Protocrena gigantis

“Gigantic first tooth”
Kingdom
Microsynthera
Phylum
Plasticae
Class
Occlupanida
Order
Orthogonidectes
Family
Archignathidae
Genus
Protocrena
Species
gigantis
External morphology

Large with chiseled outer edge. 42 mm x 35 mm.

Often found in bulk-bagging aisles of grocery stores. One of the largest archignathids, P. gigantis was at first considered to be a species complex, but the various oral groove sizes are currently being split into different taxons. The oral groove depth for P. gigantis is measured at 15 mm.