AO Director's Report for 1917. 
Leptachatina brevicula Pse. 
Specimens identified from description. 
Leptachatina brevicula var. micra C. 
Holotype and paratypes. 
Leptachatina pachystoma (Pse.). 
Specimens compared with types. 
Leptachatina pachystoma var. turgidula (Pse.). 
Specimens compared with types. 
Leptachatina pachystoma var. cylindrella C. 
Holotype and paratypes. 
Leptachatina pachystoma var. brevis C. 
Holotype and paratypes. 
Leptachatina lucida Pse. 
" Specimens identfied from description. 
Leptachatina striata (Newc.). 
Leptachatina attenuata C. 
Holotype and paratypes. 
Leptachatina balteata Pse. 
Specimens compared with types. 
Leptachatina costulosa Pse. 
Specimens identified from description. 
Leptachatina extensa Pse. 
Specimens identified from description. 
Leptachatina gayi C. 
Holotype. 
Leptachatina leucochila (Gul.). 
Paratype. 
Leptachatina pupoidea C. 
Holotype and paratypes. 
Leptachatina striatula (Gld.). 
Specimens compared with types. 
Leptachatina tenebrosa (Pse.). 
Specimens compared with types. 
Leptachatina (Angulidens) fossilis C. 
Specimens identified by author. 
Leptachatina (Thaanumia) perforata C. 
Holotype and paratypes. 
Leptachatina (Ilikala) fraterna C. 
Holotype and paratypes. 
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