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Words near each other
・ OPLS
・ Opisthostoma fraternum
・ Opisthostoma goniostoma
・ Opisthostoma grandispinosum
・ Opisthostoma hosei
・ Opisthostoma inornatum
・ Opisthostoma jucundum
・ Opisthostoma lituus
・ Opisthostoma mirabile
・ Opisthostoma otostoma
・ Opisthostoma perspectivum
・ Opisthostoma pulchellum
・ Opisthostoma shelfordi
・ Opisthostoma simplex
・ Opisthostoma stellasubis
Opisthostoma vermiculum
・ Opisthoteuthis californiana
・ Opisthothelae
・ Opisthothylax immaculatus
・ Opisthotia
・ Opisthotonus
・ Opisthotriton
・ Opisthotropis
・ Opisthoxia
・ Opisthoxia amabilis
・ Opistoclanis
・ Opistognathidae
・ Opistognathus
・ Opistognathus whitehurstii
・ Opistophthalmus


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Opisthostoma vermiculum : ウィキペディア英語版
Opisthostoma vermiculum

''Opisthostoma vermiculum'' is a species of minute land snail with an operculum, a terrestrial gastropod mollusk or micromollusk in the family Diplommatinidae.
The shell possesses four different coiling axes; the most for any known living gastropod. This member of the Diplommatinidae family is endemic to Malaysia. Its natural habitat is tropical limestone outcrops.〔〔http://species.asu.edu/2009_species06〕
==Shell description==
When the species was discovered, thirty-eight specimens were collected: the shell shapes showed low variation. The snail shell is high and wide.
This is the first snail reported that has a shell which shows four discernible coiling axes. The body whorls of the shell thrice detach and twice reattach to preceding whorls without any support. The detached whorls coil around three secondary axes in addition to their primary teleoconch axis. All specimens showed these features in a homogeneous way.
''Opisthostoma vermiculum'' was selected as one of ''"The Top 10 New Species"'' described in 2008 by The International Institute for Species Exploration at Arizona State University and an international committee of taxonomists.〔http://asunews.asu.edu/20090522_top10species〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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