1. Subphylum Urochordata
Colonial tunicate – “sea squirt”
Individuals – under 0.8 inches in length
Planktonic tunicate - salp
Individuals – can be almost 4 inches in length
Chains can be up to 30 feet long

2. Subphylum Cephalochordata
Lancelet
1.0 – 3.1 inches in length

3. Order Cetacea
Whales
Porpoises
Dolphins

5. Cuvier’s beaked whale Sperm whale Maximum dive time – 138 minutes
Maximum dive depth – 9,800 feet
Sperm whale
Maximum dive time – 90 minutes
Maximum dive depth – 7,300 feet

15. Suborder Mysticeti
Pygmy right whale – 21 feet

19. Suborder Mysticeti, Family Balaenopteridae - Rorquals
Distinctive Feature – Throat pleats or ‘Ventral grooves’
Members
Blue whale
Sei whale
Bryde’s whale – 2 species
Northern minke whale
Antarctic minke whale
Humpback whale

20. Ventral Groove Blubber (VGB) Expands: 162% circumferentially
Pivoranus (1979)
Ventral Groove Blubber (VGB) Expands:
162% circumferentially
38% longitudinally
Blue whale can engulph 2,200,000 lbs of water in under 10 sec!

21. Ventral Groove Blubber
Vogl et al. (2015)

22. Vogl et al. (2015)

24. Suborder Mysticeti, Family Balaenidae – Right whales
Members
North Atlantic right whale
North Pacific right whale
Southern right whale
Bowhead whale
Callosity

25. Distinctive feature
Longest baleen of all mysticete whales
Up to 13 feet long