Morphology Data of Rouleina guentheri
Identification keys
Abnormalities
Main Ref. Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral elongated
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth superior
Type of scales
Diagnosis

Body with wrinkled gelatinous skin covering. Small photopores on body. Closely resembles R. watasei but differs in having a gently curved and long snout. Body color dusky-purple.

Ease of Identification

Meristic characteristics of Rouleina guentheri

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 no striking attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 18 - 20
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 16 - 20

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   6 - 7
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     0
Soft-rays   6 - 7
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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