Smithsonian miscellaneous collections . d which thereforecannot be enumerated here. 194 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 48 EXPLANATION OF PLATESPlate XLIIIFigs. 1-4. Hendersonia palmeri Dall, n. g. et sp. Fig. i, view from below;2, profile; 3, specimen with the whorl broken away to show internalspiral lamina; 4, view from above; all figures magnified two and one-? third diameters. See page 187. Plate XLIV Fig. I. Xanthonyx potosiana Dall, n. sp., from above, magnified. See page 2. The same in profile. Fig. 3. Schasicheila palmeri Dall, n. sp., magnified. See page
Smithsonian miscellaneous collections . d which thereforecannot be enumerated here. 194 SMITHSONIAN MISCELLANEOUS COLLECTIONS [vOL. 48 EXPLANATION OF PLATESPlate XLIIIFigs. 1-4. Hendersonia palmeri Dall, n. g. et sp. Fig. i, view from below;2, profile; 3, specimen with the whorl broken away to show internalspiral lamina; 4, view from above; all figures magnified two and one-? third diameters. See page 187. Plate XLIV Fig. I. Xanthonyx potosiana Dall, n. sp., from above, magnified. See page 2. The same in profile. Fig. 3. Schasicheila palmeri Dall, n. sp., magnified. See page 4. Streptostyla potosiana Dall, n. sp., nat. size. See page 5. Schasicheila palmeri Dall, from above, magnified. This specimen has the sinus at the aperture less developed than usual in adults. See page 6. Sphariiim mexicanum Dall, n. sp., magnified about 5^4 diameters. See page 7. Xanthonyx potosiana Dall, n. sp., from below, magnified. See page 190. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 48, PL. XLIII.
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