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Comparative Vertebrate Anatomy > Perch > Flashcards

Flashcards in Perch Deck (18):
1

lateral fins that improve the swimming ability of the perch

pectoral fin

2

fin ventral to the pectoral fin

pelvic fin

3

lies along the mid ventral line opposite posterior dorsal fin

anal fin

4

supported by soft fin rays arranged in a homocercal tail

caudal fin

5

ventrally tapered bony element that supports fin rays

radial pterygiophore

6

ossified fin rays

fin spine

7

may bear ribs, hemal, and neural spines

vertebrae

8

dorsal projections of vertebrae

neural spine

9

attached ligamentously to posterior surface of the more anterior ventral ribs

dorsal rib

10

form in myosepta adjacent to body cavity and extend ventrally

ventral rib

11

extension of caudal region past trunk

caudal peduncle

12

small bone connecting lacrimal and premaxilla, looks like upper lip in external anatomy

maxilla

13

bone bearing teeth

premaxilla

14

lower jaw

mandible

15

anterior to each eye

naris

16

forms distinct ridge along scales on trunk and caudal peduncle

lateral line

17

large circular opening anterior to anal fin

anus

18

lies immediately posterior to anus

urogenital aperture