Question: What is the scientific name associated with the small carnivorous mammal and member of the mustelid family that was sought after during the California Fur Rush?
Sentence (from "California Fur Rush"): Before 1825, these Europeans were drawn to the northern and central California coast to harvest prodigious quantities of southern sea otter ("Enhydra lutris nereis") and fur seals ("Callorhinus ursinus"), and then to the San Francisco Bay Area and Sacramento – San Joaquin River Delta to harvest beaver ("Castor canadensis"), river otter ("Lontra canadensis"), marten, fisher, mink, gray fox ("Urocyon cinereoargenteus"), weasel, and harbor seal.
Relevant evidence: Yes