Morphology data of Nymphon diabolus
Identification keys
Main Ref. Child, C.A., 1988
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 Size: small; leg span 9.3 mm. Trunk: completely segmented, lateral processes up to twice as long as their diameters, separated by about 1.5 times their diameters, glabrous. Ocular tubercle: taller than wide, with large pigmented eyes, with apical pair of lateral tubercles half as tall as ocular tubercle itself. Abdomen: small, as tall as ocular tubercle, armed with two distal setae. Neck short, without parallel sides. Entire anterior from neck (chelifores, palps, and proboscis) reduced in size in relation to remainder of trunk and appendages. Proboscis: small, cylindrical, with rounded lips. Chelifores: small, scape curved ventrally, armed with several dorsal and distal setae not as long as segment diameter. Chela: slender, fmgers short, robust, armed with seven slender teeth on movable fmger and nine on immovable finger. Palm: with several distal setae. Oviger: distal segments from five to 10 with several lateral and distal setae as long as segment diameters. Fourth and fifth segments subequal, fifth curved, without distal pophysis. Strigilis: segments with denticulate spines with 2 lateral lobes on the proximal spines of each segment and 3 lobes on the distal spines, arranged in the formula 6:7:6:5. Terminal claw: almost as long as terminal segment, armed with six to eight endal teeth. Palp: small, slender, second segment longer than third, terminal segment 0.2 longer than fourth, both with few setae, each longer than segment diameters. Legs: long, slender, with few short setae, 2 or 3 longer dorsal and dorsodistal setae on major segments, and three sharp spines proximally, medially and distally on second tibiae ventral surface. Propodus: 2.4 times longer than tarsus, both slender, with short and long ectal setae and row of short sole spines. Claw and auxiliaries: very short, main claw only 0.23 length of propodus, auxiliaries only slightly shorter than main claw. Cement glands: not found (Ref. 6).
Ease of Identification likely to be confused with closely related species.

Meristic characteristics of Nymphon diabolus

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   
Main Ref. (e.g. 9948)
Glossary (e.g. cnidaria)
Comments & Corrections
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