Morphology data of Ascorhynchus cooki
Identification keys
Main Ref. Child, C.A., 1998
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 Leg span: 180 mm. Trunk: smooth with conical dorsomedian tubercles on segment posteriors, separated from lateral processes with smaller conical tubercles on dorsodistal tips. No appendage setae or spines. Neck: long, ocular tubercle as tall as trunk tubercles, positioned dorsally to oviger bases at posterior third of neck length. Eyes: small, indistinct. Proboscis: tripartite shape with proximal and distal rings. Abdomen: long, downward ventrally to plane of trunk. Chelifore: scapes 2 segments short, subequal in length, chelae vestigial, tiny knobs with minute segmentation line. Palps and ovigers: typical. Male oviger sixth segment with long and short setae subsequent to strigilis which has 3 to 5 rows of narrow denticulate spines. Terminal claw: short, small. Legs: long and slender, without spines or setae. Femur: long segment, tarsus shorter than propodus, claws short, claws of first leg pair small, no longer than wide. Cement glands: extend from proximal femore to distal first tibiae (Ref. 9).
Ease of Identification likely to be confused with closely related species.

Meristic characteristics of Ascorhynchus cooki

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   
Ref. [ e.g. 3742]
Glossary [ e.g. cnidaria]
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