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Margarites_groenlandicus Miêu tảThe wavy top shell is thin-shelled and rather small with a maximum length of 1.9 cm (¾ inch) and a compressed spire. The color of the glossy shell is cream to brown. It contains 4-5 whorls, with the body whorl the largest. The sutures are wavy. The shell is smooth or with about 12 smooth spiral ridges. The broad umbilicus is funnel-shaped. The nacreous aperture is oval with the long axis inclined to the left. It is also prosocline, i.e. with the growth lines leaning forward (adapically) with respect to the direction of the cone. The outer lip is thin. The sexes are separate but seldom differ externally. They are at the same time hermaphrodites but self-fertilization is prevented by anatomical mechanisms. The species is a suspension or deposit feeder.
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Margarites_groenlandicus Miêu tảLiên quan
Margaret Thatcher Margaret Atwood Margaret Tudor Margaret Beaufort Margarethe của Phổ Margarita Teresa của Tây Ban Nha Margaret Court Margaret Hamilton (nhà khoa học) Margarete của Áo Margaret của WessexTài liệu tham khảo
WikiPedia: Margarites_groenlandicus http://www.marinespecies.org http://www.marinespecies.org/aphia.php?p=taxdetail...