a system of tactile sense organs

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Across
  1. 9. muscularchamberthatpumpsbloodoutoftheheartandintothecirculatorysystem
  2. 10. anothertermfortailfin
  3. 11. acommoncavityattheendofthedigestivetractforthereleaseofbothexcretoryandgenita
  4. 12. isataxonofthebonyfisheswhosemembersareknownaslobe-finnedfishes
  5. 13. Theoperculumisthecorticalstructurewhichformsthelidovertheinsularcortex
  6. 16. aneel-likeaquaticjawlessvertebratethat hasasuckermouthwithhornyteethandaraspingtongue
  7. 17. thepectoralfinsarethetwofinslocatedonthesidesofafish
  8. 18. SkatesarecartilaginousfishbelongingtothefamilyRajidae
  9. 19. asystemoftactilesenseorgans
Down
  1. 1. agas-filledsacpresentinthebodyofmanybonyfishes,usedtomaintainandcontrol
  2. 2. Actinopterygii,membersofwhichareknownasray-finnedfishes,isacladeofthebony
  3. 3. acartilaginousskeletalrodsupportingthebodyinallembryonicandsomeadultchordateanimals
  4. 4. Thebonyorcartilaginousbonesthatsupportthebase ofthedorsalfininfisharecalledpterygiophores
  5. 5. isanorganisminwhichinternalphysiologicalsourcesofheatare ofrelativelysmallorofquitenegligibleimportanceincontrollingbodytemperature
  6. 6. asmallelongatedmarineinvertebratethatresemblesafishbutlacksjawsandobvioussense organs.Lanceletspossessanotochordandareamongthe mostprimitivechordates
  7. 7. hagfish,oftheclassmyxiniandorder Myxiniformes,areeel-shaped,slime-producingmarinefish
  8. 8. Batoideaisasuperorderofcartilaginousfishes
  9. 14. spiny,toothlikeprojectionsseenonlyincartilaginousfishes
  10. 15. isamarineinvertebrateanimal