Morphology Data of Squalus hima
Identification keys
Abnormalities
Main Ref. Beura, S., K.K. Bineesh, Moumita Das, S. Swetha and Ranjana Bhaskar, 2024
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 oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished from its regional congeners species by the following characters:

snout short and pointed, its length 5.6-6.0% of TL and 22.8-24.1% of HL; pre-orbital length 5.8-6.5 % of TL; prenarial length in inner nostril-narial furrow space is 0.88-1.58; external nasal opening is rounded in shape; teeth in both jaws are of similar shape and structure; teeth of upper

jaw smaller than lower jaw; body high and slightly arched from the dorsal origin of first gill slit to pre-first dorsal fin; spiracles placed little above the eyes; eye to spiracle space is 0.7-0.9% of TL; head height is 1.2-1.4 in trunk height; the origin of first dorsal fin behind the insertion of pectoral fin; second dorsal fin positioned between pelvic & caudal fins; first dorsal spine length is 1.9-2.9% TL; second dorsal spine length is 2.8-3.6% TL; pelvic fin free rear tip is pointed; no anal

fin; caudal fin large with upper lobe wide and dorsal margin almost straight in shape; flank denticles are tricuspid; vertebrae, monospondylous 16-22; pre-caudal 61-63; caudal 23; total vertebrae 84-86 (Ref. 131348)

Ease of Identification

Meristic characteristics of Squalus hima

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 61 - 63
total 84 - 86

Fins

Dorsal fin(s)

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

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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