( Zoology ) Diversity of Chordates ( Major,Minor, MDC ) Bihar B.Sc 2nd Sem

MJC-2: Diversity of Chordates (Theory: 2 credits) 40 hrs

Unit

Topics

No. of Lectures

1

1.      Introduction to Chordates

General characteristics and classification (upto Order): Cephalochordata, Urochordata, Pisces, Amphibia, Reptilia, Aves, Mammals, Cyclostomata

8

2

2.      Origin and Evolution of Chordata

3.      Cephalochordata: Amphioxus

4.      Urochordata: Herdmania (including retrogressive metamorphosis)

5.      Cyclostomata: Petromyzon

10

3

6.      Pisces: Migration, Osmoregulation, and accessory respiration

7.      Amphibia: Origin and Evolution; Parental care, Neoteny

8.      Reptilia: Poison and non-poisionous snakes; Poison apparatus; biting and feeding mechanism in snakes

12

4

9.      Aves: Origin of birds; Flight adaptations; Migration in birds

10.  Mammals: Characters, distribution and affinities of Prototheria Metatheria, Eutheria

10

Total

40

MJC-2: Diversity of Chordates (Practical: 2 credits) 20 hrs

Practical:

1.      Amphioxus: T.S through pharyngeal, intestinal, and caudal regions

2.      Herdmania: Whole mount, Spicules

3.      Cyclostomata: Petromyzon, Myxine

4.      Fish: Scoliodon, Torpedo, Chimaera, Labeo, Exocoetus, Echeneis, Hippocampus; Scales of fishes

5.      Amphibia: Ichthyophis, Bufo, Hyla, Alytes, Salamandra, Axolotle larva

6.      Reptilia: Chelone, Hemidactylus, Varanus, Vipera, Naja, Bungarus, Uromastix, Chamaeleon, Draco, Calotes, Heloderma; Key for Identification of poisonous and non-poisonous snakes.

7.      Aves: Types of beaks and claws, Study of pecten from fowl head and brain of fowl

8.      Mammalia: Sorex, Bat (Insectivorous and Frugivorous), Funambulus, Loris, Herpestes, Erinaceous, Macropus, Echidna