Unformatted text preview: -swimming colony above and
larvacean (solitary) below)
larvacean has a head-like structure and a long tail (postanal: nerve
cord and notochord) Vertebrates have colonized a wide variety of environments slime eels the slime protects them Hagfishes: no jaws + have notochord
scavengers on dead
have notochord through out their life •! no bone, no jaws
•! tongue with rasping teeth
•! can tie themselves in knot
for greater leverage when
tearing food from prey
feed on dead carcasses •! produce copious amounts of
•! have a notochord Lamprey: bloodsucking parasite of fish!
•! no bone, no jaws
•! sucker-like mouth and
•! larvae are mud-dwelling
filter feeders as an adult it becomes ectoparasite: hang on to the outside of a fish w/ sucker like mouth
suck out the fluid (blood) of the fish...
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This document was uploaded on 04/13/2013.
- Fall '08