Diagnosis: Shell spheroidal to ovoid, slightly compressed laterally, with 2 divergent spines on aboral margin, one large dorsal, one smaller ventral. Distal end of peristome process expanded into 3 small very weakly developed teeth.
Length (including spines and process): 0.12-0.14 mm.
Kingdom Protoctista Phylum Actinopoda Subphylum Sarcodina Class Phaeodaria Order Phaeogromia Family Challengeridae Genus Protocystis Species Protocystis heterocentrota
Status in World Register of Marine Species
Not included in WoRMS database
Sorry, there are no scientific synonyms and common names available for this species
Peters N. 1929. Die tripyleen Radiolarien der Weddell-See. Internat. Rev. Ges. Hydrobiol. Hydrogr., 21:383-401.