Main Ref.	Child, C.A., 1995
Appearance refers to

Sex attributes

specialized organs
different appearance
different colors
remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Diagnosis	A slender, attenuated species. Lateral processes separated proximally by less than twice their diameters. Ocular tubercle a broad cone as tall as wide, situated at anterior of cephalic segment. Anterior eye pair much larger than posterior pair. Proboscis slender, only about as long as cephalic segment. Abdomen slender, not longer than posterior lateral process pair. Chelifore scapes equal in length to proboscis, chelae slender, fingers almost equal in length to palm, armed with 18 to 23 small teeth. Palp third segment longest, fourth longer than fifth. Legs very slender, second tibiae very long, first tibiae longer than femora. Propodus only slightly longer than tarsus (Ref. 2153, p. 19).
Ease of Identification	likely to be confused with closely related species.

Meristic characteristics of Heteronymphon horikoshii

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
total

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