Monodonta neritoides is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[2][3]
The height of the shell attains 16 mm. The imperforate shell has a semiglobose shape and is very oblique. The shell is smooth, black, painted with numerous white zigzag lines. The five whorls rapidly widen.. The spire is retuse. The aperture is semiovate. The thin lip is duplicated and coarsely crenate. The flat columella is grooved by a parallel sulcus, terminating in an acute tooth below.
The shell is very similar to a Nerita on account of its semiglobose form, very obtuse spire, flat base and rapidly widening whorls. The uppermost whorls are flat, and spirally striate. The penultimate whorl is convex. The last whorl is completely smooth, obliquely descending, flatly depressed above, almost concave. The aperture is almost exactly like that of Monodonta canalifera. The outer lip is on its outer part, inside the edge lined with mother-of-pearl, visibly furrowed.. On this part borders a white porcellanous coat, underneath standing out like a rib, on the base cut by two furrows. The throat is nacreous all around. The columella is compressed, flat, arcuate, produced into a sharp tooth below, and outwardly with a furrow parallel with its free margin. The color is black, with narrow white dense zig-zag curved streaks. The spire is pure black.
There are forms with more elevated whorls, departing a little from the usual form.[4]
This marine species occurs off Taiwan, Korea and Japan.
Monodonta neritoides is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Monodonta neritoides is een slakkensoort uit de familie van de Trochidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1849 door Philippi.
Bronnen, noten en/of referenties
黑草席钟螺（学名：Monodonta neritoides），又名黑蜑馬蹄螺[3][4]或拟蜒单齿螺[5]，是一個海螺的物種，屬於鐘螺目鐘螺科的海洋腹足綱軟體動物[6][2][7]。
螺殼殼體小型[5]，高16 mm。脐部乳白色，下部微黄，中部微凹[5]，但無臍孔[6][5]。呈半球形、近卵圓形[6]。質厚，有五層螺層，體螺層略微膨脹。殼外表光滑、色黑。與草蓆鐘螺有點不太相似：橫螺肋不明顯，但具有白色、黃色紅色等「之」字形細小斑紋組成的橫紋圍繞螺層。 殼口完整，具白色真珠光澤；軸唇具一明顯的齒狀突起，從外唇到底唇有齒狀突起，但底唇平直[6]。 口蓋角質，圓而薄[6]。
本物種見於日本、韩国[6][8]、中国大陆[6][9]的浙江舟山、台州列島[5]、福建東山[5]和廣東[5]、台湾[6][10]的蘭嶼[3][4][11]、綠島[11]、澎湖[12]及越南[6]的慶和省和平順省各地的海岸[13]。
棲息於淺海珊瑚礁、潮間帶至潮下帶淺水域[6]。
