PINEAL 

 ALLOMETRY 



LARVA 

 INFRASPECIFIC VARIATION 



MORPHOMETRICS 

 LARVA 

 ZOOGEOGRAPHY 

 DISTRIBUTION 

 HABITAT PREFERENCE 



LAMPETRA PLANERI X 

 LAMPETRA MARIAE X 

 MORPHOMETRICS 

 TESTIS 



DEVELOPMENT 

 NATURAL HYBRIDIZATION 

 ISOLATING MECHANISMS 

 LAMPETRA TRIDENTATA 

 LIVER 



BIOCHEMISTRY 



OXIDATIVE METABOLISM 

 NITROGEN METABOLISM 

 YOLK 



DESCRIPTIVE EVOLUTION 

 PROTEIN SPECIFICITY 

 VERTICAL DISTRIBUTION 

 LARVA 



DAMS AND BARRIERS 

 CIRCADIAN RHYTHMS 

 LARVA 



DAMS' AND BARRIERS 

 MAYOMYZON PIECKOENSIS 

 NEW SPECIES 

 NEW GENUS 

 RELATIONSHIPS 

 CARBONIFEROUS 

 SKELETON 

 MORDACIA 



RELATIONSHIPS 

 SYNONYMY 

 MORDACIA ACUTIDENS 



INVALIDATION 

 MORDACIA LAPICIDA 



INVALIDATION 

 MORDACIA MORDAX 

 RELATIONSHIPS 

 MERISTICS 

 MORPHOMETRICS 

 PINEAL 



EXPERIMENTAL ANALYSIS 

 ORAL TEETH 



DEVELOPMENT 

 METAMORPHOSIS 



HEMOGLOBIN 

 CARYOTYPE 



LARVA 

 GEOGRAPHIC VARIATION 

 DISTRIBUTION 

 CIRCADIAN RHYTHMS 

 COLOR CHANGE 

 LARVA 

 FEEDING 

 ANADROMY 

 MORDACIA PRAECOX 

 NEW SPECIES 

 RELATIONSHIPS 



MERISTICS 

 MORPHOMETRICS 



ORAL TEETH 



DEVELOPMENT 

 SEXUALLY DIMORPHIC FINS 

 LIFE HISTORY 

 METAMORPHOSIS 



HEMOGLOBIN 

 GEOGRAPHIC VARIATION 

 DISTRIBUTION 

 FEEDING 

 ANADROMY 

 PETROMYZON FLUVIATIUS 



PASSIVE ELECTRICAL PROPERTIES 



CARTILAGE 

 NOTOCHORD 



ANATOMY 



PASSIVE ELECTRICAL PROPERTIES 

 PETROMYZON MARINUS 

 IDENTIFYING CHARACTERS 

 LDH ISOENZYMES 



INHERITANCE 

 PASSIVE ELECTRICAL PROPERTIES 



CARTILAGE 

 NOTOCHORD 



ANATOMY 



PASSIVE ELECTRICAL PROPERTIES 

 HEMOGLOBIN 



STRUCTURE 

 SERUM PROTEINS 

 IMMUNOLOGICAL REACTIONS 

 HEMODYNAMICS 



BRAIN 



CHOROID PLEXUS 

 BILE 



BIOCHEMISTRY 

 FECUNDITY 



GENERAL EMBRYOLOGY 

 MEASURING LARVAL ABUNDANCE 



801697 

 801896 



801896 

 802369 

 802369 

 803123 

 803124 



801899 

 801899 

 801899 



800565 

 803207 



802967 



803382 

 803382 

 803382 

 803382 

 803382 



801042 

 801042 



801042 



801042 



801321 

 801366 

 801366 



801739 



801042 



801321 



803122 

 801366 

 801042 



801739 

 801366 

 801366 



801492 

 801321 

 801492 

 801366 

 801366 

 801492 



801042 

 801492 

 801492 



801321 

 801366 

 801042 

 801366 

 801366 



801165 



801165 

 802244 

 803104 

 801165 



801165 



800231 

 801812 

 801160 



803133 



802953 

 802782 

 802190 

 802732 



DISTRIBUTION 



POPULATION CHANGES 

 POPULATION BALANCE 



EXPANSION OF RANGE BY MAN 

 ORIENTATION TO FLOATING OBJECTS 

 HABITAT PREFERENCE 



NATURAL MORTALITY 



EGG 

 LARVA 

 PREDATOR CONTROL 



LARVA 



PTERASPIDOMORPHA 

 RELATIONSHIPS 



MOUTH 



DEVELOPMENT 



DESCRIPTIVE EVOLUTION 

 CAUDAL FIN 



DESCRIPTIVE EVOLUTION 

 SKELETON 



ANATOMY 

 ARMOR 

 ANATOMY 



DEVELOPMENT 



DESCRIPTIVE EVOLUTION 

 GILL ARCHES 

 ANATOMY 



DESCRIPTIVE EVOLUTION 

 NOSE 



ANATOMY 



DEVELOPMENT 



DESCRIPTIVE EVOLUTION 

 DESCRIPTIVE EVOLUTION 

 CONVERGENCE AND PARALLELISM 



DREPANASPIDIFORMES 



RELATIONSHIPS 



GENERAL STRUCTURE AND BEHAVIOR 

 DEVONIAN 

 EVOLUTION 

 DREPANASPIS 

 ODONTODES 

 ANATOMY 



DEVELOPMENT 



DESCRIPTIVE EVOLUTION 

 PSAMMOLEPIS 

 ODONTODES 

 ANATOMY 



DEVELOPMENT 



DESCRIPTIVE EVOLUTION 



PTERASPIDIFORMES 



ALTHASPIS LEACHI 



SYNONYMY 



DEVONIAN 



PALEOECOLOGY 

 LYKTASPIS 



NEW GENUS 



DEVONIAN 

 LYKTASPIS NATHORSTI 



MOUTH 



ROSTRUM 



EXTERNAL SKELETON 

 PSEPHASPIS 



RELATIONSHIPS 



DIAGNOSIS 



SYNONYMY 

 PSEPHASPIS IDAHOENSIS 



NEW SPECIES 



GROSS EXTERNAL ANATOMY 



DEVONIAN 

 PSEPHASPIS WILLIAMSI 



GROSS EXTERNAL ANATOMY 



THELODONTOMORPHA 



PHLEBOLEPIS ELEGANS 

 RELATIONSHIPS 

 GROSS EXTERNAL ANATOMY 

 SILURIAN 



SCALES 



LATERAL LINE PORES AND CANALS 

 TURINIA PAGEI 

 DEVONIAN 



800703 PETROMYZONTOMORPHA 



802244 (CONTINUED) 



802392 



802392 LAMPETRA 



802848 TO 



802244 PETROMYZON 



803124 



PTERASPIDOMORPHA 

 802782 

 800596 

 801979 THELODONTOMORPHA 



802621 

 803389 

 803416 



803389 

 802621 

 803389 



803408 

 803389 



803389 

 802621 

 802620 



801019 

 801019 

 801019 

 801019 



801754 

 801754 

 801754 



803392 

 803392 



803392 

 803392 

 803392 



801563 

 801563 

 801563 



801563 

 801563 

 801563 



ACANTHODII 



RELATIONSHIPS 



803393 

 803393 

 801556 

 803393 

 801556 

 801556 



801754 



802621 

 803400 



