smacu gismu

x₁ is a mouse of species/breed x₂.

In notes:

ratcu: x₁ is a rat of species/breed x₂.
ronte: x₁ is a rodent [can be a member of eutherian mammal Rodentia; semantic broadening might subjectively generalize the concept somewhat] of subtaxon/type/genus/species/breed/variety x₂.
sengi: x₁ is an elephant shrew/jumping shrew/sengi (member of Afrotherian mammal order: Macroscelidea) of subtaxon/type/genus/species/variety/breed x₂
marmota: x₁ is a marmot/woodchuck/groundhog of species x₂.
ratmacu: x₁ is a mouse/rat (family Muridae) of species/breed x₂
raunte: x₁ is a rodent [can be a member of eutherian mammal Rodentia; semantic broadening might subjectively generalize the concept somewhat] of subtaxon/type/genus/species/breed/variety x₂.
ratcnrodentia: x₁ is a rodent [member of eutherian mammal Rodentia] of subtaxon/type/genus/species/breed/variety x₂
rontnrodentia: x₁ is a rodent [can only be a member of eutherian mammal Rodentia] of subtaxon/type/genus/species/breed/variety x₂