Lec 16 Percomorphs Flashcards
Order Lampriformes:
ribbonfishes and allies
ex. opah, crestfishes, ribbonfishes, oarfishes, tube eyes,
What fishes are mistaken as sea serpents?
oarfishes
What do all the lampriformes share?
Unique modification of upper jaw that allows protrusion of both premax and maxillae together.
Highly protractile premaxillae
Order Beryciformes
Squirrel fishes and alleles.
Poorly understood. Prob artificial assemblage of unrelated taxa.
Order Zeiformes:
Dories and oreos
deep water fishes
Order gasterosteiformes:
sticklebacks and their allies
Order synbranchiformes
swamp eels,
resemblance to anguilliform is only superficial
How are synbranchiformes and anguilliformes different?
There’s a single trasnverse slit in synbranchiforms.
Order scorpaeniformes:
mail cheeked fishes.
Suborder: scorpaenoidei:
rosckfishes, scorpion fishes, stonefishes, velvetfishes
Suborder Platycephaloidei
flatheads, marine,
Order Perciformes:
the perches,
largest and most diversified of fish orders
most dominate vertebrates in marine habitats
Order pleuronectiformes
flatfishes
from monophyletic assemblage,
Larval flatfishes are bilaterally symmetrical and swim upright, eye migrates across top of scull and lies on eyeless side.
What’s dextral?
Flatfish is on their left side. Right side up.
What’s sinistral?
Flatfish is on their R side.
