"Gregarina, free pseudo-navicellae. GREGARINIDAE. A family or other major group of endoplastic protozoans, having spheroidal, ovoid, or elongated bodies, sometimes with a segmental constriction, and occasionally one end of the body beaked with an epimerite bearing curved horny spines." -Whitney, 1911

Gregarina

"Gregarina, free pseudo-navicellae. GREGARINIDAE. A family or other major group of endoplastic protozoans,…