Archive | Animals

Phylum Entoprocta: Characters, Affinities and Phylogenetic Relationship

In this article we will discuss about Phylum Entoprocta:- 1. Characters of Phylum Entoprocta 2. Classification of Phylum Entoprocta 3. Affinities 4. Phylogenetic Relationship. Characters of Phylum Entoprocta: This group includes a number of minute sedentaric animals. They are either solitary or colonial forms (Fig. 14.34A). Superficially they resemble the Hydroidea and Bryozoa. Formerly this group was included under Bryozoa [...]

By |2016-05-27T11:34:58+00:00May 27, 2016|Phylum Entoprocta|Comments Off on Phylum Entoprocta: Characters, Affinities and Phylogenetic Relationship
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Notes on Mesozoans (With Diagram)

The following points highlight the Two main types of phyla present in Mesozoans. The types are: 1. Phylum Orthonectida 2. Phylum Rhombozoa. Mesozoans: Phyla Type # 1. Phylum Orthonectida: Features: 1. Microscopic and worm-like animals, and the body length rarely exceeds 300 µm. 2. Body without organs and consists of an outer layer of multi-ciliated cells which enclose an inner [...]

By |2016-05-27T11:34:58+00:00May 27, 2016|Mesozoans|Comments Off on Notes on Mesozoans (With Diagram)
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Phylum Gnathostomulida: Features and Phylogenetic Relationship

In this article we will discuss about Phylum Gnathostomulida:- 1. Habitat of Phylum Gnathostomulida 2. Features of Phylum Gnathostomulida 3. Phylogenetic Relationship. Habitat of Phylum Gnathostomulida: Phylum Gnathostomulida live in the interstitial spaces of marine sands which contain little or no oxygen but sufficient amount of hydrogen sulphide. They have been described from the different parts of the world with [...]

By |2016-05-27T11:34:37+00:00May 27, 2016|Phylum Gnathostomulida|Comments Off on Phylum Gnathostomulida: Features and Phylogenetic Relationship
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