[1] : The Collaborative International Dictionary of English v.0.48

spectral \spec"tral\, a.
   1. of or pertaining to a specter; ghosty.
      1913 webster

            he that feels timid at the spectral form of evil is
            not the man to spread light.          --f. w.
                                                  robertson.
      1913 webster

   2. opt. of or pertaining to the spectrum; made by the
      spectrum; as, spectral colors; spectral analysis.
      1913 webster

   spectral lemur. zool. see tarsius.
      1913 webster
see also:
spectral lemur tarsius 

[2] : The Collaborative International Dictionary of English v.0.48

tarsius \tar"sius\, n. nl. see tarsus. zool.
   a genus of nocturnal lemurine mammals having very large eyes
   and ears, a long tail, and very long proximal tarsal bones;
   -- called also malmag, spectral lemur, podji, and
   tarsier.
   1913 webster
see also:
tarsus malmag spectral lemur podji tarsier 

Lemur >> L Words
Lemur, definition of term: Lemur
lemur_pag1.html

Spectral >> S Words
Spectral, definition of term: Spectral
spectral_pag1.html

Lemur Varius >> L Words
Lemur Varius, definition of term: Lemur Varius
lemur+varius_pag1.html