Category: Other invertebrates

The described species of animals are over one million. Of these, about 55 animals possess a backbone or vertebral column and are known as “Vertebrates”. The remaining animals which lack backbone or vertebral column are referred to as “Invertebrates”. As we have discussed about arthropods- the largest phylum among invertebrates, we will discuss the rest of the phyla here, viz. Protozoa, Porifera, Ctenophora, Platyhelminthes, Nematoda, Annelida, Mollusca, Echinodermata and Hemichordata. It has been confirmed by evolutionary studies that all the members of an individual phylum have been derived from a common ancestral type. Thus all these phyla display different patterns, each manifesting a characteristic, anatomical and functional integrity and common ancestry.

Jeweled top snail

Intersting Jeweled Topsnail

Jeweled topsnail Common Name: Purple-ring topsnail, Blue-ring topsnail or Jeweled topsnail. Scientific name: Calliostoma annulatum Distribution: Kelp Forests of North America Habitat: Kelp Forest, Class: Gastropoda Description: The...

Blanket octopus

Blanket octopus

Blanket octopus A unique looking sea creature. As it’s not very big, it’s easy prey for others. So it uses a different way..when threatened...

Sea Urchin

Sea Urchin

Sea Urchin Urchin is an old name for hedgehogs. So Sea urchins are the hedgehogs of the sea. Sea urchin is an Echinoderm and...

Mimic Octopus

Mimic Octopus

The Indonesian Mimic Octopus has a unique ability to turn virtually any color or pattern. It is naturally brown and spotted but has been...

Salpa

Salp or salpa

Salp or salpa Not to be confused with jellyfish, salps are transparent, free-floating tunicates. Their gelatinous bodies swim by contracting and pumping water through...

Beautiful Glass Squid

Beautiful Glass Squid

Beautiful Glass Squid Common Name: Bathyscaphoid squid, cockatoo squid, cranchiid, cranch squid Scientific name: Cranchiidae Description: The googly-eyed glass squid (Teuthowenia pellucida is a blue, transparent organism with...

Cone Snail

Cone Snail

Cone Snail Don’t fall for this innocuous, pretty-looking sea shell. The cone snail, along with its 400 genetic cousins, can inject you with a...