The class Diplopoda in Mongolia, with description of a new species Author Mikhaljova, Elena V. text Zootaxa 2012 3418 41 50 journal article 10.5281/zenodo.211142 3c5e8026-0f19-46a3-baec-242782fa18cc 1175-5326 211142 Ancestreuma ryvkini ( Shear, 1990 ) Diplomaragna ryvkini Shear, 1990 : 15 , 14: figs 6–8. Diplomaragna ryvkini — Mikhaljova 1993 : 25 . Diplomaragna longibrachiata — Mikhaljova 1993 : 25 . Ancestreuma ryvkini — Mikhaljova 2000 : 156 ; 2002: 204; Mikhaljova & Golovatch 2001 : 109 . Remarks. Originally described in Diplomaragna ( Shear 1990 ) , this species has since been transferred to the restored Ancestreuma ( Mikhaljova 2000 ) . The species is known from different regions of Siberia (Buryatia, Irkutsk Area, Republic of Tyva, Republic of Sakha (=Yakutia), Krasnoyarsk Province) as well as Mongolia (Khubsugul Lake, River Ongolich). MAP 1 . Distribution of Diplopoda species in Mongolia . Borderlines show borders between the aimaks. Filled diamond: Angarozonium amurense , filled square: Shearia longa sp. nov. , open square: Asiatyla communicantis ( Golovatch, 1977 ) , filled triangle: Ancestreuma principale Golovatch, 1977 , open triangle: Ancestreuma longibrachiatum ( Shear, 1990 ) , filled circle: Asiatyla ulykpani ( Shear, 1990 ) , open circle: Ancestreuma ryvkini ( Shear, 1990 ) , cross: Ancestreuma sardyk ( Shear, 1990 ) .