Morphology Data of Sovvityazius acer
Identification keys
Abnormalities
Main Ref. Prokofiev, A.M., 2015
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

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

This species is distinguished by the following characters: body elongated (H 9.7-11.8 times in SL) but not eel-like; D 40-42 rays; A 38-40; oral fissure almost horizontal, with upper jaw slightly protruded over lower jaw; teeth on premaxillae in one row, uniformly sized, needle-shaped, and densely arranged and with tips slightly inclined posteriorly; teeth on lower jaw is similar, but 0-3 teeth located on each side near symphysis of dentals behind teeth of internal row; head depressed in dorsoventral direction, no sagittal crest, interorbital gap flattened, from 8-10 times in head length; eyes are exceptionally well developed in comparison to other representatives of subfamily, covered by skin, but with normal structure and their vertical diameter only one and half times less than interorbital gap; no barbels or dermal crests on head; P 17-20, symmetrical, with its rays totally connected by membrane and majority of its rays branched; V equal to or longer than P, 60-75% in head length, fully fused into a sucking disc, with rounded posterior

margin, its frenum is narrow but fully developed, without lobules; formula of dorsal pterygiophores 3 1221, a vacant gap between spined and soft parts of D present, two first pterygiophores of soft part of D each in its interneural space and two pterygiophores of A before first hemapophysis, with all pterygiophores having normal structure; pleural ribs from third to tenth centra normally developed, ad parapophyses on posterior precaudal centra weakly developed; vertebrae 10 + 19; absence ot hypural 5 and epurals 2; scales cycloid and well developed; intestine elongated and spirally twisted (Ref. 129446).

Ease of Identification

Meristic characteristics of Sovvityazius acer

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
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal 10 - 10
total 29 - 29

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 6 - 6
Soft-rays total 26 - 26
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 27 - 27

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   21 - 21
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17