Death Grip - S2-E4
Other mistake: While irrigating the alligator's stomach a human foot falls out, there is no way a foot that size could fit through that PVC pipe.
Death Grip - S2-E4
Continuity mistake: When Jeff Corwin is explaining to Calleigh and Delko that the tooth they have came from a crocodile instead of an alligator, the jar in Delko's hand very quickly jumps from one hand to the other. (00:25:50)
Death Grip - S2-E4
Plot hole: There is absolutely nothing that would give Horatio any reason to think the severed arm they found was from a previous victim of their suspect. It doesn't make any sense he would pick something as random as the arm that has no connection (other than it being found during the search for the girl) to the case.
Answer: Yes, sizes of jails differ.