Volume 21. Number 8. 
57 
August, 1919. Whole Number 172. 
THE WEST AMERICAN SCIENTIST 
is KS #75 2. 500205 050505050505 05 05020, 05 010702050505 05050502 0s 029202050707 05 0595050205050. o: 
A Popular Review and Record for the Pacific Coast. 
The oldest scientific magazine west of the Mis 
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21:0755 Genus Dosinia Scopoli, 
Shell orbicular, 
ligament sunk; 
ue 
compressed, concentrically striated, pale, 
lunule deep; hinge like Cytherea; margin even; 
pallial sinus deep, angular, ascending. 
21:0756 Dosinia pondercsa Gray, 1838. 137. 
San Diego, Cal., to 
Payta, Peru. 
21:0757 Acenthina lapilloides Conr. 
Based on Monoceros lapilloides Conr. 
21:0758 Acanthina lugubris 
Based on 
Sby. 
Monroceros lububre Sby. 
21:0759 Acanthina spivata Biainv. 
based on Monoceros engonatum Var. spiriatum. 
21:0760 Acanthechiton diegensis Pils. 
Is Acanthochochitona avicula (Cpr.). 
Acila lyatli Baird. 
Is Nuecula castrensis. 
21:0761 
21:0762 
21:0763 
21:0764 
21:0765 
21:0766 
21:0767 
21:0768 
21:0769 
21:0770 
Acmaen 
Acmaea 
Acmaeca 
feema2ea 
Acme LCA 
Acmaea 
Siete ea 
4S CMwAea 
Acma2e2 
patina pintadina Gould. 
patina scutum Esch. 
peita elevata. 
puting nettailme. 
a patina ochracea Dall. 
neita cassis Esch. 
pelia hybrida Hemphill. 
pelia nacelicides Dall. 
scabra limetula Cpr. 
Is A. limatula. 
212 OTF 
120772 
mt OT73 
at: OTi14 
21°:07T75 
Acimeea 
Aemaea 
Alexia setifer Cooper. 
Alvania 
scabra morchii Dall. 
scabra picta Hemphill. 
Is A. myosotis. 
purpurea Dail. 
Amalthea antiquata L. Is Hipponyx a. 
