Home|Search|Identify|Taxonomic tree|Quiz|About this site|Feedback
Developed by ETI BioInformatics
Characteristics, distribution and ecology
Taxonomische classification
Synonyms and common names
Literature references
Images, audio and video
Links to other Web sites


Diagnosis: Shell lentellipsoidal to lenticular, circular to ovate in lateral view, rather strongly compressed. Peristome semi-tubular. nearly straight, extending obliquely and ventrally over oral opening, extending distally into 2 parallel lateral teeth, sometimes with third medial tooth.

Length: 0.26-0.4 mm.

Protocystis thomsoni