Morphology Data of Orestias gloriae
Identification keys
Main Ref. Vila, I., S. Scott, M.A. Mendez, F. Valenzuela, P. Iturra and E. Poulin, 2012
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Females reaching greater lengths than males, a plesiomorphic condition in killifishes after Parenti (1984a).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

A relatively slender-bodied species, Orestias gloriae is clearly distinguished from all other species of Orestias by the following unique characters: (1) The lyre-shaped pattern of dorsal neuromasts, which is characteristics of Orestias is reduced to the rostral and anterior supraorbital lines formed by small neuromasts followed caudally by few and large isolated neuromasts, which are irregularly placed. (2) The infraorbital line of neuromasts is represented by a discontinuous series of few small neuromasts. (3) The supraorbital line of neuromasts is not connected with both the infraorbital and preopercle-mandibular lines. (4) The skull roof is covered by thick, irregularly-shaped cycloid scales some of which bear marked ridges, whereas other lack ornamentation. (5) The large, irregularly-shaped scales covering the posterior part of the skull roof are ankylosed to each other into a thin, rigid plate. In addition, O. gloriae presents a protractile upper jaw reaching one-third of the head length when extended. This value is higher than those found in other species of Orestias with protactibility and inhabiting the southern Chilean Altiplano. The new species has 29-31 vertebrae, a value that represents the lowest range among species of Orestias (Ref. 89071).

Ease of Identification

Meristic characteristics of Orestias gloriae

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Busson, Frédéric
Modified by Busson, Frédéric
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