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no flap front nostrilD 10-12
pectoral 21-24body - many narrow Y bars, oblique at frontblotch above pectoralanus nearer A than sucker -
front nostril: large flapD 7-8
pectoral 21-24pale + fine dark meshworkno blotch above pectoralanus ~ midway A to sucker -
front nostril - small flap
4 lines down from eyeD 6-8
pectoral 20-21upper body - white speckling
over belly - pale stripe with 2 ventral extensionsno blotch above pectoralanus nearer A than sucker -
front nostril: small flapD 7-8
pectoral 19-21fine brown mesh + irregular barsblotch above pectoralanus nearer A than sucker -
front nostril: no flap
lines down & back from eyeD 10body- 7 brown bars
C base dark, other fins clearblotch above pectoralanus nearer A than sucker