Pachyschesis is a genus of crustaceans belonging to the monotypic family Pachyschesidae.^[1]

Pachyschesis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Superorder:	Peracarida
Order:	Amphipoda
Superfamily:	Gammaroidea
Family:	Pachyschesidae
Genus:	Pachyschesis Bazikalova, 1945

Species:^[1]

• Pachyschesis acanthogammarii Tachteew, 2001
• Pachyschesis bazikalovae Karaman, 1976
• Pachyschesis bergi Bazikalova, 1945
• Pachyschesis branchialis (Dybowsky, 1874)
• Pachyschesis bumammus Tachteew, 2001
• Pachyschesis crassus (Sowinsky, 1915)
• Pachyschesis cucuschonok Tachteew, 2001
• Pachyschesis indiscretus Tachteew, 2001
• Pachyschesis inquilinus Tachteew, 2001
• Pachyschesis karabanowi Tachteew, 2001
• Pachyschesis lamakini Tachteew, 2001
• Pachyschesis pinguiculus Tachteew, 2001
• Pachyschesis punctiommatus Tachteew, 2001
• Pachyschesis rarus Tachteew, 2001
• Pachyschesis sideljowae Tachteew, 2001
• Pachyschesis vorax Tachteew, 2001