Precaudal vertebra 1 of Graus nigra (external view)
Maximum known length for this species		20.3 cm TL (male)
Specimen collection		Study collection of P. Béarez (Paris, France), specimen n°MNHN-4014
Specimen determination		Béarez, P. (1999)
Specimen length		44.3 cm SL, 53.0 cm TL
Collection site of the specimen		Los Molles (Chile)
Image scale		1 cm
Image source		Grosjean, S.
Image acquisition		scanner
		Epson Perfection 3200 Photo