Cyprinidae 



Leuciscus cephaJus 

 Pangasiidae 



Pangasius pangasius 

 Salmonidae 



Salmo trutta 

 Function 



Teleostei 

 Snout 



Zoarcidae 



Lycodopsis pacifica 

 Permanent sexual coloration 

 Gobiidae 

 Cepolidae 



Acanthocepola limbata 

 Cepola abbreviata 

 Cyclopteridae 



Eumicrotremus orbis 

 Development 

 Cichlidae 



Pseudotropheus auratus 

 Pseudotropheus fuscus 

 Pseudotropheus zebra 

 Pigment chemistry 

 Labridae 



Crenilabrus tinea 

 Adenohypophysis 



Experimental analysis 

 Poeciliidae 



Poeciiia reticulata 

 Testis 



Experimental analysis 

 Cichlidae 



Tilapia leucosticta 

 Androgens 



Experimental analysis 

 Centrarchidae 



Lepomis gibbosus 

 Lepomis megalotis 

 Poeciliidae 



Poeciiia reticulata 

 Developmental analysis 

 Poeciliidae 



Poeciiia reticulata 

 Change with age 



Scaridae 

 Infraspecific variation 

 Populations 



Cyprinodontidae 



Aphyosemion bivittatum 

 Procatopus nototaenia 

 Living space 



Experimental analysis 

 Centrarchidae 



Lepomis megalotis 

 Seasonal sexual coloration 

 Gasterosteidae 



Gasterosteus wheatlandi 

 Gobiidae 

 Serranidae 



Paralabrax clathratus 

 Catostomidae 



Catostomus platyrhynchus 

 Cyprinidae 



Notropis xantbicara 

 Oxygaster bacaila 

 Ptychocheilus oregonensis 

 Richardsonius egregius 

 Zacco platypus 

 Function 



Experimental analysis 

 Gasterosteidae 



Gasterosteus aculeatus 

 Adaptive evolution 

 Inheritance 

 Gasterosteidae 



Gasterosteus aculeatus 

 Geographic variation 

 Gasterosteidae 



Gasterosteus aculeatus 

 Temperature 



Experimental analysis 

 Gasterosteidae 



Gasterosteus aculeatus 



Eight 



Experimental analysis 

 Gasterosteidae 



Gasterosteus aculeatus 



Sexually dimorphic skin 



Cyclopteridae 



Eumicrotremus orbis 



808441 

 808572 

 808219 

 807979 



807500 



806134 

 806134 

 806134 



806248 

 806248 



806561 

 807610 



807795 



808404 

 806901 

 807786 

 808730 

 806232 



Brood pouch 



Ultrastructure 

 Function 



Syngnathidae 



Hippocampus kuda 

 Prolactin 



Experimental analysis 

 Syngnathidae 

 Hippocampus 

 Nuptial tubercles 

 Cyprinodontidae 

 Fundulus catenatus 

 Fundulus stellifer 

 Catostomidae 



Catostomus platyrhynchus 

 Cyprinidae 



Leuciscus leuciscus 

 Notropis ariommus 

 Notropis telescopus 

 Zacco platypus 

 Anatomy 

 Percidae 

 Characiforrnes 

 Cypriniformes 

 Cyprinidae 

 Gyrinocheilidae 

 Gonorynchiformes 

 Salmoniformes 

 Sexually dimorphic teeth 

 Rajidae 



Raja montagui 

 Raja naevus 

 Scyliorhinidae 



Galeus piperatus 

 Gobiidae 



Gobiosoma polyporosum 

 Change with age 

 Gobiidae 



Evorthodus lyricus 

 Sexually dimorphic fins 

 Clinidae 



Paraclinus fehlmanni 

 Cichlidae 



Haplochromis 

 Cyprinidae 



Richardsonius egregius 

 Mormyridae 

 Argentinidae 



Argentina sphyraena 

 Function 



Developmental analysis 

 Poeciliidae 



Poeciiia velifera 

 Androgens 

 Poeciliidae 



Poeciiia velifera 

 Developmental analysis 

 Poeciliidae 

 Xiphophorus 

 Descriptive evolution 

 Poeciliidae 

 Xiphophorus 

 Anal fin 



Dactyloscopidae 



Dactyloscopus byersi 

 Cyprinodontidae 

 Fundulus catenatus 

 Fundulus stellifer 

 Cyprinidae 



Barbus kolus 

 Pantodontidae 



Pantodon buchholzi 

 Anatomy 

 Cyprinidae 



Zacco platypus 

 Development 

 Cyprinidae 



Zacco platypus 

 Seasonal changes 

 Embiotocidae 



Ditrema temmincki 

 Ditrema viridis 

 Pectoral fins 

 Cobitidae 



Cobitis sibinca 

 Cobitis taenia 

 Caudal fin 

 Allometry 

 Poeciliidae 

 Xiphophorus 

 Androgens 



Experimental analysis 

 Belontiidae 



Trichogaster leeri 



804862 

 804862 



807795 

 806041 

 805972 

 807614 

 807614 

 806232 



805095 

 807617 



806776 

 806349 



808571 

 804528 



806224 

 806224 



Reproductive system 



(continued) 



Sexual dimorphism 



559 



