Palaeogale is an extinct genus of carnivorous mammal known from the Late Eocene, Oligocene, and Early Miocene of North America, Europe, and Eastern Asia.
 A small carnivore often associated with the mustelids, "Palaeogale" might have been similar to living genets, civets, and linsangs.
The fossa ( or ; Malagasy ] ; "Cryptoprocta ferox") is a cat-like, carnivorous mammal endemic to Madagascar.
 It is a member of the Eupleridae, a family of carnivorans closely related to the mongoose family (Herpestidae).
 Its classification has been controversial because its physical traits resemble those of cats, yet other traits suggest a close relationship with viverrids (most civets and their relatives).
 Its classification, along with that of the other Malagasy carnivores, influenced hypotheses about how many times mammalian carnivores have colonized Madagascar.
 With genetic studies demonstrating that the fossa and all other Malagasy carnivores are most closely related to each other (forming a clade, recognized as the family Eupleridae), carnivorans are now thought to have colonized the island once around 18 to 20 million years ago.
The fisher ("Pekania pennanti") is a small carnivorous mammal native to North America.
 It is a member of the mustelid family (commonly referred to as the weasel family) and is in the monospecific genus Pekania.
 The fisher is closely related to but larger than the American marten ("Martes americana").
 The fisher is a forest-dwelling creature whose range covers much of the boreal forest in Canada to the northern United States.
 Names derived from aboriginal languages include pekan, pequam, wejack, and woolang.
 It is also called a fisher cat, although it is not a feline.
A weasel is a small carnivorous mammal.
The sable ("Martes zibellina") is a marten species, a small carnivorous mammal inhabiting forest environments, primarily in Russia from the Ural Mountains throughout Siberia, northern Mongolia.
 Its habitat also leans the borders of eastern Kazakhstan, China, North and South Korea and Hokkaidō in Japan.
 Its range in the wild originally extended through European Russia to Poland and Scandinavia.
 It has historically been hunted for its highly valued dark brown or black fur, which remains a luxury good to this day.
 While hunting of wild animals is still common in Russia, most fur in the market is now commercially farmed.
The brown antechinus ("Antechinus stuartii"), also known as Stuart's antechinus and Macleay's marsupial mouse, is a species of small carnivorous marsupial of the family Dasyuridae.
 The males die after their first breeding season, and the species holds the world record for being the world's smallest semelparous mammal.
The cat ("Felis silvestris catus"), also known as the domestic cat or house cat to distinguish it from other felines, is a small carnivorous species of crepuscular mammal that is often valued by humans for its companionship and its ability to hunt vermin.
Before the 1849 California Gold Rush, American, English and Russian fur hunters were drawn to Spanish (and then Mexican) California in a California Fur Rush, to exploit its enormous fur resources.
 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.
 It was California's early fur trade, more than any other single factor, that opened up the West, and the San Francisco Bay Area in particular, to world trade.
Two ships of the Royal Navy have been called HMS "Sable" after the small carnivorous mammal:
The cinnamon antechinus ("Antechinus leo"), also known as the Iron Ranges antechinus and the Cape York antechinus, is a species of small carnivorous marsupial of the family Dasyuridae.
 It is the only mammal endemic to Cape York Peninsula, being confined to semideciduous forest around the McIlraith and Iron Ranges. Along with the Atherton antechinus ("Antechinus godmani"), it is the rarest in its genus.

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?
Answer: Pekania pennanti