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Unique Characters: Dorsal fin single, posteriorly located, consisting entirely of soft rays. Pelvic fins with four rays and joined to form part of adhesive disc located between head and trunk. Pelvic-fin rays form lateral edges of disc, and fourth ray joined to lower portion of pectoral-fin base by membrane. Free edge of posterior section of disc extends dorsally to form axial dermal flap. Disc bears flattened papillae along its anterior lateral margins, posterior margin, and central region.
Similar Species: None.