Dentalium dalli Pilsbry and Sharp. 
Cadulus striatus Dall. 
Cadulus albicomatus Dall. 
Cadulus californicus Pilsbry and Sharp. 
Cadulus platystoma Pilsbry and Sharp. 
Cadulus peruvianus Dall. 
Cadulus panamensis Pilsbry and Sharp. 
Cadulus (Polyschides) dalli Pilsbry and Sharp. 
PELECYPODA. 
Solenomyacidae, 
Solemya (Acharax) agassizii Dall. 
Solemya (Acharax) patagonica Smith. 
