Alepocephaloidei 

 (continued) 



Argentinoidei 

 Argentinidae 

 Bathylagidae 



Pectoral girdle 



Anatomy 

 Pelvic girdle 



Anatomy 

 Visceral skeleton 

 Anatomy 

 Function 

 Skull 



Anatomy 

 Function 



Descriptive evolution 

 Lateral line pores and canals 

 Nose 



Anatomy 

 Narial water-moving devices 

 Gut 



Epibranchial organ 



Bathyprion danae 



Visceral skeleton 



Anatomy 



Function 



Leptoderma lubrictim 



Distribution 

 Photostyius pycnoptems 

 Meristics 

 Morphometries 

 Adipose fin 

 Vertebrae 

 Acentrous 

 Function 

 Distribution 

 Sea/sis 



Vertical distribution 

 Distribution 

 Xenodermichthys copei 



Distribution 

 Xenodermichthys socialis 

 List of types 



University of Oslo 

 Visceral skeleton 

 Anatomy 

 Function 

 Skull 



Anatomy 

 Function 



Descriptive evolution 

 Argentinidae 

 Relationships 

 Key 

 Gill rakers 



Meristic morphometry techniques 

 Distribution 



Larva 

 Population changes 



Larva 

 Population density 



Larva 

 Argentina 

 Relationships 

 Key 



Meristics 

 Morphometries 

 Gas bladder 

 Coloration 

 Vertical distribution 

 Distribution 



Gut contents 

 Argentina aliceae 



New species 



Pectoral fins 

 Abnormality 



Vertical distribution 



Gut contents 

 Argentina brucei 



New species 



Vertical distribution 

 Argentina cyclomorpha 



Sagitta 



Miocene 

 Argentina euchus 



RedcscripUon 



Vertical distribution 

 Argentina fragilis 



Sagitta 



Miocene 

 Argentina georgei 



New species 



Vertical distribution 

 Argentin. 



Otoliths 



Miocene 



806350 

 806350 



806350 

 806350 

 806350 



806350 

 806350 

 806350 

 806350 



806350 



803745 



807606 

 807606 

 807606 



807606 

 807606 



806736 

 806736 



808661 



807694 



808314 



808314 



808661 

 808661 

 808661 



808661 



808661 

 806736 

 806736 

 807997 

 808661 

 807997 



808661 



808661 

 808661 

 808661 



808661 



808661 



806684 

 806684 



808661 

 808661 



804470 

 804470 



Argentina semifasciata 

 Mass mortalities 

 Seasonal abundance 

 Temperature 

 Argentina sialis 



Vertical distribution 

 Distribution 

 Argentina si/us 



Vertical distribution 

 Trematoda 



Incidence of infection 



Parasite life history 

 Digenea 



Parasite life history 

 Change with age 

 Incidence of infection 

 Distribution 

 Populations 

 Identification 

 Digenea 



Incidence of infection 

 Argentina sphyraena 

 Meristics 

 Morphometries 

 Vertebrae 



Abnormality 

 Fin skeletal supports 



Meristics 

 Dorsal fin skeleton 

 Anatomy 



Development 

 Mesentery 



Lipid and fatty acid content 

 Seasonal changes 

 Ovarian cycles 

 Testicular cycle? 

 Rate of growth 

 Allometry 



Geographic variation 

 Vertical distribution 



Distribution 

 Egg 



Seasonal changes 

 Larva 



Seasonal changes 

 Gut contents 



Seasonal changes 

 Natural mortality 

 Argentina stewarti 

 New species 

 Vertical distribution 

 Argentina striata 

 Redescription 

 Caudal skeleton 

 Anatomy 



Descriptive evolution 

 Vertical distribution 

 Glossanodon 



Key 

 Glossanodon mildredae 

 New species 

 Relationships 

 Glossanodon polli 

 Distribution 

 Bathylagidae 

 Caryotype 

 Vertical distribution 

 Orcadian rhythms 

 Distribution 

 Population changes 



Larva 

 Balhylagus 



Vertical distribution 

 Distribution 

 Balhylagus milleri 



Sex chromosomes 

 Balhylagus ochotensis 



Sex chromosomes 

 Balhylagus pacificus 



Relationships 

 Balhylagus sencla 



Miocene 

 Balhylagus st/lbius 

 Relationships 

 Axial skeleton 



Anatomy 

 Pectoral girdle 



Anatomy 

 Visceral skeleton 

 Anatomy 



803588 

 803594 

 803594 



807399 

 807399 

 807903 



803617 

 808252 



803868 

 804534 

 804534 

 803868 

 803617 

 803617 

 803617 

 807995 

 803880 



805664 



805664 



808661 

 808661 



804485 

 804485 

 807685 

 807177 

 807685 

 807685 

 807685 

 807685 



404 



