Notarchus: Difference between revisions
Content deleted Content added
mNo edit summary |
GrahamBould (talk | contribs) mNo edit summary |
||
| Line 37: | Line 37: | ||
* [http://www.medslugs.de/E/Med/Notarchus_punctatus.htm Images of Notarchus punctatus] |
* [http://www.medslugs.de/E/Med/Notarchus_punctatus.htm Images of Notarchus punctatus] |
||
[[Category: |
[[Category:]] |
||
Revision as of 23:26, 4 December 2007
| Notarchus | |
|---|---|
| |
| Notarchus punctatus | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Suborder: | |
| Superfamily: | |
| Family: | |
| Genus: | Notarchus
|
| Species | |
|
See text. | |
Notarchus (Cuvier, 1817) is a taxonomic genus of sea slug or sea hare, a marine opisthobranch gastropod mollusk in the family Aplysiidae, the sea hares.
(A general description of sea hares can be found on the page of the superfamily Aplysioidea.)
The parapodia (fleshy winglike outgrowths) of Notarchus are almost completely fused, forming the parapodial cavity. There is no shell. They are able to swim by jet propulsion, through sucking in water through the small anterior opening of the parapodial cavity and then squirting water from the back of it. While doing so, they tumble and make a series of backward somersaults. In this unusual manner, they move quickly out of harm’s way over short distances.
Species
- Notarchus indicus Schweigger, 1820 : Indian Sea Hare
- Distribution : in shallow waters of NW Indian Ocean, NW Pacific, Mediterranean.
- Description : fine papillae scattered over the mantle; no armed penis; feeds on green alga Caulerpa.
- Notarchus punctatus Philippi, 1836
- Distribution : Japan, Indo-Chinese seas, Mediterranean.
- Length : 5 cm
- Description : penis with spines.
