Here are shells of the Opisthostoma vermiculum, which has no common name and may be found in just one limestone karst in Malaysia.
"This species represents a unique morphological evolution in its manner of shell twisting. Most gastropod shells tightly coil according to a logarithmic spiral and have an upper limit of three coiling axes," according to ASU's site. "The shell of O. vermiculum, however, possesses four different coiling axes--the most for any known gastropod. In addition, the whorls detach three times and reattach twice to preceding whorls in a fairly consistent manner, which suggests that the coiling strategy is under some form of strict developmental-gene control."
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- Species that are obligate sexual reproducers, and that take six decades
to reach sexual maturity, have almost zero chance of becoming an
invasive species.... (Read the rest) - Posted by: DeusExMachina Posted on: 05/30/09 You are currently: a Guest | Log in | Terms of Use
Tahina Palm (tahina spectabilis)
Watersisland | 05/27/09
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Invasive Species
Dr_Zinj | 05/28/09
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Doubtful
DeusExMachina | 05/30/09
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