What are veliger larvae?

1. Is a veliger larvae?
2. What is the larval stage of mollusks called?
3. What are the larval stages of Mollusca?
4. Which mollusc class lacks the veliger vs trochophore larval stage?
5. What is the meaning of Veliger?
6. What is the larval form of echinoderms known as?
7. Do molluscs have a larval stage?
8. Do cephalopods have larval stage?
9. Which larva is found in Mollusca?
10. What is the first larval stage of fasciola?
11. When present a crustacean larva is called?
12. Which phylum does trochophore larva belong to?
13. What are the 3 major classes of phylum Mollusca?

Is a veliger larvae?

A veliger is the planktonic larva of many kinds of sea snails and freshwater snails, as well as most bivalve molluscs (clams) and tusk shells.

What is the larval stage of mollusks called?

Both mollusks and annelids develop through a larval stage called a trochophore larva. Trochophore larvae are characterized by having a band of cilia that wraps around the body.

What are the larval stages of Mollusca?

veliger, larva typical of certain mollusks such as marine snails and bivalves and a few freshwater bivalves. The veliger develops from the trochophore (q.v.) larva and has large, ciliated lobes (velum). The velum forms from the ciliary ring (prototroch), a characteristic of the trochophore stage.

Which mollusc class lacks the veliger vs trochophore larval stage?

Reproduction in cephalopods is different from other mollusks in that the egg hatches to produce a juvenile adult without undergoing the trochophore and veliger larval stages. In the shell-bearing Nautilus spp., the spiral shell is multi-chambered.

What is the meaning of Veliger?

veliger. / (ˈvɛlɪdʒə) / noun. the free-swimming larva of many molluscs, having a rudimentary shell and a ciliated velum used for feeding and locomotion.

What is the larval form of echinoderms known as?

ECHINOPLUTEUS LARVA

➢ There is a single larval stage in echinoidea called Echinopluteus which is bilaterally symmetrical. ➢ The larva has oval body and long paired ciliated arms that are supported by calcareous skeletal rods.

Do molluscs have a larval stage?

Unlike echinoderms, molluscs do not have a larval body separate from the juvenile/adult body; mollus- can larvae have only transient larval traits.

Do cephalopods have larval stage?

Cephalopods have a different development to other molluscs and hatch as modified miniature adults called larvae, juveniles or, in some octopuses, paralarvae (Young and Harman 1988).

Which larva is found in Mollusca?

Trochophore larva is the larva found in mollusca and annelids.

What is the first larval stage of fasciola?

[Miracidium larva comes out from the egg shell of the fertilized egg by eroding tlie operculum wit11 the help of proteolytic enzyme. It is the first larval stage in the life cycle of F. hepatica. It is a free swimming stage in fresh water.

When present a crustacean larva is called?

In animal development: The larval stage. In crustaceans the larva, called nauplius, does not differ substantially in mode of life or means of locomotion from the adult but has fewer appendages than the adult. A typical crustacean nauplius has three pairs of legs and an unpaired simple eye.

Which phylum does trochophore larva belong to?

They are triploblastic, bilaterally symmetrical and segmented Metazoa. Some of the annelids belong to the Lophotrochozoa lineage. Trochophore larva occurs in phylum annelida.

What are the 3 major classes of phylum Mollusca?

The three major groups of mollusks are gastropods, bivalves, and cephalopods (SEF ul o pods). The largest group is the gastropods. These are mollusks like snails and slugs that have just one shell or no shell at all.