 |
Tylocephalus auriculatus (Bütschli, 1866) Anderson, 1965
|
 |
CGC strain code:
PDL0027
Pictures:
Click here for 230 Kb SEM pictures of the lip
region.
Click here for a 73 Kb LM picture of live
worms.
Click here for a 456 Kb line drawing.
Old codes:
Locality:
Dry sand with shell fragments collected by Konjev Desender on 18 April
1991 in the littoral zone of Isla Española, Galápagos Archipelago,
Ecuador.
Classification:
Chromadoria - Chromadorida - Leptolaimina - Plectoidea - Plectidae
Culture conditions:
- Xenic: E. coli on 1% pure agar + 5 µg/ml cholesterol. Other
bacteria have not been removed.
- Xenic recipe courtesy of Björn Sohlenius): on agar with boiled
soil extract, added salts (0.04% MgSO4.7H2O, 0.14% NaCl, 0.04% K2HPO4;
0.15% KNO3), peptone and mannit (each one knife-tip/300 ml). Other bacteria
have not been removed.
Long-term storage:
Capable of surviving desiccation. Freezing was not attempted. Slowly desiccated
plates can probably be stored permanently
in liquid nitrogen.
Availability:
Dead and Gone!!
Description:
ANDERSON, R. V. (1966). An emendation of the diagnosis of both the subfamily
and two genera of Wilsonematinae and a new genus, Ereptonema n.
g. Canadian Journal of Zoology, 44: 923-935.
DE LEY, P. & COOMANS, A. (1997). Terrestrial nematodes from the
Galápagos Archipelago. 7. Description of Tylocephalus nimius
sp. n. and new data on the morphology, development and behaviour of Tylocephalus
auriculatus (Bütschli, 1873) Anderson, 1966 (Leptolaimida: Plectidae).
Fundamental and Applied Nematology, 20: 213-228.
Identification:
Paul De Ley.
Notes:
No males. Only three juvenile stages, each of which is characterized by
a distinctly different head morphology. During feeding, juveniles and adults
swing their head dorsally and ventrally like metronomes.
Last revised 27 March 1998