| gptkbp:instanceOf | gptkb:Animalia gptkb:jawless_fish
 
 | 
                        
                            
                                | gptkbp:blood | isotonic with seawater 
 | 
                        
                            
                                | gptkbp:braincase | present 
 | 
                        
                            
                                | gptkbp:color | pink, gray, or brown 
 | 
                        
                            
                                | gptkbp:commonName | gptkb:slime_eel 
 | 
                        
                            
                                | gptkbp:conservationStatus | varies by species 
 | 
                        
                            
                                | gptkbp:defenseMechanism | slime production 
 | 
                        
                            
                                | gptkbp:diet | carrion scavenger
 
 | 
                        
                            
                                | gptkbp:distribution | worldwide 
 | 
                        
                            
                                | gptkbp:eggColor | large, yolky eggs 
 | 
                        
                            
                                | gptkbp:eyeColor | rudimentary 
 | 
                        
                            
                                | gptkbp:family | gptkb:Myxinidae 
 | 
                        
                            
                                | gptkbp:features | can tie itself in knots 
 | 
                        
                            
                                | gptkbp:fertilization | external 
 | 
                        
                            
                                | gptkbp:firstAppearance | about 300 million years ago 
 | 
                        
                            
                                | gptkbp:genomeSequenced | yes 
 | 
                        
                            
                                | gptkbp:habitat | gptkb:marine 
 | 
                        
                            
                                | gptkbp:immuneSystem | primitive 
 | 
                        
                            
                                | gptkbp:kingdom | gptkb:Animalia 
 | 
                        
                            
                                | gptkbp:larvalStage | absent 
 | 
                        
                            
                                | gptkbp:lifespan | up to 40 years 
 | 
                        
                            
                                | gptkbp:mainEconomicActivity | leather (eel skin) 
 | 
                        
                            
                                | gptkbp:market | gptkb:East_Asia 
 | 
                        
                            
                                | gptkbp:notableFeature | produces slime has skull but no vertebrae
 lacks jaws
 
 | 
                        
                            
                                | gptkbp:notochord | present throughout life 
 | 
                        
                            
                                | gptkbp:numberOfSpecies | about 76 
 | 
                        
                            
                                | gptkbp:order | gptkb:Myxiniformes 
 | 
                        
                            
                                | gptkbp:osmoticRegulation | minimal 
 | 
                        
                            
                                | gptkbp:phylum | gptkb:Chordata 
 | 
                        
                            
                                | gptkbp:predators | few due to slime 
 | 
                        
                            
                                | gptkbp:relatedTo | gptkb:fish 
 | 
                        
                            
                                | gptkbp:reproduction | oviparous 
 | 
                        
                            
                                | gptkbp:respiration | gills 
 | 
                        
                            
                                | gptkbp:respiratoryOpenings | 1-16 pairs of gill openings 
 | 
                        
                            
                                | gptkbp:scientificName | gptkb:Myxini 
 | 
                        
                            
                                | gptkbp:sensoryOrgan | barbels around mouth 
 | 
                        
                            
                                | gptkbp:shape | eel-like 
 | 
                        
                            
                                | gptkbp:size | typically 18-36 inches 
 | 
                        
                            
                                | gptkbp:skeletonType | cartilaginous 
 | 
                        
                            
                                | gptkbp:skin | scaleless 
 | 
                        
                            
                                | gptkbp:taxonRank | gptkb:class 
 | 
                        
                            
                                | gptkbp:teeth | keratinous teeth on tongue 
 | 
                        
                            
                                | gptkbp:usedFor | leather goods food in Korea
 
 | 
                        
                            
                                | gptkbp:vertebrae | absent 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Myxini 
 | 
                        
                            
                                | gptkbp:bfsLayer | 6 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | hagfish 
 |