|
Hydra oligactis - Wiki
| 제목: | Hydra oligactis - Wiki
| |
| 해상도: 237x210
파일크기: 16171 Bytes
촬영일: 2007:10:19 14:15:34
등록시간: 2007:10:19 14:15:59
|
Hydra oligactis
From Wikipedia, the free encyclopedia
[Photo] Hydra oligactis, also known as the brown hydra. Taken with dissection LM. By http://en.wikipedia.org/wiki/User:Brazucs | Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". |
Order: Hydroida
Family: Hydridae
Genus: Hydra
Species: Hydra oligactis
Hydra oligactis, also known as the brown Hydra, is a species of hydra found widely dispersed in the northern temperate zone. It is a common organism found in still waters from early Spring to late Autumn.
It is commonly found attached to the stems of water plants, the undersides of leaves , submerged twigs and on the surface of stones. When disturbed it retracts to a small brown blob which is easly overlooked. Gently sweeping through a clean weedy pond and allowing the collected water and leaves to stand in a jar will often reveal Hydra emerging after only a few minutes.
When in feeding mode, the fully extended tentacles are very long and may exceed 1 inch (25 mm) in length. In this condition the tentacles are very difficult to see with the naked eye and are often only revealed when a prey animal such as Daphnia is caught.
http://en.wikipedia.org/wiki/Hydra_oligactis
| The text in this page is based on the copyrighted Wikipedia article shown in above URL. It is used under the GNU Free Documentation License. You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL. |
|
^o^
동물그림창고 똑똑전화 누리집
^o^
|
|
