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 leech-like larva, 2015-10-29 > no dipteran => Argonemertes dendyi
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| Lennart Bendixen |
Posted on 30-10-2015 08:24
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Member Location: Posts: 1171 Joined: 19.12.14 |
Hi, here's another larva that is living in rotten wood. Is Diptera correct at all...? Longest measured length was 8 mm; being compressed it was much shorter. Who can help? Thanks in advance. Lennart 2015-10-29, Northern Germany, S-H, Mohrkirch, fallow land, wood pile Edited by Lennart Bendixen on 30-10-2015 20:15 |
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| solito de solis |
Posted on 30-10-2015 09:08
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 Member Location: Posts: 404 Joined: 05.08.13 |
Hey if it was a leech, it could be the silhouette of Erpobdellidae. IF I explore the photo I could guess one blackspot on the anterior part of this organism a pair of eyes ? Erpobdellidae have 4 pairs of eyes one of which is situated alike this blackspot. The yellow-brown color and the pattern, the shape of this organism tell me this could be a Erpobdella leech but... I can't see the natural segmentation of a leech Erpobdella body (seems here to be viscuous) |
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| Lennart Bendixen |
Posted on 30-10-2015 10:17
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Member Location: Posts: 1171 Joined: 19.12.14 |
Thank you for your detailed answer! Now that's interesting - you're right, there's no segmentation visible. And there was another black spot on the other side indeed, so to me it looked like it's got eyes, too. I add another picture, though I don't really think it will help... |
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| solito de solis |
Posted on 30-10-2015 12:53
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Member Location: Posts: 404 Joined: 05.08.13 |
You're welcome Perhaps it's not a leech I propose you pictures about a little Erpobdella on my arm skin filmed in a dark room You could ee the anterior sucker on the left picture and I see that your organism is also showing a part of the anterior sucker, the neck a little bit twisted to you. Furthermore I also did the observation that when they are out of water after a while, Erpobdellae do not show segmentation... given that a viscous mucus protects their skin from dryness and makes less visible their segmentation But this only speculation   SDS Edited by solito de solis on 30-10-2015 12:53 |
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| Tony Irwin |
Posted on 30-10-2015 14:56
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 Member Location: Posts: 7168 Joined: 19.11.04 |
Not Diptera or Annelida. This is a terrestrial nemertean - Argonemertes dendyi. There are similar terrestrial planarians, but this appears to show the features of Argonemertes.
Tony ---------- Tony Irwin |
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| Lennart Bendixen |
Posted on 30-10-2015 20:12
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Member Location: Posts: 1171 Joined: 19.12.14 |
Great! Now that's something new for me - never heard of. Thanks a lot for clearing it up! Sorry for adding a second specimen to this thread, but this just fits, because I found it in the same wood pile, just a few minutes later: Is this a Nemertean, too, but a different species? Length up to 14 mm. |
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| Tony Irwin |
Posted on 30-10-2015 23:25
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Member Location: Posts: 7168 Joined: 19.11.04 |
No, this is a terrestrial planarian - Microplana terrestris
Tony ---------- Tony Irwin |
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| Lennart Bendixen |
Posted on 31-10-2015 05:20
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Member Location: Posts: 1171 Joined: 19.12.14 |
Well, that's one amazing wood pile...  Thanks again, Tony! |
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but don't see the image in the post.