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Morphology Summary - Anoplodactylus attenuatus
Morphology data of Anoplodactylus attenuatus
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 Trunk and appendages extremely attenuated and slender. Lateral processes separated by at least 3 to 4 times their diameters and as long as 3 times their diameters anteriorly; posterior processes shorter in length, armed with single distal setae or glabrous. Trunk completely segmented between very long tubular trunk segments. Ocular tubercle low, rounded, more broad than tall. Eyes large, placed distally. Proboscis cylindrical, constricted proximally and distally beyond midpoint. Lips flat. Abdomen slender truncate cone only twice as long as its diameter; armed with 2 or 3 distal setae. Chelifores very slender, with few short setae. Chelae slender; palm, rectangular, as long as fingers, which are well curved, overlapping at tips, armed with 3 sharp conical teeth on movable finger and 2 on immovable finger. Ovigers originating inswellings halfway along ventral surface of first lateral processes. Second and fourth segments subequal. Third segment almost twice as long, constricted proximally, all armed with few short setae. Fifth segment armed with two short blunt endal spines and four or five short ectal setae. Sixth segment very slender, almost as long as fifth, armed with four or five short setae. Legs extremely slender, armed with few short setae increasing in numbers distally, and single long dorsodistal seta on major segments. Femur longest segment, with 2 broad cement gland cups on low swellings on either side of femoral midpoint. Tarsus very short, with few setae. Propodus slender, slightly curved, with two large heel spines with 7 or 8 serrations on distal largest spine. Sole with 5 or 6 broad short spines proximal to very short distal propodal lamina. Several short setae flanking the sole and several on dorsal surface. Claw robust, fairly short, only slightly curved. Auxiliaries entirely lacking. Female slightly larger than male, with 2 hole spines only and longer main claw.
Ease of Identification

Meristic characteristics of Anoplodactylus attenuatus

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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