Catla catla (Catla) – Systematic Position/ nervous system/ excretory system/ digestive...
Systematic Position
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Pisces (Osteichthyes)
Order: Cypriniformes
Family: Cyprinidae
Genus: Catla
Species: Catla catla
Habit & Habitat
Freshwater fish
Found in rivers, lakes, ponds, reservoirs
Native to India, Bangladesh, Pakistan,...
Labeo rohita (Rohu) – general characteristics of Labeo rohita (Rohu)/ system...
Systematic Position
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Pisces (Osteichthyes)
Order: Cypriniformes
Family: Cyprinidae
Genus: Labeo
Species: Labeo rohita
Habit & Habitat
Freshwater, riverine fish
Common in rivers, lakes, ponds, reservoirs
Widely found in India,...
Chiton – general characteristics of chiton and economic importance of chiton
Chiton
Systematic Position
Phylum: Mollusca
Class: Polyplacophora
Genus: Chiton
Habit and Habitat
Marine mollusc
Found on rocky sea shores, especially in intertidal zones
Lives attached to rocks
Herbivorous, feeds on algae
External Morphology
Body is...
Nautilus – Systematic Position/ Shell (Special Feature)/ digestive system/ circulatory system/...
Nautilus
Systematic Position
Phylum: Mollusca
Class: Cephalopoda
Genus: Nautilus
Habit and Habitat
Marine mollusc
Found in deep tropical seas (Indo-Pacific region)
Lives near coral reefs, often at greater depths
Carnivorous and scavenger
External Morphology
Body...
Sepia (Cuttlefish) – external morphology of Sepia (Cuttlefish) /digestive system/excretory system/...
Sepia (Cuttlefish)
Systematic Position
Phylum: Mollusca
Class: Cephalopoda
Genus: Sepia
Habit and Habitat
Marine mollusc
Found in coastal seas and shallow waters
Lives near the sea bottom
Carnivorous
External Morphology
Body is broad, flattened, and...
Loligo (Squid) – general characteristics of Loligo (Squid)/ digestive system/ circulatory...
Loligo (Squid)
Systematic Position
Phylum: Mollusca
Class: Cephalopoda
Genus: Loligo
Habit and Habitat
Marine mollusc
Found in open seas and coastal waters
Free-swimming (nektonic)
Carnivorous predator
External Morphology
Body is elongated and spindle-shaped
Shell absent externally,...
Octopus – general characteristics/Digestive System)/ respiration/Circulatory System/ excretory system
Octopus
Systematic Position
Phylum: Mollusca
Class: Cephalopoda
Genus: Octopus
Habit and Habitat
Marine mollusc
Found in seas and oceans, usually near rocky shores
Lives in crevices and burrows
Carnivorous predator
External Morphology
Body is soft,...
Tridacna (Giant Clam) – general characteristics/ External Morphology/ nervous system/ digestive...
Tridacna (Giant Clam)
Systematic Position
Phylum: Mollusca
Class: Bivalvia (Pelecypoda)
Genus: Tridacna
Habit and Habitat
Marine mollusc
Found in tropical coral reefs of the Indo-Pacific region
Lives fixed on coral rocks in...
Pinctada (Pearl Oyster)- general characteristics of Pinctada (Pearl Oyster)
Pinctada (Pearl Oyster)
Systematic Position
Phylum: Mollusca
Class: Bivalvia (Pelecypoda)
Genus: Pinctada
Habit and Habitat
Marine mollusc
Found in shallow tropical seas
Lives attached to rocks or coral reefs
Common in pearl fisheries
External...
Ostrea (Oyster) – general characteristics of Ostrea (Oyster)/ digestive system/ circulatory...
Systematic Position
Phylum: Mollusca
Class: Bivalvia (Pelecypoda)
Genus: Ostrea
Habit and Habitat
Marine mollusc
Found attached to rocks and hard substrata
Lives in shallow coastal waters
External Morphology
Body enclosed in two unequal...
