Descriptive of any creature that has two long, thin, armlike parts: While researching zoological species in the sea, Brian noticed that there were some bitentacle animals in addition to the octopi (eight-tentacle animals) and squids (ten-tentacle animals).

One example of a bitentacle creature is the cuttlefish that has eight arms and two tentacles that have toothless suckers with which they grab and hold their prey.