Studied by 52 peopleFlashcards for the lab practical, this one covering the first week of lab where we became familiar with 15 species of chordates.
What Class does this specimen belong to?
Leptocardii
What Order does this specimen belong to?
Amphioxiformes
What Family does this specimen belong to?
Branchiostomidae
What is the scientific name for this specimen?
Branchiostoma lanceolatum
What is the common name for this specimen?
European Lancelet
What characteristics define the phylum Chordata?
-Notochord
-Dorsal Hollow Nerve Cord
-Segmentation
- Post-anal tail
What Class does this specimen belong to?
Thaliacea
What Order does this specimen belong to?
Salpida
What Family does this specimen belong to?
Salpidae
What is the scientific name for this specimen?
Salpa salpa
What is the common name for this specimen?
Salp
What are some key characteristics of this specimen?
-Cellulose tunic
-Two siphons
-Filter-feeder
-Solitary of colonial
-Planktonic
What Class does this specimen belong to?
Ascidiacea
What Order does this specimen belong to?
Stolidobranchia
What Family does this specimen belong to?
Molgulidea
What is the Genera for this specimen?
Molgula
What are some key characteristics of this specimen?
-Cellulose tunic
-Incurrent and Excurrent Siphons
-Filter-feeder
-Solitary or colonial
-Benthic as an adult
What Class does this specimen belong to?
Myxini
What Order does this specimen belong to?
Myxiniformes
What Family does this specimen belong to?
Myxinidae
What is the scientific name for this specimen?
Myxine glutinosa
What is the common name for this specimen?
Atlantic hagfish
What are some key characteristics for this specimen?
-No paired fins
-Barbels around the mouth
-One pair of gill slits
-Continuous dorsal, anal, and caudal fins
-Single nostril (monorhiny)
-Eyes degenerate
What Class does this specimen belong to?
Petromyzontida
What Order does this specimen belong to?
Petromyzontiformes
What Family does this specimen belong to?
Petromyzontidae
What is the scientific name of this specimen?
Petromyzon marinus
What is the common name for this specimen?
Sea lamprey
What are some key characteristics of this specimen?
-No paired fins
-Rasping teeth
-Continuous fins
-Single nostril
-Well developed eyes
How can you identify a member of Chondrichthyes
-Tooth whorl
-Pelvic claspers
-Cartilaginous skeleton
-Pelvic claspers
What Order does this specimen belong to?
Myliobatiformes
What Family does this specimen belong to?
Dasyatidae
What is the scientific name for this specimen?
Dasyatis sabina
What is the common name for this specimen?
Atlantic stingray
How can you identify this specimen and differentiate it from other similar families?
-Presence of a spine
-No distinct pattern like other rays and skates present in lab
What Order does this specimen belong to?
Rajiformes
What Family does this specimen belong to?
Rajidae
What is the scientific name for this specimen?
Raja texana
What is the common name for this specimen?
Roundel Skate
How can you identify and differentiate this specimen from others like it in the lab?
-No spine on tail
-Very pointy rostrum
-Very noticeable spiracles
-Pattern: Dots may be present on the lab specimen on the pectoral fin, next to the main body region.
What Order does this specimen belong to?
Torpediniformes
What Family does this specimen belong to?
Torpedinidae
What is the scientific name for this specimen?
Narcine brasiliensis
What is the common name for this specimen?
Brazilian electric ray
How can you identify and differentiate this specimen from others like it in the lab?
-Stout tail
-Dorsal fins on the tail
-Large pectoral fins
-Pattern: Thick marbled stripes
-Shape: More circular than pointed body section
What animals make up Carcharhiniformes?
Sharks
What Order does this specimen belong to?
Carcharhiniformes
What Family does this specimen belong to?
Carcharhinidae
What is the scientific name for this specimen?
Rhizoprionodon terraenovae
What is the common name for this specimen?
Atlantic sharpnose shark
How can you differentiate this shark from the other in the lab?
-Straight line body and head (no hammer)
What Order does this specimen belong to?
Carcharhiniformes
What Family does this specimen belong to?
Sphyrnidae
What is the scientific name for this specimen?
Sphyrna tiburo
What is the common name for this specimen?
Bonnethead shark
How can we differentiate this shark from the other present in the lab?
-Bonnet shaped head lined with Ampullae of Lorrenzini
What defines the group Osteichthyes?
-Ossified skeleton
-Fins supported by bony rays
-Teeth embedded in marginal mouth bones
What Order does this specimen belong to?
Lepidosireniformes
What Family does this specimen belong to?
Protopteridae
What is the scientific name for this specimen?
Protopterus aethiopicus
What is the common name for this specimen?
Marbled lungfish
How can we identify this specimen and differentiate it from other present within the lab?
-Continuous dorsal, caudal, and anal fins
-Long fan-like pectoral fins
What Order does this specimen belong to?
Polypteriformes (poly-ptery-form-es)
What Family does this specimen belong to?
Polypteridae (Poly-ptery-dee)
What is the scientific name of this specimen?
Polypterus congicus
What is the common name of this specimen?
Congo bichir
How can you identify this species and differentiate this specimen from others in the lab?
-Spiny dorsal fins that are continuous into the caudal fin
How can you identify Acipenseriformes?
-Elongate body
-Unique rostrum in species present
What Order does this specimen belong to?
Acipenseriformes
What Family does this specimen belong to?
Acipenseridae
What is the scientific name for this specimen?
Scaphirhynchus platorynchus
What is the common name for this specimen?
Shovelnose sturgeon
How can you identify this specimen and differentiate it from others present in the lab?
-Shovel shaped head
-Bony plates on the head and body
-Heterocercal caudal fin
What Order does this specimen belong to?
Acipenseriformes
What Family does this specimen belong to?
Polyodontidae
What is the scientific name for this specimen?
Polyodon spathula
What is the common name for this specimen?
Paddlefish
How can you identify this specimen and differentiate it from others present in the lab?
-Long, skinny rostrum that is shaped like a paddle
-Shark shaped streamlined body
-All sets of paired fins
What Order does this specimen belong to?
Amiiformes
What Family does this specimen belong to?
Amiidae
What is the scientific name for this specimen?
Amia calva
What is the common name for this specimen?
Bowfin
How can you identify this specimen and differentiate it from others present in the lab?
-Heterocercal caudal fin (but looks homocercal!, you have to feel the bones) : abbreviated heterocercal is the proper term
- Large mouth
-Elongated body
-Bony plate between the lower jaw bones (you can feel it if you run your hand below the jaw)
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