This galaxy has several other spectra obtained in sequences at adjacent slit positions covering a short wavelength range (8275Å-8847Å, 6295Å-6867Å and 6482Å-7054Å). The 1d extractions can be recovered from the tar file NGC4258.tar. Relevant information for each spectrum from which the extraction was obtained, is listed in the Mastertable. Some of these spectra could be combined because correspond to same location in the galaxy. These combinations are also included in the tar file and identified by the following naming convetion: name of the galaxy followed by a sequence of numbers corresponding to each spectrum used in the combination (e.g. n4258-161718 means the combination of the spectra n4258-16.110, n4258-17.110 and n4258-18.110).