Agatha (genus)
Encyclopedia
Agatha is a small genus
of minute sea snail
s or marine
gastropod mollusks within the subfamily Syrnolinae, which is a part of the family Pyramidellidae
.
They have bilateral symmetry, and only have endoderm
and ectoderm
tissues.
The species of this genus are ectoparasites on other invertebrates.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of minute sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....
s or marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...
gastropod mollusks within the subfamily Syrnolinae, which is a part of the family Pyramidellidae
Pyramidellidae
Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs or micromolluscs....
.
They have bilateral symmetry, and only have endoderm
Endoderm
Endoderm is one of the three primary germ cell layers in the very early embryo. The other two layers are the ectoderm and mesoderm , with the endoderm as the intermost layer...
and ectoderm
Ectoderm
The "ectoderm" is one of the three primary germ cell layers in the very early embryo. The other two layers are the mesoderm and endoderm , with the ectoderm as the most exterior layer...
tissues.
The species of this genus are ectoparasites on other invertebrates.