Sinistral Land Hermit Crab Discussion (Pictures) LOTS!

For topics relating to crab care that do not fit into the other categories.

What Species are These Sinistral LHC ?

Poll ended at Fri Sep 23, 2005 9:10 am

Coenobita cavipes
11
50%
Coenobita rugosus
1
5%
Unknown species
10
45%
 
Total votes: 22

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Mokulele_Hawai'i
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Sinistral Land Hermit Crab Discussion (Pictures) LOTS!

Post by Mokulele_Hawai'i » Tue Sep 13, 2005 9:10 am

mars :) :D returned from a weekend vacation at Bintang Island (one of many coral islets scattered in Jakarta Bay). Surprisingly, she brought some cavipes or rugosus-like hermies that wear left-handed Amphidromus snail shell.

Image

Image

I adopted seven of them. Here are their stunning characteristics:

1. Black walking legs, with leg-segment proportions that are similar to cavs' legs.

2. Black or dark brown tones on the carapace, with bluish tingeing.
Image
Image

3. No stridulation ridge on the pincers.


4. Small eyestalks, like those of ruggies, and relatively-round eyes (like those of indos or Caribbeans).
Image

5. Occasional bigger right pincer compared to the left one, or same-size pincers.
Image

The following pictures shows how they seal the shell openning:
Image
Image

Could these be specimens of a new species ? I remember that more than 10 years ago, I got one similar crab from a local vendor. Once I read about Coenobita longitarsis that was said living in the Dutch Indies (former name of the Republic of Indonesia), but there has not been any further reference or record about such species.

Could anybody (who knows few Latin words) in this forum tell me what "longitarsis" means ?

Or may these crabs be just a variety of C.cavipes ? May long-term habit of using left-handed shell and long-term isolation make the right pincer grow bigger than usual ?
Hermit crab lover since 1981
Founder of "Blueberry land hermit crab" - common name for Coenobita purpureus, and "Zebra Sunset land hermit crab" for a new subspecies of Coenobita violascens

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Post by NaRnAR » Tue Sep 13, 2005 10:24 am

Very cool!

I dont know what sp. it is. At first I thought ruggie b/c of the striping pattern on his "back" and b/c of the way his eyes look. But you said no stitch marks, so I dont think that is it. Then I think cavipe.

I dont know if this will help, but it will at least give us some locations to single out. (Biology of the Land Crabs, Warren W. Burggren, Brian R. McMahon)
C. cavipes: a widely distributed species from the mainland of East Africa to the East Indies and the Ryu Kyu Islands

C. clypeatus: From southern Florida to Venezuela, and the West Indian islands. This is the only species in the western altantic. (I dont think its a pp)

C. compressus: West coast of America from Mexico/lower California, to Chile. Only species definitely known from American West Coast and restricted to this coast. (I dont think its an E)

C. perlatus: From Aldabra, Mauritus, and Seychelles thru the Indo Pacific to Samoa (I dont think its a straw)

C. rugosus: From the mainland coast of East Africa thru the Indo-Pacific to Tahiti and the Tuamotu Islands.

C. brevimanus: From Zanzibar to Tahiti and the Taumotu Islands, but not known from the East African mainland.

C. longitarsis: gives the distribution as East Indies, but there seem to be no subsequent records

C. spinosa: Various Polynesian islands and the northern coast of Australia


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Post by Guest » Tue Sep 13, 2005 12:27 pm

Kerie and I had 1 each that we couldn't quite ID. SHe sent pics to someone she knew, and confirmed it was a Cavipe. Kerie thought it was a diferent type of Rug, can't remember what she called it now....
Beautiful crbas though


Guest

Post by Guest » Tue Sep 13, 2005 12:39 pm

They're cavipes. I have some just like that.


Guest

Post by Guest » Tue Sep 13, 2005 2:41 pm

I won't even try to identify (leaning towards Cav's though). But beautiful and unique as ever. You always have amazing pics to share with us.


Hermit_of_Hermit_Crabs

Post by Hermit_of_Hermit_Crabs » Tue Sep 13, 2005 3:11 pm

I was thinking cavs too because of the deep red feelers.

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Post by HomieHermie999 » Tue Sep 13, 2005 5:28 pm

Ummm, y'all, look at the last 2 pics, their BP is opposite to all the species we have, take out one of your hermit crabs hold it to the screen and tell me that's not backwards. I say it's a new species. Also not the eyes are definately not () the look indoish to me. However, i can/very well could be wrong, but anyone care to back me up?
I am the proud owner around 30 crabbies consisting of PPs, rugs, Es, Cavs,and indos.
Also the owner of 0.4.0 Eastern Box turtles, 0.0.1 Stinkpot turtle, 3 dogs & several goldfish


Guest

Post by Guest » Tue Sep 13, 2005 6:31 pm

I have no idea but I do know there are 14 or 15 species of Coenobita.


Guest

Post by Guest » Tue Sep 13, 2005 7:23 pm

Look, here's my cav:

Image

Yours are cavipes. No doubt about it.


Guest

Post by Guest » Wed Sep 14, 2005 3:38 am

Hi :)
According to my opinion, the eyes of Julia_Crab’s C. cavipes are different than the question crabs. The eyes of the question crabs are relatively more rounded and even smaller than the eyes of C. rugosus (same size crab) and my other C.cavipes.
Image

The C. cavipes I found there (also left-handed) relatively has bigger and more oval eye shape, like this,Image


Guest

Post by Guest » Wed Sep 14, 2005 4:03 am

Wah!!! Indah! :D:D:D

They are so stunning! your crabs ALWAYS amaze me how beutiful they are!

If you ever come to Australia you can sneak me some ;) I would so pay you...


Guest

Post by Guest » Wed Sep 14, 2005 1:29 pm

I think they look a lot like Cavs....but I have never seen a Cav that wore a left-handed shell. I honestly think it may be a new species....maybe similar to Cavs...but I don't think it is a Cav. They are beautiful whatever they are!


Guest

Post by Guest » Wed Sep 14, 2005 2:50 pm

Originally I had some guesses, but my guesses aren't as good as you guys' :wink: I agree with Homie. The pinchers have me totally stumped.

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Post by HERMEZ » Wed Sep 14, 2005 4:41 pm

:shock: :shock: interesting!
CrAbBy aNd PrOuD
2 PP's~2 Violas~1 Blueberry~2 Indos~1 Ruggie
crabbin since 2005.

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Post by HomieHermie999 » Wed Sep 14, 2005 5:37 pm

Even if it is a cav is has to be a sub species because the claw they you are seeing in that picture is its food claw, not BP. So maybe like Coenbita Cavipe Julia???? lol
I am the proud owner around 30 crabbies consisting of PPs, rugs, Es, Cavs,and indos.
Also the owner of 0.4.0 Eastern Box turtles, 0.0.1 Stinkpot turtle, 3 dogs & several goldfish

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