Arciferal denotes a morphology of the
pectoral girdle
The shoulder girdle or pectoral girdle is the set of bones in the appendicular skeleton which connects to the arm on each side. In humans, it consists of the clavicle and scapula; in those species with three bones in the shoulder, it consists o ...
of
frog
A frog is any member of a diverse and largely semiaquatic group of short-bodied, tailless amphibian vertebrates composing the order (biology), order Anura (coming from the Ancient Greek , literally 'without tail'). Frog species with rough ski ...
s. In arciferal girdles, the epicoracoid cartilages are fused anteriorly, but are separate and overlapping posteriorly. This is in contrast to the other predominant morphology, a
firmisternal girdle. Arciferal morphology is generally considered primitive for anurans.
References
Animal morphology
Frogs
{{anura-stub