Kunci Dikotom Cephal Dan Agnatha.docx

SUBFILUM CEPHALOCHORDATA DAN SUBFILUM AGNATHA

KUNCI IDENTIFIKASI

DISUSUN UNTUK MEMENUHI TUGAS MATAKULIAH Keanekaragaman Hewan (KH) yang dibimbing oleh Ibu Dr. Sri Endah Indriwati, M. Pd

Disusun oleh: Maya Andya Garini 170341615032 S1 Pendidikan Biologi/ Offering B

UNIVERSITAS NEGERI MALANG FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM JURUSAN BIOLOGI Oktober 2018

SUBFILUM CEPHALOCHORDATA VS SUBFILUM AGNATHA

1. Struktur tubuh a. Bersegmen............................................................................................ 2a b. Lunak tanpa sisik .................................................................................. 2b 2. Rongga tubuh a. Jelas ...................................................................................................... 3a b. Tidak jelas ............................................................................................. 3b 3. Keberadaan rahang a. Ada ....................................................................................................... 4a b. Tidak ada .............................................................................................. 4b 4. Letak mulut a. Dibelakang vestibulum ......................................................................... 5a b. Di dalam vestibulum ............................................................................. 5b 5. Organ ekskresi a. Nefridia ................................................................................................. 6a b. Ginjal..................................................................................................... 6b 6. Jumlah organ reseptor a. 6 buah ................................................................................................... 7a b. 2buah.................................................................................................... 7b 7. Habitat a. Air laut .................................................................................................. Cephalochordata b. Air laut dan air tawar ............................................................................ Agnatha

Cephalochordata: 1a, 2a, 3a, 4a, 5a, 6a, 7a Agnatha: 1b, 2b, 3b, 4b, 5b, 6b, 7b

ASYMMETRON VS BRANCHIOSTOMA

1. Panjang tubuh a. 19 – 22 mm .................................................................................... 2a b. 3,5 – 5 mm ..................................................................................... 2b 2. Warna tubuh a. Putih hingga kuning pucat ............................................................. 3a b. Kesumba ........................................................................................ 3b 3. Keberadaan metapleura a. Ada ................................................................................................. 4a b. Tidak ada ........................................................................................ 4b 4. Keberadaan gonad a. Terletak sebelah kanan .................................................................. 5a b. Tidak ada ........................................................................................ 5b 5. Jumlah gonad a. 1 seri gonad.................................................................................... 6a b. 26 pasang gonad ............................................................................ 6b 6. Baris gonad a. Satu baris ....................................................................................... 7a b. Dua baris ........................................................................................ 7b 7. Sirip ekor a. Berpigmen...................................................................................... 8a b. Tidak berpigmen ............................................................................ 8b 8. Habitat a. Laut dangkal ................................................................................... Asymmetron b. Tepi laut ......................................................................................... Branchiostoma

Asymmetron: 1a, 2a, 3a, 4a, 5a, 6a, 7a, 8a Branchiostoma: 1b, 2b, 3b, 4b, 5b, 6b, 7b, 8b

OSTRACODERMII VS CYCLOSTOMATA

1. Habitat a. Air tawar dan air laut ............................................................................ 2a b. Air laut .................................................................................................. 2b 2. Struktur kepala a. Keras ..................................................................................................... 3a b. Lunak .................................................................................................... 3b 3. Sifat endoskeleton a. Cukup keras .......................................................................................... 4a b. Tulang rawan ........................................................................................ 4b 4. Letak nostril a. Puncak kepala ....................................................................................... 5a b. Median kepala ...................................................................................... 5b 5. Jumlah gonad a. Sepasang............................................................................................... 6a b. Satu buah gonad................................................................................... 6b 6. Perkembangan larva a. Langsung ............................................................................................... Ostracodermii b. Tidak langsung ...................................................................................... Cyclostomata

Ostracodermii: 1a, 2a, 3a, 4a, 5a, 6a Cyclostomata: 1b, 2b, 3b, 4b, 5b, 6b