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Leslie

Critter Expert
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Everything posted by Leslie

  1. That's one of the commonest shrimp of all - Periclimenes brevicarpalis. It's primarily a commensal on anemones.
  2. Brian & I corresponded about this. I thought - maybe - it might be a megalopa since there appears to be a semi-extended abdomen, then sent it to our crustacea curator, Jody Martin, for his opinion. With the lack of detail Jody was unwilling to even go that far with an id. So if anyone sees a tiny crustacean with bright yellow eyes please take a photo! Maybe we can figure it out.
  3. I'll send it to Angel (co-author with Gosliner) tomorrow for his opinion.
  4. It could be a coincidence since they're both feeding on the entoprocts and they do tend to be pretty oblivious to others or obstacles when feeding and travelling. I've seen photos of them crawling over scorpion fish, frogfish, wobbies, etc. On the other hand, it could be a prelude/aftermath to mating. As Greedo said, they mate right side to right side. Nudis can be sexually reproductive at small sizes so mating is a possibility.
  5. Incidentally, those small translucent gray blobs on stalks all over the surface of the sponge are entoprocts, small colonial animals. Other Trapania species are known to feed on entoprocts so its likely that this one is too.
  6. Hmmmm.... I wonder about Massimo's because it doesn't have the tuft of hair projecting forward between the eyes. That seems to be very consistent among the ones identified by crab people.
  7. That's the other crab I thought of but dismissed because I didn't think vespertilio had those discrete tufts on the back. But... looking through more images I see that it does. Check out Art's photo - http://www.flickr.com/photos/artour_a/2350...57622406853916/ So now I think you're right. :-))
  8. Hi Brian -- The red one is easy - Liomera cinctimana. It occurs on both sides of the Pacific & I remember it because I photographed one in Panama. The other, well, I wish you had gotten a photo of it from the top. It appears to be a xanthid or in a related family & reminds me of the teddy bear crab Polydectus cupulifera but doesn't have near enough "hair".
  9. Something different. That's the red algae Gibsmithia. There are 4 species according to algaebase and it seems closest to G. hawaiiensis http://www.algaebase.org/search/species/de...species_id=4334 http://university.uog.edu/botany/474/rhodo...thia.html#dotyi
  10. Hi Tom - It's been seen but not described. In the recent Indo-Pacific nudi book by Gosliner, Behrens, & Valdes this is listed as Trepania sp. 5.
  11. I am getting so forgetful you might as well just shoot me & get it over with. Art replied that it was probably a parasitic dajid isopod so I searched around and found this - http://sg.homeunix.com/jovin/Gorontalo-Nov...nemone_shrimp_6 It's the same species of isopod & shrimp. If you click for an enlargement you can actually see the legs of the dajid. The someone from scubaboard who identified it has the initials LH and works for a museum in Los Angeles..... DOH!
  12. Interesting. That's something I haven't seen before & don't have a clue as to who or what. I'll have to consult with the Shrimp Squad.
  13. Oh, the horror! Alas, poor poor wormie..... But it's an easy one at the family level. Clearly a scale worm in the family Polynoidae. Very nice capture, Bent.
  14. Glad I could point you in the right direction, BlackSir. :-)) Candy floss? Is that what yanks would call cotton candy, Nick? I do think that it is cyanobacteria attached to the calcareous operculum of a christmas tree worm. They often get overgrown by algae & such.
  15. Color varies. So does shape as that can depend on whether it's on the seafloor or covering a rock or waving in the current. Also, the shape changes when the cyanobacteria produce air bubbles that lift up the algae. On the other hand, you saw it for real and I'm just guessing. :-)
  16. Being "cotton" it's more likely to be tufts of cyanobacteria. They come in a variety of colors although red is very common.
  17. :-D I probably just started typing sooner than you did. Hope we see you at LAUPS one of these days.
  18. On the contrary, YOU are the mysterious monster that the poor creature is trying to hide from! :-D
  19. It's a type of green algae called Valonia, commonly known as bubble algae or dead-man's eyeballs.
  20. Definitely. A lot of them stay hidden in holes and let their fingers do the walking.
  21. Hi Bent -- Thanks so much for posting these. They're polychaetes worms in the family Onuphidae. Clear tubes are associated with the genus Hyalinoecia, some species of which have been reported from Indonesia. I can't be positive without examining some under a microscope. Most polychaetes can easily turn around in their tubes or crawl backwards. Got any other worms? :-) Cheers, Leslie
  22. "Species 1", "species A", etc., are what we call provisional species names. Usually they're just designations given by the guide book's author for things they can't get names for. In that case you'll find the same species listed under different designations in different books. If the provisional name is followed by a researcher's name such as "Alpheus sp. 12 Anker" or the book is by a specialist like Terry Gosliner then it means that a specialist recognizes the species as probably unique and undescribed.
  23. Hi Marli -- Art's on his way to Brazil I think. I'd go with Vir euphyllius. The white patches are internal organs which vary in size so they're not a useful character. It would be unusually pale for a euphyllius but intensity of color varies too and the host is certainly right for a Vir.
  24. Heard back from Sammy De Grave, confirming both that the first is a new genus & species and that the second is different. He said the Misool shrimp is Hamodactylus noumeae. I hadn't seen that coloration before but found another one on flickr which is similar - http://www.flickr.com/photos/hungandpan/28...in/photostream/
  25. It's an unusual ctenophore (comb jelly) called Venus's Girdle - Cestum veneris.
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