SUPERCLASS PISECS PART 1 - CLASS CHONDRICHTHYES (ELASMOBRANCHII)

SUBCLASS 1 - SELACHII

ORDER 1 - PLEUROTREMATA (TRUE SHARKS)



SCOLIODON - DOG FISH





SQUALUS





STEGOSTOMA - ZEBRA SHARK






SPHYRNA - HAMMER HEADED SHARK






RHINCODON - THE WHALE SHARK




ORDER 2 HYPOTREMATA (SKATES AND RAYS)



RAJA - SKATE






RHINOBATUS - GUITAR FISH







PRISTIS - THE SAWFISH






TRYGON - STING RAY







TOPEDO - ELECTRIC RAY






MYLIOBATIS - THE EAGLE RAY

SUBCLASS 2 - HOLOCEPHALII (RAT FISHES OR CHIMAERA)

HYDROLAGUS - CHIMAERA

CLASS - CYCLOSTOMATA

  

PETROMYZON - LAMPREY




LAMPETRA




MYXINE - HAGFISH

SUBPHYLUM - CEPHALOCHORDATA

BRANCHIOSTOMA






ASYMMETRON

SUBPHYLUM - UROCHORDATA

ASCIDIA





CIONA





PHALLUSIA





CLAVELINA





HERDMANIA





BOTRYLLUS





MOLGULA





PYROSOMA





DOLIOLUM





SALPA





OIKOPLEURA





KOWALEVSKIA

PHYLUM - CHORDATA

CHORDATA - CLASSIFICATION OUTLINE BASIC

PHYLUM CHORDATA CAN BE DIVIDED INTO TWO GROUPS.

1 PROTOCHORDATES - 1 UROCHORDATA
                                           2 CEPHALOCHORDATA


2 EUCHORDATES -  1 VERTEBRATA - 1 AGNATHA - CYCLOSTOMATA



                                                                    2 GNATHOSTOMATA - PISCES AND TETRAPODA
                                                                     (AMPHIBIA, REPTILIA, AVES, MAMMALIA)

(SUB)PHYLUM - HEMICHORDATES

BALANOGLOSSUS




SACCOGLOSSUS




PROTOGLOSSUS




PTYCHODERA




RHABDOPLEURA




CEPHALODISCUS




ATUBARIA

PHYLUM - ECHINODERMATA

CLASS 1 - ASTEROIDEA



ASTROPECTEN




LUIDIA




OREASTER





ASTERINA





ASTERIAS




CLASS 2 - OPHIUROIDEA




OPHIURA





OPHIOTHRIX




OPHIODERMA





GORGONOCEPHALUS





ASTERONYX




CLASS 3 - ECHINOIDEA



HISTOCIDARIS



  

GONIOCIDARIS




DIADEMA




ECHINUS





ARBACIA





CLYPEASTER




ECHINARACHINUS





ECHINOCARDIUM



CLASS 4 - HOLOTHUROIDEA



CUCUMARIA




THYONE





HOLOTHURIA





ACTINOPYGA





PELAGOTHURIA





MOLPADIA





LEPTOSYNAPTA




CLASS 5 - CRINOIDEA




ANTIDON