Poeciliidae 

 (continued' 



Poecilia formosa 



Poecilia reticulata 



314 



Poecilia 



Relationships 

 Serum proteins 

 Polymorphism 

 Biochemistry 

 Artificial hybridization 



Zoogeography 

 Aggressive behavior 

 Courtship 

 Mating 

 Poecilia formosa 

 Lipid metabolism 



Glucose-6-phosphate dehydrogenase 

 Axial skeletal muscles 



Biochemistry 

 Liver 



Biochemistry 

 Gynogenesis 

 Caryotype 



Descriptive evolution 



Triploidy 



Descriptive evolution 

 Population structure 

 Poecilia formosa X 

 Poecilia sphenops X 

 Artificial hybridization 

 Triploidy 

 Poecilia ladphma 



Ion and water relationships 



Experimental analysis 

 Color variety 

 Melatonin 

 Pigment cells 

 Effect on fish 

 Neurohypophysis 

 Anatomy 

 Function 

 Adenohypophysis 

 Anatomy 

 Histology 

 Function 

 Pars intermedia 

 Anatomy 

 Cytology 



Experimental analysis 

 Corticotroph 

 Cytology 



Experimental analysis 

 Thyrotroph 

 Cytology 



Experimental analysis 

 Gonadotroph 

 Cytology 



Experimental analysis 

 Growth hormone cell 

 Cytology 



Experimental analysis 

 Sexual dimorphism 

 Prolactin cell 

 Histology 

 Cytology 



Experimental analysis 

 Development 

 Acid phosphatase 

 L'ltrastructure 



Experimental analysis 

 Enzyroology 

 Gas bladder 



Use in systematics 

 Anatomy 

 Function 

 Ovarian cycles 



Description and occurrence 

 Gonadotroph 

 Caryotype 

 Salinity 



Effect on fish 

 Prolactin cell 



Expansion of range by man 

 Habitat preference 



Juvenile 

 Mating 



Effects of isolation 

 Mating 



Aggressive behavior 

 Insecticide pollutants 

 Dieldrin 



Effect on fish 



Lethal environmental limits 

 Salinity- 

 Experimental analysis 



806268 

 805410 

 805410 

 S06268 

 806142 

 806142 

 806142 



804792 

 805252 

 804792 

 805252 



805844 



S09070 

 809070 



809070 

 809070 



809070 

 B0907C 



809070 

 809070 

 809070 



807954 



809070 



805341 

 806284 

 803758 



Lethal environmental limits 



Use as test animal 

 Insecticide pollutants 

 Poecilia latipinna X 

 Poecilia reticulata X 



Hybrid sterility 

 Poecilia velifera X 

 Hybrid sterility 

 Poecilia melanogaster 



Isolating mechanisms 

 Poecilia mexicana 

 S = r^~ "■: :±:r.5 

 Polymorphism 

 3:: :he— :>:r. 

 Caryotype 



Introgressive hybridization 

 Poecilia reticulata 



General structure and behavior 

 Body form 

 Inheritance 



Experimental analysis 

 Radioactivity 

 Meristics 

 Vertebrae 



Experimental analysis 



Radioactivity 



Morphometries 

 Caudal fin 

 Inheritance 

 Abnormality 

 Skin 



Histology 



Ultrastructure 

 Function 

 Ultrastructure 

 Pigment cells 

 Color change 

 Ultrastructure 

 Function 

 Color variety 

 Inheritance 

 Scales 



Ultrastructure 

 Fins 



Inheritance 

 Abnormality 

 Reissner fiber SCO complex 

 Anatomy 



Descriptive evolution 



Change with age 

 Cytology 

 Telencephalon 

 Cell division 

 Cytology 

 Change with age 

 Diencephalon 



Paraventricular organ 

 Histology 

 Biochemistry 

 Development 

 Optic tectum 

 Histology 



Function 

 Regeneration 

 Histology- 

 Change with age 

 Spinal cord 

 Anatomy 



Descriptive evolution 

 Abnormality 

 Ultrastructure 

 Color vision 

 Pineal 

 Anatomy 

 Histology 

 Function 

 Neuroendocrine substances 

 Effect on fish 



Urinogenital muscles 

 Adenohypophysis 

 Spermatogenesis 



Experimental analysis 

 Gonadotropin 

 Effect on fish 

 Ovary 

 Oogenesis 

 Superfetation 

 Mating 

 Thyroid hormone 

 Effect on fish 

 Activity patterns 



806978 

 807295 



805410 

 805410 

 805410 



806268 

 804792 

 806268 



805255 

 805870 

 805255 

 805870 



804578 



806824 

 806824 

 804341 



808639 

 808639 

 803830 

 803831 



804341 



805603 

 805603 



807323 

 807323 



803860 



804487 

 805196 

 805196 



804487 



