MUSEUM OF COMPARATIVE ZOOLOGY. 239 
HETEROPODA. +Cylichna vortex Dall. 
+Atlanta Peronii Les. } Diaphana Lotte Bush. 
TECTIBRANCHIATA. 
+Scaphander nobilis V. 
tScaphander puncto-striatus (Migh.) Ad. 
SCAPHOPODA. 
{Dentalium solidum V. ¢Dentalium occidentale Stimp. 
+Dentalium striolatum Stimp. 7Siphodentalium vitreum M., Sars.? 
PTEROPODA. 
+ Cavolina tridentata (Forskal). tCavolina gibbosa (Rang). 
*Cavolina uncinata (Rang). + Diactia trispinosa (Les.). 
+Cavolina longirostris Les. +Clio pyramidata Linné. 
LAMELLIBRANCHIATA. 
*Cuspidaria glacialis (Sars) Dall. Yoldia sapotilla (Gld.) Stimp. 
sCardiomya sp. *Yoldia lucida Loven. 
sMyonera paucistriata Dall. s Yoldia callista Bush. 
*Periploma abyssorum V. (2) sLeda quadrangularis Dall. 
+ Periploma fragilis Totten. {Leda acuta Conrad. 
s Abra equalis Say. *Leda pernula (Miill.). 
t+ Macoma sabulosa (Speng.) Morch. tMalletia obtusa (M. Sars) Morch. 
*Cyprina Islandica (Linné) Lam. sMacrodon asperula Dall. 
*Astarte undata Gld. tArca pectunculoides Sc. 
+ Astarte crenata Gray. {Limopsis minuta (Phil.). 
*Venericardia granulata Say. *Pecten Clintonius Say. 
tLoripes lens V. & S. *Pecten vitreus (Gmel-) Wood. 
s Lucina Blakeana Bush. sAmusium (Propeamusium) Pourtalesia- 
sCryptodon sp. num, var. striatulum Dall. 
tDiplodonta turgida V. & S. tLimea subovata (Jeff.) Mont. 
*Yoldia thraciformis (Storer) Stimp. * Anomia aculeata Mull. 
MOLLUSCOIDEA. 
BRACHIOPODA. 
Terebratulina septentrionalis (Couth.). fAtretia gnomon Jeff. 
