Lecture 4

Question 1

Key points about the hagfish skeleton

Answer 1

1) there is no brain case
2) there are slender rays in the caudal fin
3) the head skeleton consists of slender cartilaginous elements
4) the skeleton is situated mostly in the head and in the anterior most trunk region

Question 2

The mouth of a hagfish contains what?

Answer 2

A cartilaginous plate or dental plate

Which has two pairs of comb-like teeth

It is protractible and retractable