A New Bog Lemming (genus Synaptomys) from Nebraska

A compact, meticulous taxonomic study from the mid-20th century that introduces a newly recognized subspecies of bog lemming from the sands of Dundy County, Nebraska. J. Knox Jones presents careful morphological comparisons, skull measurements, dental details, coloration, against its close relatives S. c. gossii and S. c. paludis, arguing for the distinctiveness of a small population clinging to existence at Rock Creek State Fish Hatchery. The paper carries an implicit urgency: this population of Synaptomys cooperi relictus appears to be a remnant, a relict of wider distributions during earlier geological epochs, now isolated and vulnerable. There is something quietly moving about this document, the image of a field biologist examining specimens, measuring skulls, making the careful case that this small, particular form of life deserves recognition as its own. For readers interested in the history of American mammalogy or the quiet science of documenting biodiversity before it vanishes, this is a compact, satisfying artifact.