CLASS APLACOPHORA (a, without + plak, plate + phoros, to bear) Members of the class Aplacophora are called solenogasters. They have approximately 250 species. These are cylindrical molluscs. They lack…
CLASS CAUDOFOVEATA (cauda, tail + fovea, small pit) Members of the class Caudofveata are wormlike molluscs. They range in size from 2mni to I 4cm. They live in vertical burrows…
CLASS MONOPLACOPHORA (mono, one + plak, plate + phoros, bear) The members of the class Monoplacophora have an undivided, arched shell. They have a broad flat foot. They have serially…
CLASS SCAPHOPODA (skaphe boat + podus, foot) 1. Habitat: Members of the class Scaphopoda are called tooth shells or tusk shells. This class has over three hundred species. All are…
CLASS POLYPLACOPHORA Habitat: The Class Polyplacophora contains the Chitons. Chitons live on hard substrates in shallow marine water. Early Native Americans ate Chitons. Chitons have a fishy flavor. But they…
CLASS CEPHALOPODA (L. cephalic, head + Or. podos, foot) The class Cephalopoda includes the octopuses. squid, cuttlefish. and nautili. They are the most complex molluscs. The anterior portion of their…
CLASS BIVALVIA (bis, twic + vala; leaf) There are 30,000 species of this class. It is the second largest molluscan class. This class includes the clams, oysters, mussels, and scallops.…
CLASS GASTROPODA (Or. gaster, gut + podos, foot) The class Gastropoda includes the snails. limpets, and slugs. It has 35.000 living species. It is the largest class of molluscs. Its…
CLASSIFICATION 1. Class Caudofoveata 1.They are wormlike molluscs. 2. They have cylindrical, shell-less body and scale like, calcareous spicules. 3. They lack eyes, tentacles, statocysts. crystalline style, foot, and nephridia.…
MOLLUSCAN CHARACTERISTICS The size of molluscs varies greatly. The largest body form is the giant squid 18 m in length. The smallest garden slug is less than 1 cm long.…
saadia