Learn about the comparison between ctenophora and hydrozoa.

Comparison # Ctenophora:

1. A pair of opposite par radial tentacles.

2. Deep pouch at the base of the tentacles similar to tentacular sheath of Hormiphora

3. Eight radial canals formed by bifurcation of four interracial pouches of the stomach.

ADVERTISEMENTS:

4. Subumbrellar cavity of catenaries comparable to the stomodaeum of Hormiphore.

Comparison # Hydrozoa:

Structure:

1. Gullet

Ctenophora:

ADVERTISEMENTS:

Ectodermal

Ctenaria:

Endodermal

Structure:

ADVERTISEMENTS:

2. Tentacles

Ctenophora:

Posses Muscular Base

Ctenaria:

Lacks Muscular base

Structure:

3. Origin of gonad

Ctenophora:

Meridional canals

ADVERTISEMENTS:

Ctenaria:

Manubrium

Structure:

4. Aboral sense organ

Ctenophora:

Present

Ctenaria:

Absent.