PATAGONIAN EXPEDITIONS I ZOOLOGY. 



EXPLANATION OF PLATE XLVI.A. 



PAGE 



Figs, i, 2, 3. LYMN^A DIAPHANA INELEGANS Pils. Form from Swan Lake . 528 



Figs. 4, 40. LYMN^A ANDEANA Pils. Type. Near base of the Andes . 530 



Fig 3 - 5> 5 a - LITTORIDINA SUBLINEATA Pils. Type 556 



Figs. 6, 7, ;. MUSCULIUM ARGENTINUM (Orb.) Montevideo. . . . 605 



Fig. 8. MUSCULIUM PATAGONICUM Pils. Type 604 



Fig. 9. PISIDIUM PATAGONICUM zoNiFER Pils. Type. .... 608 



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