Fishes of the World |
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Strana vi
A dagger denotes those at the level of suborder or higher that do not contain
living species . Users who find the number of categories given to be a
cumbersome proliferation may wish to use only class , order , suborder , and
family ( as given ...
A dagger denotes those at the level of suborder or higher that do not contain
living species . Users who find the number of categories given to be a
cumbersome proliferation may wish to use only class , order , suborder , and
family ( as given ...
Strana 24
The class contains two orders with about 20 living species . Order
CEPHALODISCA . Zooids free ; no true colonies ; living forms with four to nine
pairs of arms with tentacles . Contains the fossil Eocephalodiscus and
Pterobranchites and the ...
The class contains two orders with about 20 living species . Order
CEPHALODISCA . Zooids free ; no true colonies ; living forms with four to nine
pairs of arms with tentacles . Contains the fossil Eocephalodiscus and
Pterobranchites and the ...
Strana 196
Many species have the interesting habit of hiding in living animals . Some live in
sea cucumbers and eat the cucumber ' s internal organs in a parasitic fashion . (
They and some species of the unrelated Trichomycteridae are the only two ...
Many species have the interesting habit of hiding in living animals . Some live in
sea cucumbers and eat the cucumber ' s internal organs in a parasitic fashion . (
They and some species of the unrelated Trichomycteridae are the only two ...
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Obsah
INTRODUCTION | 1 |
PHYLUM CHORDATA | 21 |
Subdivision Halecomorphi | 86 |
Autorské práva | |
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Časté výrazy a frázy
absent adipose fin adults Africa anal fin ANTARCTIC ARCTIC areas Atlantic Australia barbels body bone brackish branched branchiostegal rays Bull CAPRICORN caudal fin characters CIRCLE classification closely compressed continuous cycloid derived developed Distribution dorsal and anal dorsal fin eastern eight elongate EQUATOR extending eyes Family fin rays fishes five fossil four freshwater genera e.g. genus gill openings given gives head Indian known lack lateral line living lower Marine maxilla Maximum length mouth nine North occur oceans Order organ origin Pacific pairs pectoral fin pelvic fins placed plates present primarily primitive probably rarely recognized region relationships relatively Rosen scales seas separate seven short side similar single snout soft rays South America southern species spines SUBFAMILY Suborder swim bladder tail teeth teleosts Three genera TRIBE tropical usually vertebrae western Zealand Zool