Fishes of the WorldWiley, 1984 - 523 strán (strany) |
Vyhľadávanie v obsahu knihy
Výsledky 1 - 3 z 42.
Strana 25
... larvae possess gill slits , dorsal hollow nerve cord , noto- chord , and a muscular , unsegmented tail ; the adults are usually sessile filter feeders and usually lack the preceding features . Feeding is by means of a mucous trap inside ...
... larvae possess gill slits , dorsal hollow nerve cord , noto- chord , and a muscular , unsegmented tail ; the adults are usually sessile filter feeders and usually lack the preceding features . Feeding is by means of a mucous trap inside ...
Strana 100
... larva . A normal caudal fin is absent but there is a postcaudal filament . The dorsal fin is short , consisting of about 10 rays , and is located in the anterior half of the body . Older larvae have small pelvic fins . The larvae ...
... larva . A normal caudal fin is absent but there is a postcaudal filament . The dorsal fin is short , consisting of about 10 rays , and is located in the anterior half of the body . Older larvae have small pelvic fins . The larvae ...
Strana 102
... larvae , more so than among the adults . Selective pressures on larval characters have generally been different than on adult characters ; the larvae and adults give the appearance of having evolved indepen- dently . Problems still ...
... larvae , more so than among the adults . Selective pressures on larval characters have generally been different than on adult characters ; the larvae and adults give the appearance of having evolved indepen- dently . Problems still ...
Obsah
INTRODUCTION | 1 |
PHYLUM CHORDATA | 21 |
Subdivision Halecomorphi | 86 |
Autorské práva | |
4 zvyšných častí nezobrazených
Časté výrazy a frázy
120 ARCTIC CIRCLE 40 TROPIC adipose fin Africa anal fin anal fin rays ANTARCTIC CIRCLE ANTARCTIC CIRCLE 60 Australia barbels Body elongate bone branchiostegal rays Bull catfishes caudal fin cladistic classification Copeia ctenoid dorsal and anal dorsal fin dorsal fin rays EQUATOR 0 20 eyes Family fin absent fin base fin spines fin usually fin with three fishes five soft rays fossil Four genera four species fresh water freshwater genera genera e.g. genus gill openings Gosline Greenwood Indian Indo-Pacific Indo-West Pacific known lateral line lateral line scales lower jaw Marine maxilla Maximum length mouth North oceans Order Ostariophysi pectoral fin pelvic fins Perciformes Pisces premaxilla protractile recognized Rosen snout soft rays South America southern spine and five spinous Springer SUBFAMILY Suborder Superfamily Superorder swim bladder teeth Three genera three species three spines TRIBE TROPIC OF CANCER TROPIC OF CAPRICORN upper jaw ventral vertebrae Zealand Zool