Morphology Data of Hypleurochilus langi
Identification keys
Abnormalities
Main Ref. Daget, J., 2003
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 elongated
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: length of supraorbital tentacles varies from approximately 2/3 of eye diameter to 2 times this diameter; longest tentacles occur in male specimens; shape of supraorbital tentacles varies from a single finger-like appendage bearing 2-4 filaments at the rear base to 4 appendages of almost equal length; anterior nostril forms a small tube which bears up to 4 cirri on posterior rim, only 1 in most cases; only one ring of cephalic sensory pores in infraorbital and preopercular series; lateral line does not reach beyond level of 8th-10th spine of dorsal fin; both males and females with a thin crest on head, but crest in females not as high as in males; dorsal fin with 12 spines and 14-17, generally 15-16, soft rays, last spine shorter than soft rays; anal fin with 2 spines and 16-19, generally 17-18, soft rays; caudal fin rounded (Ref. 81288).

Coloration: in alcohol, uniformly clear brown, lower part of head and throat clearer; some individuals with a black spot on membrane between 1st and 3rd dorsal spines; sometimes flanks bearing vertical stripes darker (Ref. 81288).

Ease of Identification

Meristic characteristics of Hypleurochilus langi

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 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   0
Ventral  0
Spines total 12 - 12
Soft-rays total 14 - 17
Adipose fin absent

Caudal fin

Attributes more or less normal

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 16 - 19

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   14 - 15
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Soft-rays   4 - 4
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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