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Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.22

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.20

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.14

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.19

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.18

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.21

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.10

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.15

Manual of conchology, structural and systematic : with illustrations of the species. by George W. Tryon, Jr.

Ser.2, v.11