BIO 370 — Vertebrate Zoology

Vertebrate Diversity
Related Invertebrates

(Click on any image for larger version)

Phylum Chordata

Subphylum Urochordata — Tunicates

Characteristics Notochord, dorsal nerve cord, and tail only present in larval stage Adults usually soft-bodied sac-like, sessile filter feeders
Spiny Sea Squirt, Halocynthia sp.	Tunicate, possibly Pyura sp.	Pacific Star Tunicate, Botryllus sp.; a colonial form: each small orange spot is a single individual; La Jolla, CA.
Social Tunicate, Metandrocarpa taylori; La Jolla, CA.	Mangrove Tunicate, Ecteinascidia sp., stained whole mount. See also labeled photo.	Ascidian "Tadpole" Larva, stained whole mount See also labeled photo.

Phylum Chordata
Subphylum Cephalochordata — Lancelets

Characteristics Elongate, laterally flattened, fish-like animals Tail and notochord persist throughout life Presence of tail (caudal) fin Notochord extends anteriorly past nerve cord Muscles segmented into myomeres Burrow in marine sediments	Lancelet (aka Amphioxus), Branchiostoma lanceolatum, stained whole mount See also labeled photo.	Lancelet (aka Amphioxus), Branchiostoma lanceolatum, stained cross section from mid-pharynx See also labeled photo.
	Pikaia gracilens model; Cambrian (Burgess Shale)

Phylum Chordata
Subphylum Vertebrata — Vertebrates

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Diversity Pages:

Invertebrate Chordates
(Lab 2)

Jawless Fishes
(Lab 3)

Cartilagenous Fishes
(Lab 5)

Bony Fishes
(Lab 6)

Amphibians
(Lab 7)

Reptiles
(Lab 10)

Prehistoric Reptiles
(Lab 10)

Birds
(Lab 11)

Mammals
(Lab 13)

Primates & Hominids
(Lab 14)

Anatomy Pages:

Tissues
(Lab 2)

Lamprey Dissection
(Lab 3)

Shark Dissection
(Lab 5)

Fish Anatomy
(Lab 4)

Amphibian Anatomy
(Lab 7)

Reptile Anatomy
(Lab 9)

Pigeon Anatomy
(Lab 11)

Mammal Anatomy
(Lab 12)

Hominid Skeleton
(Lab 14)