| Family | Scientific Name | Author | Year | Common Name |
| Echeneidae | Echeneis neucratoides | Zuiew | 1786 | Whitefin Sharksucker |
Echeneis neucratoides
Unique Characters: Body very elongate, depth contained 8-14 times in standard length. Pectoral fins pointed. Usually a dark longitudinal band on sides, bordered with white. Anal-fin soft rays 29-41. Caudal fin lanceolate in young, the middle rays filamentous, almost truncate in adults, the lobes produced. Sucking disc large, with 18-28 laminae. Disc laminae usually 21. Dorsal-fin rays usually 36; anal-fin soft rays usually 33. More white on fins at all sizes.
Similar Species:
Slender Suckerfish
Phtheirichthys lineatus
Sharksucker
Echeneis naucrates
Slender Suckerfish Phtheirichthys lineatus. Body very elongate, depth contained 8-14 times in standard length. Pectoral fins pointed. Usually a dark longitudinal band on sides, bordered with white. Anal-fin soft rays 29-41. Caudal fin lanceolate in young, the middle rays filamentous, almost truncate in adults, the lobes produced. Sucking disc small, with 9 -11 laminae.
Sharksucker Echeneis naucrates. Body very elongate, depth contained 8-14 times in standard length. Pectoral fins pointed. Usually a dark longitudinal band on sides, bordered with white. Anal-fin soft rays 29-41. Caudal fin lanceolate in young, the middle rays filamentous, almost truncate in adults, the lobes produced. Sucking disc large, with 18-28 laminae. Disc laminae usually 23. Dorsal-fin rays usually 39; anal-fin soft rays usually 36. Tips of dorsal, anal, and caudal fins white.
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