The phrase "a long caudal" is correct and usable in written English.
It can be used in contexts related to biology or anatomy, particularly when describing the tail or tail-like structure of an organism.
Example: "The fish is characterized by a long caudal that aids in its swimming efficiency."
Alternatives: "an elongated tail" or "a lengthy caudal structure".
The tail is slender, leading to a long caudal fin with a small lower lobe and a low upper lobe with a prominent ventral notch near the tip.
During starvation, Tetrahymena cells also experience a morphological transformation in which they elongate and develop a long caudal cilium and swim rapidly [49], [50], presumably to facilitate dispersion as an adaptive strategy in seeking either a mate or richer environment.
The bone is almost triangular and has a long caudal suture with the maxilla, as well as a straight, upwardly-directed suture with the premaxilla of the left side.
Whether this is indeed underlain by a delayed onset of Hox12 expression relative to Hox11 expression in the paraxial mesoderm creating a long anterior caudal region and posteriorly displaced anal fin, as would be the case if these anterior caudal vertebrae bore a sacral identity, remains to be tested.
Its long caudal fin, held at a low angle, is also typical of a slow-swimming shark.
The goblin shark is also considered a deep-water inactive and almost neutrally buoyant shark2,3,4,18, and it actually swims slowly by undulating the tail region and long caudal fin (in situ personal observations).
Axons from VPM barreloids linked to the long caudal (low arc number) whiskers project to the posteriomedial subfield of the barrel cortex, while the short rostral whiskers are linked to the anterolateral subfield.
Caudal fin length was estimated by calculating a mean value from the four middle caudal fin rays (the longest caudal rays in P. taeniatus).
Atractosteus spatula has the second longest caudal region of the sampled species at 24.8 (range: 22 29 [ 28]).
In addition to this main vasculature, the left pancreatic lobe is also supplied by a few small branches of the gastroduodenal artery (which is one of the two terminal endings of the hepatic artery) and, rarely, by a long branch of the caudal pancreaticoduodenal artery [ 26].
The backbone extends through the forked caudal fin as a long central filament.
