what is the body symmetry of a hagfish?
Answer The hagfish has bilateral body symmetry; this fact is well-established, but there are lots of other controversies about the hagfish among biologists. Some of those are described here: http://books.google.com/books?id=16_Xy2CXaxcC&pg=RA1-PA67&lpg=RA1-PA67&dq=hagfis… If the link doesn’t work, you can use the Google Books preview of “Endothelial Biomedicine,” Chapter 6, pg. 67. The hagfish is the only animal that has a skull but lacks a vertebral column. The debate is as to whether the hagfish is truly a fish or some more primitive member of that group.
