Main Ref.	Soledade, G.O., P.S. Santos and A.O. Almeida, 2014
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	This species can be distinguished from its congeners by a very short rostrum (often not exceeding half of the cornea) and absence of setae on the pterygostomial angle of the caparace. Coloration: Body semi-translucent, with brownish to orange chromatophores which are irregularyly and sparsely distributed on carapace and arranged in narrow transverse bands on the abdomen. Telson and uropods with bluish pigmentation towards distal end; antennal and antennular flagella and pereiopods pale bluish; eyes reddish to pink; eggs brownish (Ref. 129123).
Ease of Identification

Meristic characteristics of Potamalpheops tyrymembe

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