Family Lesquereusiidae Jung, 1942

Diagnosis: Lobose testate amoeba whit shells of endogenous rod-like, nail-shaped or rectangular siliceous plates to which mineral particles may be added.

Remarks: It is questionable whether this family is a monophyletic unit. Lesquereusia shows affinities in shell shape and cement structure with Lagenodifflugia, as does Netzelia with certain Difflugia spp. The rectangular shell plates of Quadrulella, Microquadrula and Pomoriella resemble those of the Paraquadrulidae, although the latter are from calcite and have an unstructured cement!

Recent posts

Difflugia symoensi

Difflugia symoensi, from Chardez, 1964 Difflugia symoensi  Chardez, 1964 Diagnosis: Test bag-shaped, with pseudostome almost as wide as the width of the test; fundus rounded.

Read More »

Difflugia tenuis

Difflugia tenuis, from Penard, 1890 Difflugia tenuis  (Penard, 1890) Chardez, 1983 Diagnosis: Test cylindrical or slightly pyriform, fundus often more angular then rounded, very transparent

Read More »

Difflugia gigantea

Difflugia gigantea (left) compared with other species to show its size Difflugia gigantea Schlumberger, 1845 Diagnose: test ovoid, elongated, narrowed anteriorly, almost pyriform, sometimes slightly

Read More »

Difflugia masaruzzii

  Difflugia manicata, test and nucleus – after Van Oye, 1958   Difflugia masaruzzii  Van Oye, 1958 Diagnosis: Test more or less ovoid with lateral

Read More »