spineback

Meaning

1. noun A fish with spines in, or in front of, the dorsal fins, such as the Notacanthus sexpinis or the spiny dogfish (Squalus acanthias).
2. noun A spineback hairy crab, of species Pilumnus sayi

Similar words

finspine interspine spinefoot backfin pin bone actinophore triggerfish thoracic lionfish sail