Humpback Blackdevil and Similar Species
Melanocetus johnsonii
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Open the appSeveral fish can be confused with Humpback Blackdevil. Here are the key differences.
Species often confused with {name}
Common Blackdevil
Melanocetus murrayi
Key differences: While very similar in general appearance and habitat, M. murrayi typically has a slightly different number of fin rays (e.g., dorsal fin rays 13-15 vs. 16-17 in M. johnsonii) and subtle differences in the morphology of the esca. Precise identification often requires detailed examination of preserved specimens.
Giant Seadevil
Ceratias holboelli
Key differences: Belongs to a different family (Ceratiidae). While also a deep-sea anglerfish with a lure, Ceratias species typically have a more elongated body shape, and females possess a second, smaller dorsal fin ray (caruncle) behind the illicium, which is absent in Melanocetus.
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