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Hirudineans, Leeches FAQs

Related FAQs: Worm Diversity FAQs, FAQs 2, FAQs 3, & Worm IDs 1, Worm IDs 2, Worm IDs 3, Worm IDs 4, Worm IDs 5, Worm IDs 6, Worm IDs 7, Worm IDs 8, & Worm ID FAQs by Group/Phylum: Flatworm Identification ID, Nemertean, Proboscis, Ribbon Worm ID, Nematode, Roundworm ID, Nematomorpha, Horsehair Worm ID, Acanthocephalans, Thorny-headed Worm ID, Polychaete Identification, Polychaete ID 2, Tubeworm ID, Sipunculids, Peanut Worm ID, Echiuran Worm ID,

Related Articles: Worms, Polychaetes, Flatworms/Planaria

Mmm, two suckers (attachment organs), one at either end... segmented? Yep...

Id help--Picture included   1/29/09 Hi, it's very tiny and I found it crawling around on one of my CB seahorses. <Unusual...> Is it a peanut worm? <Might be, but the pic is so small, unresolved, I can't tell you with any confidence what phylum this speck belongs to> http://smg.photobucket.com/albums/v330/Bbella/?action=view&current=P1281076.jpg  *[IMG]http://img.photobucket.com/albums/v330/Bbella/P1281076.jpg[/IMG]  Thanks, Liz* <Welcome. Bob Fenner>

A Hirudinean? RMF.
Flat worms or Leeches? Hello, <Good evening> I've been looking on your site to try to identify these guys in my tank.  I just started a new tank (without the fish), just gravel and water and your basic starter bacteria for fresh water. After about 5 days I've found two life forms. One was (now dead) swimming like a ribbon with up and down movements along its body (about 3 inches long). They are flat, thin and dark brown. <Does sound like a flatworm> The other is smaller (about 1 inch) and has attached itself to the glass with one end and wiggling around like its looking for something with the other end. <Sounds like a leech, Hirudinean> The tank had fish in it for 4 months before, was drained about 90% with gravel, and then set aside for 2 weeks.  The tank was washed with water and sponge (no soap), but the gravel was not cleaned from the previous use. What are they, do I need to get rid of them, if so how? Thanks, much appreciated, love your site!!! Tommy <Could be as stated... not so sure that I'd go to extraordinary measures to kill or remove them though... Likely will disappear on their own... and not bother your livestock. Bob Fenner>

Hitch hiker ID Please? Folks, <Howdy> The attached picture is of a "creature" that I found in my new 75 gallon reef tank. <No file attached> The tank is cycling with live rock only at this time.  There are a few smallish crabs and snails and whatnot that came in on the live rock; no harm done.  However, I found this "thing" crawling around on the DSB yesterday.  It moves like an inchworm, attaching to surfaces with its mouth and pulling itself into a bell curve before attaching with its tail and so on.  The scary thing is that the oral opening looks A LOT like a lamprey.  Unlike lamprey, it has a suction cup like tail as well. <Ah ha! (imagine best Sherlock Holmes impression). Does sound like a leech> I've posted on many boards and everyone seems stumped.  I was wondering if you could help.  I do have SOME time as the tank is cycling.  However, I don't want to lose track of it, or "let it be" if it is harmful.   <I'd remove this animal> I'd sure be upset if I found it one day attached to and sucking the life out of my clowns or Dottyback!  Thank you in advance, David PS.  I've read the Reef Invert book from cover to cover and am on round two.  It's a great resource and is extremely entertaining in that "Fenner, Calfo, WWM" way. <Mmm, sometimes predictability is fine. Bob Fenner>

Re: Hitch hiker ID Please? Boy it's been a long week ;)  Sorry.  Picture is now attached. <D> <Much more definitely a leech. Again, I'd give it the heave-ho. All Hirudineans are parasitic... Bob Fenner>
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