Seasonal abundance 



Gut contents 



Fish control agents 



Lethal environmental limits 

 Venomous fish 

 Anatomy 

 Biochemistry 

 Function 

 Biochemistry 

 Attacks on man 

 Source of pharmaceuticals 



Bibliography 

 Acanthobalis 



Genotype 

 Alexandrinum 

 Genotype 

 Check list 

 Cyclobatis 

 Genotype 

 Check list 

 Dasyatis 

 Genotype 

 Synonymy 

 Check list 

 Popular names 

 Cestoda 



Parasite systematics 

 Dasyatis akajei 

 Heart musculature 



Muscular electrophysiology 

 Calcium 



In vitro techniques 

 Thyroid 



Ultrastructure 

 Heart 



Experimental analysis 



Muscular electrophysiology 

 Stomach 



Hyaluronidase 



Comparative enzymology 

 Juxtaglomerul 

 Anatomy 

 Function 

 Dasyatis 

 Faunal list 



San Andres I 

 Morphometries 

 Lipid and fatty acid co 

 Central nervous syste 

 Biochemistry 

 Axial skeletal muscles 

 Electricity production 

 Locomotion 



Description and 

 Metencephalon 

 Anatomy 

 Histology 

 Monogenea 



Parasite life history 

 Carangidae 

 Caran.x ruber 

 As commensal 

 Seasonal abundance 

 Gut contents 

 Dasyatis centroura 

 Viviparity 



Sexually dimorphic size 

 Vertical distribution 

 Populations 

 Gut contents 

 Habitat preference 

 Migrations 

 Dasyatis kuhii 

 Distribution 



Dasyatis margarita 

 Fish communities 

 Acanthocephala 



Parasite systematics 

 Habitat preference 

 Salinity 

 Dasyatis pastinaca 



General structure and t 

 Descriptive evolution 

 Brain 



Allometry 



Weight length relal 

 Vertical distribution 

 Distribution 

 Hydrostatics 

 Biochemistry 

 Function 



809085 

 809085 

 805462 

 805123 



807216 



806396 



806396 

 806396 

 806396 

 806396 



804040 



806094 

 804362 



806003 

 805068 

 804914 



804187 

 804187 



804187 

 804187 

 804187 



806740 

 805861 



Hydrodynamics 



Gut contents 



Sound production 



Myxosporidiosis 

 Dasyatis sabina 



Venomous fish 

 Dasyatis sayi 



Monogenea 



Parasite life history 



Avoidance responses 

 Trawling 

 Dasyatis uarnak 



Visceral skeleton 

 Anatomy 



Skull 



Anatomy 

 Dasyatis violacea 



Cestoda 



Parasite systematics 



Attacks on man 

 Disceus strogylopterus 



Redescription 



Synonymy 



Distribution 

 Disceus thayeri 



Invalidation 



Elipesurus 



Invalidation 

 Elipesurus spinicauda 



Synonymy 



Invalidation 



Validation 

 Gymnura japonica 



Distribution 



Gymnura marmorata 

 Cestoda 



Parasite systematics 

 Gymnura micrura 

 Cestoda 



Parasite systematics 

 Himantura schmardae 

 Distribution 

 Attacks on man 

 Himantura uarnak 

 Pectoral fin muscles 

 Anatomy 

 Function 

 Hypolopbus 



Cretaceous 

 Myledaphus bi par tit us 

 Synonymy 



805364 

 807995 

 807242 

 807979 



805404 



Distribution 

 Potamotrygon 

 Coloration 

 Habitat preference 

 Potamotrygon brachyurus 



Synonymy 

 Potamotrygon castexi 

 New species 

 Distribution 

 Potamotrygon hystrix 

 Identifying characters 

 Lectotype 

 Nematoda 



Parasite systematics 

 Potamotrygon motoro 



General structure and behavior 

 Pteropiatea poecilura 

 Cestoda 



Parasite systematics 

 Taeniura lymna 

 Distribution 

 Habftat preference 

 Trygon 



Seasonal abundance 

 Trygon aiereba 



Genotype 

 Trygon carnea 

 List of types 

 Iconotype 

 Trygon pastinaca 

 Pituitary biood supply 

 Histology 



Descriptive evolution 

 Nematoda 



Incidence of infection 

 Distribution of infection 

 Intensity of infection 

 Trygon strongylopterus 

 Invalidation 



807979 

 807937 

 808753 

 805466 



804236 



804362 

 807764 



806357 

 806356 



807164 

 807164 

 807164 



803573 

 807164 

 803573 



Dasyatidae 

 (continued) 



804853 



804735 



805815 

 805815 

 805815 



807167 

 807167 



805112 

 804016 



807752 

 807164 



805470 

 805470 



179 



