Shell long, cylindrical, slightly tapering, with acuminated fundus or with a clear spine or projection


Difflugia acuminata
Difflugia venusta
Difflugia scalpellum
Difflugia praestans
Difflugia smilion
Difflugia giganteacuminata
Difflugia curvicaulis
Difflugia acutissima
Difflugia microclaviformis
Difflugia mammilaris
Difflugia n.sp.
Difflugia nodosa
Difflugia spec



Shell piriform, variable, without or with one to three horns


Difflugia elegans
Difflugia bacillariarum
Difflugia spec.
Difflugia varians
Difflugia leidyi



Test oblong, ovoid elongated, with neck and smooth rounded fundus


Difflugia oblonga
Difflugia lanceolata
Difflugia yorkui
Difflugia bacillifera
Difflugia bryophila
Difflugia lacustris
Difflugia lacustris
Difflugia lacustris



Test pyriform, with neck and smooth rounded fundus


Difflugia pyriformis
Difflugia gigantea
Difflugia capreolata
Difflugia acutissima
Difflugia spec.
Difflugia pulex
Difflugia cylindrus
Difflugia cylindrus



Test ovoid or broad ovoid


Difflugia binucleata
Difflugia amphora
Difflugia lobostoma
Difflugia gramen
Difflugia lithophila
Difflugia tuberculata
Difflugia brevicolla
Difflugia rubescens



Test more or less globular, with or without spines


Difflugia geosphaerica
Difflugia urceolata
Difflugia lithoplites
Difflugia corona
Difflugia globulosa
Difflugia lebes



Test compressed


Difflugia lucida
Difflugia biconcava
Difflugia bidens


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Difflugia polliciformis

Difflugia polliciformis, after Van Oye, 1952 Difflugia polliciformis  Van Oye, 1958 Diagnosis: Test more or less thumb-shaped, without clear neck, chitinoid, mainly covered with very

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Difflugia australis

D. australis after Playfair, 1917 Difflugia australis (Playfair, 1917) Gauthier-Lièvre et Thomas, 1958 Syn.: Difflugia bacillariarum var. australis Playfair 1917 Diagnosis: Test broadly ovate, with

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Difflugia baradlana

D. baradlana after Varga, 1963 Difflugia baradlana Varga, 1963 Diagnosis: Test ovoid with a very small neck which is about 1/4 of the test length.

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Difflugia angelica

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Difflugia algaephila

D. algaephila after Decloitre, 1977 (l) and Chardez (1980) Difflugia algaephila Decloitre, 1977 Diagnosis: Test ovoid, neatly pointed, with oblique round pseudostome. Dimensions: Length 73-75

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