Phylum Annelida                

Class Clitellata                                        

Order Opisthopora                                                                      

Family Lumbricidae

Location: Altai Krai, Russia.

Ecology: endogeic

Diagnosis: body length 90–120 mm, 116 segments, clitellum extends on segments 26–32, saddle-shaped, color absent, male pore on 15 small, setae closely paired, head epilobous.