The Francis Walker types of Trichoptera in the British museum,
Betten, Cornelius, 1877-
The Francis Walker types of Trichoptera in the British museum, re-described and figured by Cornelius Betten ... and Martin E. Mosely. - London, Printed by order of the Trustees of the British museum, 1940. - ix, 248 p. front. (port.) illus. 26 cm.
At head of title: British museum (Natural history)
Includes bibliographies.
agr41000229
Walker, Francis, 1809-1874.
Caddisflies.
QL517.1 / .B42
The Francis Walker types of Trichoptera in the British museum, re-described and figured by Cornelius Betten ... and Martin E. Mosely. - London, Printed by order of the Trustees of the British museum, 1940. - ix, 248 p. front. (port.) illus. 26 cm.
At head of title: British museum (Natural history)
Includes bibliographies.
agr41000229
Walker, Francis, 1809-1874.
Caddisflies.
QL517.1 / .B42