It must be a member of the Annelida. Maybe Ophryotrocha (puerilis?). What do you think about the identification?
Franz
a seawater-worm
Moderators: Chris S., Pau, Beatsy, rjlittlefield, ChrisR
-
Franz Neidl
- Posts: 747
- Joined: Wed Jan 14, 2009 11:59 am
- Location: Italy
a seawater-worm
Today I photographed this living and agitated seawater-worm. It was about 1 mm long. So i had to take 2 pictures: the anterior and posterior end.
It must be a member of the Annelida. Maybe Ophryotrocha (puerilis?). What do you think about the identification?
Franz
It must be a member of the Annelida. Maybe Ophryotrocha (puerilis?). What do you think about the identification?
Franz
-
Charles Krebs
- Posts: 5865
- Joined: Tue Aug 01, 2006 8:02 pm
- Location: Issaquah, WA USA
- Contact:
Franz,
I have been "talking" (vie email) recently with Walt Dioni. He has had difficulty logging in here, so he asked if I would add this to your post:
I have been "talking" (vie email) recently with Walt Dioni. He has had difficulty logging in here, so he asked if I would add this to your post:
I am not a “regular” in this Forum (lack of an acceptable equipment to participate) but your pictures are valuable and I wonder if you could add on this theme. It is no probable that your worm belongs to Ophryotrocha. I think that Ophryotrocha has jaws, even if they are minute, and your worm hasn’t. Also Ophryotrocha seems to be thoroughly ciliated which yours is not.
Your images shown a clearly segmented worm, with lateral appendices provided with chaetae, and a head (prostomium) with eyes, and two short tentacles. Although still now many naturalists classify these little worms within a special category: the Archianelida, (a very artificial aggregate), the present tendency of the specialists is to locate them between the Polichaeta. Although I cannot define the genus (they are 9 genuses with 20 species in the family) I believe (still some one better informed shows that I am wrong) that the family is Nerillidae that has many small species, inhabitants of the interstices between sand grains (the psamon), from the coastal zone to deep waters. A most detailed classification could be found at
http://www.itis.gov/servlet/SingleRpt/S ... alue=68397
I can add that this is an exceptional picture of a beautiful worm. I find nowhere in the WEB a similar one. And only in my oldest zoology books they are drawn some relatives. If you are not one specialized scientist, you can’t have access to the descriptions, drawings and pictures of these species!. Congratulations, and send more!
Walter Dioni
sea worm
Hi Frank
I am not a “regular” in this Forum (lack of an acceptable equipment to participate) but your pictures are valuable and I wonder if you could add on this theme.
It is no probable that your worm belongs to Ophryotrocha. I think that Ophryotrocha has jaws, even if they are minute, and your worm hasn’t. Also Ophryotrocha seems to be thoroughly ciliated which yours is not.
Your images shown a clearly segmented worm, with lateral appendices provided with chaetae, and a head (prostomium) with eyes, and two short tentacles. Although still now many naturalists classify these little worms within a special category: the Archianelida, (a very artificial aggregate), the present tendency of the specialists is to locate them between the Polichaeta. Although I cannot define the genus (they are 9 genuses with 20 species in the family) I believe (still some one better informed shows that I am wrong) that the family is Nerillidae that has many small species, inhabitants of the interstices between sand grains (the psamon), from the coastal zone to deep waters. A most detailed classification could be found at
http://www.itis.gov/servlet/SingleRpt/S ... alue=68397
I can add that this is an exceptional picture of a beautiful worm. I find nowhere in the WEB a similar one. And only in my oldest zoology books they are drawn some relatives. If you are not one specialized scientist, you can’t have access to the descriptions, drawings and pictures of these species!. Congratulations, and send more!
Walter Dioni
I am not a “regular” in this Forum (lack of an acceptable equipment to participate) but your pictures are valuable and I wonder if you could add on this theme.
It is no probable that your worm belongs to Ophryotrocha. I think that Ophryotrocha has jaws, even if they are minute, and your worm hasn’t. Also Ophryotrocha seems to be thoroughly ciliated which yours is not.
Your images shown a clearly segmented worm, with lateral appendices provided with chaetae, and a head (prostomium) with eyes, and two short tentacles. Although still now many naturalists classify these little worms within a special category: the Archianelida, (a very artificial aggregate), the present tendency of the specialists is to locate them between the Polichaeta. Although I cannot define the genus (they are 9 genuses with 20 species in the family) I believe (still some one better informed shows that I am wrong) that the family is Nerillidae that has many small species, inhabitants of the interstices between sand grains (the psamon), from the coastal zone to deep waters. A most detailed classification could be found at
http://www.itis.gov/servlet/SingleRpt/S ... alue=68397
I can add that this is an exceptional picture of a beautiful worm. I find nowhere in the WEB a similar one. And only in my oldest zoology books they are drawn some relatives. If you are not one specialized scientist, you can’t have access to the descriptions, drawings and pictures of these species!. Congratulations, and send more!
Walter Dioni
sea worm
I’m sorry 
:
I frequent another forum, where the messages are located the inverse way: the new message is put above the older ones. So, when I opened the forum I did not see that Charles had communicated my message. Thanks to all, Charles, Rick and the members that receive me again.
Walter
:I frequent another forum, where the messages are located the inverse way: the new message is put above the older ones. So, when I opened the forum I did not see that Charles had communicated my message. Thanks to all, Charles, Rick and the members that receive me again.
Walter
-
Franz Neidl
- Posts: 747
- Joined: Wed Jan 14, 2009 11:59 am
- Location: Italy
Hallo Walter,
several days I could not receive the post from this forum. So I am only now able to answer.
Thank you very much for your help related to the identification of this worm.
I hope you remain in this forum; one of the many reasons for this is the fact that my pictures of the next worms are already waiting to be published here and there are no many peoples the like this animals!
Many greetings from Italy to Mexico (how small is the world!)
Franz
P.S.: Many thanks also to Charles for this help!
( I admire his pictures)
several days I could not receive the post from this forum. So I am only now able to answer.
Thank you very much for your help related to the identification of this worm.
I hope you remain in this forum; one of the many reasons for this is the fact that my pictures of the next worms are already waiting to be published here and there are no many peoples the like this animals!
Many greetings from Italy to Mexico (how small is the world!)
Franz
P.S.: Many thanks also to Charles for this help!
( I admire his pictures)
-
Charles Krebs
- Posts: 5865
- Joined: Tue Aug 01, 2006 8:02 pm
- Location: Issaquah, WA USA
- Contact:
-
Wim van Egmond
- Posts: 826
- Joined: Tue Aug 15, 2006 9:28 am
- Location: Berkel en Rodenrijs, the Netherlands
- Contact:
I am sorry for the silence. Too much work and my home connection does not work.
Very nice images Franz!
I have seen similar polychaete worms but also had difficulty identifying it.
http://www.microscopy-uk.org.uk/micropo ... index.html
Perhaps this one belongs to the genus Nephtys.
all the best,
Wim
Very nice images Franz!
I have seen similar polychaete worms but also had difficulty identifying it.
http://www.microscopy-uk.org.uk/micropo ... index.html
Perhaps this one belongs to the genus Nephtys.
all the best,
Wim