Yamaguchia: Difference between revisions
No edit summary |
No edit summary |
||
| Line 15: | Line 15: | ||
''Yamaguchia toyensis'', which was first described by Fend and Ohtaka (2004), is one of many aquatic [[oligochaete]]s belonging to the family [[Lumbriculidae]] discovered on [[Hokkaido]], which seems to be one of three "hotspots" of [[Lumbriculidae|lumbriculid]] diversity (the others being the [[Rocky Mountains]] and [[Lake Baikal]]. The genus named after the great [[oligochaete]] [[taxonomist]] Professor Hideji Yamaguchi. |
''Yamaguchia toyensis'', which was first described by Fend and Ohtaka (2004), is one of many aquatic [[oligochaete]]s belonging to the family [[Lumbriculidae]] discovered on [[Hokkaido]], which seems to be one of three "hotspots" of [[Lumbriculidae|lumbriculid]] diversity (the others being the [[Rocky Mountains]] and [[Lake Baikal]]. The genus named after the great [[oligochaete]] [[taxonomist]] Professor Hideji Yamaguchi. |
||
''Y. toyensis'' was originally collected from profundal parts of Lake Toya, [[Hokkaido]] (after which it is named), and is among the shortest of the lumbriculids (7-11 mm). It is uncertain where in the [[phylogeny]] of the lumbriculids ''Y. toyensis'' belongs. It seems to lack novel characters with which to place it unambiguously, but has a combination of features not found in other genera of the family |
''Y. toyensis'' was originally collected from profundal parts of Lake Toya, [[Hokkaido]] (after which it is named), and is among the shortest of the lumbriculids (7-11 mm). It is uncertain where in the [[phylogeny]] of the lumbriculids ''Y. toyensis'' belongs. It seems to lack novel characters with which to place it unambiguously, but has a combination of features not found in other genera of the family: testes and atria in segment X, a single, prosoporous male funnel per atrium, and spermathecae in segment XI. |
||
==References== |
==References== |
||
Revision as of 19:22, 20 September 2006
| Yamaguchia toyensis | |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Subclass: | |
| Order: | |
| Family: | |
| Genus: | Yamaguchia
|
| Species: | Y. toyensis
|
| Binomial name | |
| Yamaguchia toyensis | |
Yamaguchia toyensis, which was first described by Fend and Ohtaka (2004), is one of many aquatic oligochaetes belonging to the family Lumbriculidae discovered on Hokkaido, which seems to be one of three "hotspots" of lumbriculid diversity (the others being the Rocky Mountains and Lake Baikal. The genus named after the great oligochaete taxonomist Professor Hideji Yamaguchi.
Y. toyensis was originally collected from profundal parts of Lake Toya, Hokkaido (after which it is named), and is among the shortest of the lumbriculids (7-11 mm). It is uncertain where in the phylogeny of the lumbriculids Y. toyensis belongs. It seems to lack novel characters with which to place it unambiguously, but has a combination of features not found in other genera of the family: testes and atria in segment X, a single, prosoporous male funnel per atrium, and spermathecae in segment XI.
References
- Fend, S. V. & Ohtaka, A. (2004): Yamaguchia toyensis n. sp., n. gen. (Annelida, Clitellata, Lumbriculidae) from Profundal Lake Habitat in Japan. Zoological Science 21: 677-683.