† Spirillum α, β, and γ Dobell - The Biotic Associations of Cockroaches - 32 - Louis M. Roth; Edwin R. Willis

† Spirillum periplaneticum Kunstler and Gineste Spirillum sp.

† Spirillum α, β, and γ Dobell

Habitat.—Blatta orientalis, England (Dobell, 1911, 1912): From hind gut.