Ichthyological terms, not general ones.
Unsegmented and unbranched, bony structure supporting the fins in teleosts. Usually hard, rigid and pointed and may have a smooth or serrated edge. Not laterally-paired like rays, and in some species modified to form a protective structure.
Used in 15 profiles
See fin spine; also a hard, pointed, protective outgrowth or process elsewhere on the body, e.g., a preopercular spine; the spinal column of a vertebrate.
Used in 414 profiles
Any of the bony spines supporting the membrane of a fish's fin including both spines and soft rays.
Used in 793 profiles
Capable of being erected, raised, or elevated, e.g. an erectile fin spine.
Used in 2 profiles
Refers to the tip or cusp of an oral tooth, or denotes orientation towards the apex or tip of a fin, fin-spine, etc..
Located between two fin rays or spines.
Used in 2 profiles
The membrane connecting fin rays and spines in fishes.
Used in 15 profiles
In ichthyology, a bony or cartilaginous support for a fin ray or spine.
Used in 15 profiles
Of, relating to, forming or being one of the partially-fused hemal spines that support the caudal fin rays in most teleosts.
Used in 19 profiles
The backbone; the spine; in fishes, the vertebrae running from skull to caudal fin which protect the spinal cord and haemal artery as well as providing attachment for certain muscles used for swimming.
Located on the dorsal side of the caudal fin; elongate bone which supports the caudal fin rays, positioned above the urostyle and posterior to the last neural spine.
Used in 8 profiles