Cheiroseius cassiteridum (Evans & Hyatt, 1960)
Sejus cassiteridum Evans & Hyatt, 1960: 61 .
Sejus cassiteridium (sic).— Karg, 1971b: 255.
Cheiroseius cassiteridium (sic).— Bregetova, 1977a: 193.
Cheiroseius (Posttrematus) cassiterridium (sic).— Karg, 1981: 58. Cheiroseius (Posttrematus) cassiteridium (sic).— Karg, 1993: 258; Kalúz & Fenďa, 2005: 49. Cheiroseius cassiteridus (sic).— Farrier & Hennessey, 1993: 31.
TYPE DEPOSITORY: British Museum (Natural History), London, England; accession number 1959.I.20.92.
TYPE LOCALITY AND HABITAT: Big Pool, Saint Agnes, Isles of Scilly, Cornwall, England, on roots of rushes.