Diagnosis: Test broad ovoid, with the broadest part closer to the pseudostome than to the fundus; no collar present; test circular in cross-section, usually composed of small and medium pieces of quartz; pseudostome circular. Nucleus not observed.
Dimensions: My measurements: Length 81 – 83 µm; Width 61 – 65 µm; L/W ratio 1.3 (n=3).
Ecology: In sediment of the Miljacki Cave in Croatia (collected by Najla Baković, 2018).
Remarks: This species is shaped like a inverse vase.