The Collaborative International Dictionary of English v.0.48:

Procoelia \Pro*c[oe]"li*a\, n.; pl. Proc[oe]li[ae]. [ NL.]
   (Anat.)
   Same as Proc[oe]le.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Procoelia \Pro*c[oe]"li*a\, n. pl. [NL.] (Zool.)
   A division of Crocodilia, including the true crocodiles and
   alligators, in which the dorsal vertebr[ae] are concave in
   front.
   [1913 Webster]