L. Huet et al., About some skeletal particularities of the first vertebrae related to the mode of prey capture in Uranoscopus scaber (Uranoscopidae), CYBIUM, 23(2), 1999, pp. 161-167
Feeding in Uranoscopus scaber is characterised by bending of the body just
behind the head. Bending is related to the organisation of the first five v
ertebrae: vertebral centra of lesser height fitting one into the next; shor
t, less tilted neural spines, presence of many intervertebral ligaments. Be
nding of the vertebral column causes the head to rotate upward and the mout
h to open just beneath the prey; it also brings the pharyngeal jaws, shifte
d with respect to each other at rest, to face each other.