Tuesday, April 12, 2011

Sea Squirts, Lancelets, etc.

Sea Squirt-
The sea squirt is a marine animal from the class Ascidiacea and subphylum Urochordata. They are stuck to a surface and live there forever. Sea squirts are hermaphroditic. They start their life out with a notochord, which dissolves later.
Another animal from Urochordata:

(Sea Tulip)

Lancelet-
Lancelets are translucent, and are shaped kind of like a fish. They have notochords for their entire life. Lancelets have cirri in front of their mouths for sensing and filtering water. They don't have a respiratory system, they breathe through their skin.
More from Cephalochordata:
(Hagfish)


No comments:

Post a Comment