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| Author | : | Hinton, M.A.C. |
| Year of publication | : | 1923 |
| Title | : | Diagnoses of species of Pitymys and Microtus occurring in Upper Freshwater beds of West Runton, Norfolk. |
| Journal | : | Ann. Mag. Nat. Hist. |
| Vol/No/Pages/Plates | : | 9, 12, 541-542. |
References:
Microtus nivalinus - 541-542 = Microtus oeconomus PALLAS 1776
Microtus ratticepoides - 541-542 = Microtus oeconomus PALLAS 1776
Pitymys arvaloides - 541-542. = Microtus arvalidens KRETZOI 1958
Pitymys gregaloides - 541-542. = Microtus gregaloides HINTON 1923