user: ### NOW ANSWER:
Question: What is the species with the common name "Mouse"?
Columns: ['Species', 'Species common name', 'NCBI Accession Number (mRNA/Protein)', 'Length (bp/aa)', 'Protein Identity']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Homo sapiens', 'Human', 'NM_014157.3 / NP_054876.2', '5304bp/377aa', '100%']
SQL:

assistant: SELECT COUNT("Species") FROM "Table" WHERE "Species common name" = 'Mouse';