Morphology Data of Eviota nigriventris
Identification keys
Main Ref. Greenfield, D.W. and L. Tornabene, 2014
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

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

This species is distinguished from its congeners by the following set of characters: cephalic

sensory-pore system pattern IV of Lachner & Karnella (1983); i.e. the PITO and IT pores are lacking and the AITO pore is enlarged); dorsal/anal-fin formula 9/8, unbranched pectoral-fin rays; genital papilla of male non-fimbriate; usually pectoral-fin base with a few chromatophores restricted to an area across from the top few fin rays, but more pigmentation on the rest of the base can be present; when preserved ventral half of body with a slightly dusky stripe, wider than eye diameter at middle of anal fin, with a dark semi-circular spot at the caudal-fin base. When alive: ventral

half of body red with a narrow white line above it running the length of the body; eye with a narrow white line running across it above the pupil, a short white line behind the eye, and a small white spot under the eye (Ref. 95677).

Ease of Identification

Meristic characteristics of Eviota nigriventris

Lateral Lines Interrupted: No
Scales on lateral line 22 - 23
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 2
Finlets No. Dorsal   
Spines total 6 - 7
Soft-rays total 9 - 9
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  
Soft-rays   16 - 17
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Pablico, Grace Tolentino
Modified by Capuli, Estelita Emily
Comments & Corrections
Sign our Guest Book
Back to Search
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17