Morphology data of Acanthocardia aculeata
Identification keys
Main Ref. Sabelli, B. and H.S. Feinberg (eds.), 1879
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 Shell: solid, convex valves, equivalve and inequilateral, roughly oval in shape, uniformly deep yellow brown in color; sculpture consists of 20-22 well-developed ribs, with triangular spikes along the mid-line, in between are very marked concentric grooves; external ligament behind the umbones, hinge is heterodont; inside the valves are two identical scars (dimyarian and isomyarian) joined by a continuous pallial line, lacking a sinus. Body: foot is roughly cylindrical, well developed and used for leaping on the sand; distal extremity is bright red.
Ease of Identification

Meristic characteristics of Acanthocardia aculeata

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)
Entered by Parducho, Vina Angelica
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