Morphology Data of Histiophryne psychedelica
Identification keys
Main Ref. Pietsch, T.W., R.J. Arnold and D.J. Hall, 2009
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 short and / or deep
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is unique in having a broad flat face, surrounded by thick, fleshy, laterally expanded cheeks and chin, with eyes directed anteriorly; body skin thick and loose, forming conspicuous fleshy folds that envelop the unpaired fins; a pigment pattern of white stripes runs from the eyes and continuing back to the body and tip of the caudal fin; genetic divergence in the nuclear recombination activation gene-2 (RAG2), cytochrome oxidase-I (COI), and 16S rRNA genes (Ref. 80493).

Description: Characterized by yellowish tan to reddish color; microscopic size of illicium; thick skin bounds second and third dorsal spines to surface of head; absence of caudal peduncle, posterior margins of dorsal and anal fins connected to base of outermost caudal fin rays (Ref. 90102).

Ease of Identification

Meristic characteristics of Histiophryne psychedelica

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
total 20 - 20


Dorsal fin(s)

Fins number 3
Finlets No. Dorsal   
Spines total 3 - 3
Soft-rays total 13 - 13
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Soft-rays   8 - 8
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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