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中国喇叭螺属的研究及一新种记述
Studies on the Genus Boysidia Ancey from China, with Description of One New Species (Pulmonata: Stylommatophora: Pupillidae)
方福康1, 王军旺2, 陈元晓1*
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DOI:
作者单位:1. 昆明医科大学细胞生物学与医学遗传学系, 昆明 650500;
2. 浙江清凉峰国家级自然保护区管理局, 浙江临安 311321
中文关键字:腹足纲;肺螺亚纲;柄眼目;虹蛹螺科;喇叭螺属;新种
英文关键字:Pulmonata; Stylommatophora; Pupillidae; Boysidia (Bensonella); new species
中文摘要:笔者整理和厘清了Boysidia Ancey,1881已记载的中国喇叭螺属的种类,共计24种,其中有1新种,即清凉峰贝喇叭螺新种Boysidia(Bensonella) qingliangfengensis sp. nov.,对喇叭螺各亚属、贝喇叭螺亚属的已知种列出检索表,并对新种的形态特征、栖息环境进行了记述,与相似种进行了讨论。新种模式标本分别保存在中国科学院动物研究所标本馆和昆明医科大学细胞生物学与医学遗传学系标本室。
英文摘要:Boysidia Ancey, 1881 is a small group in Chondrininae and distributes in South and Southeast Asia. A total of 24 species were recorded in south Qinling Mountains, China. Among of these species, one was identified as a new record. Descriptions of this new species and other 8 species of Boysidia (Bensonenella) were given in the text. The type specimens of the new species were kept in Institute of Zoology, Chinese Academy of Sciences, and the Department of Cell Biology and Medical Genetics, Kunming Medical University.
Key to subgenus of Boysidia (Boysidia), Boysidia (Bensonella), Boysidia (Paraboysidia) and Boysidia (Dasypupa)
1. Columellar tooth with node-shaped on aperture deep, angular tooth and parietal tooth united into 2 crescent knife-shaped tooch......Boysidia (Dasypupa) Thompson and Dance, 1983
Columellar tooth without node-shaped on aperture deep......2
2. Columellar tooth oblique......3
Columellar tooth not oblique, horizontal......Boysidia (Paraboysidia) Pilsbry, 1917
3. Angular tooth and parietal tooth united into 1 flake-shaped tooch, palatal tooth with hook-shaped......Boysidia (Bensonella) Pilsbry, 1900
Angular tooth and parietal tooth independence, parallel......Boysidia(Boysidia)Pilsbry, 1917
Boysidia (Bensonella) qingliangfengensis sp. nov. (Fig. 1: A-E)
Holotype: alt. 3.40 mm, diam. 2.10 mm; alt. of aperture 1.15 mm, diam. of aperture 0.75 mm. Collected from Longtangshan town, Linan city, Qingliangfeng Nature Reserve (30°01'N, 118°80'E), June 26, 2013.
Paratypes: 126 specimens. alt. 3.30-3.45 mm, diam. 2.00-2.20 mm; alt. of aperture 1.10-1.20 mm, diam. of aperture 0.700-0.815 mm. Collected from Longtangshan town, Linan city, Qingliangfeng Nature Reserve (30°01'N, 118°80'E), June 26, 2013.
Etymology: The name of the new species was based on Longtangshan town, Linan city, Qingliangfeng Nature Reserve from where the specimens were collected.
Shell small, thin, luster, elongatedly conic. 5(1/2) whorls, moderately convex, spire long, the body whorl inflated, the bottom of body whorl not extended to aperture, and not form a bell-shaped. Apex blunt, embryo-whorls (1-2(1/2)) increased slowly, smooth, striae absent. Suture deep. Shell yellow brown or pale yellow in colour. Aperture elliptical, aperture margin thick, slightly expanded and not reflexed, with 16 rib-strias on the neck of aperture. With 14 teeth in the aperture: 1 little nipple-formed infraparietal lamella, l large flake-formed parietal lamalla, 1 big flake-formed angular lamella, 1 small nipple-formed twin-lamella, 2 small nipple-shaped parallel lamella on right aperture margin, 2 small nipple-shaped suprapalaral plicae on the parallel lamella down, 1 big nipple-shaped upper palatal plicae and 1 small nipple-formed interpalatal plicae, 1 small nipple-shaped lower palatal plicae on aperture botton. 1 big nipple-formed basal plicae on the below part of columella margin nearly, 1 small nipple-shaped columellar lamella on the columella margin above, 1 small nipple-formed subcolumellar lamella on the columellar lamella down. Umbilicus big, with hole-formed, and the umbilicus was not covered by columella margin.
Habitat: Boysidia (Bensonella) qingliangfengensis sp. nov., as other Boysidia (Bensonella) species, usually lives on limestone areas of mountainous regions, in dark, moist habitats with bryophyte and lichen, in the cracks of the rocks or under the faller leaves.
This new species is bigger than Boysidia (Bensonella) plicidens (Benson, 1849), but differs obviously from the bigger size: the new species shell with whorls 5(1/2), alt. 3.40 mm, diam. 2.10 mm; alt. of aperture 1.15 mm, diam. of aperture 0.75 mm. Aperture elliptical, aperture margin thick, slightly expanded and not reflexed, with 16 rib-strias on the neck of aperture, with 14 teeth on the aperture: 1 little nipple-formed infraparietal lamella, l large flake-formed parietal lamalla, 1 big flake-formed angular lamella, 1 small nipple-formed twin-lamella, 2 small nipple-shaped parallel lamella on right aperture margin, 2 small nipple-shaped suprapalaral plicae on the parallel lamella down, 1 big nipple-shaped upper palatal plicae and 1 small nipple-formed interpalatal plicae, 1 small nipple-shaped lower palatal plicae on aperture botton. 1 big nipple-formed basal plicae on the below part of columella margin, 1 small nipple-shaped columellar lamella on the columella margin above, 1 small nipple-formed subcolumellar lamella on the columellar lamella down. The latter with 5 whorls (alt. 2.00 mm, diam. 1.50) in small size, and the aperture irregular, subtriangular, having 9 folds teeth: 3 parietal lamellae, of which the upper two are long; one small dentiform columellar lamellae; five palatals, of which two subbasal plicae being minute. Basal margin has a callous outside. Umbilicus narrow.
2015,(): 688-694 收稿日期:2014-12-24
DOI:10.11984/j.issn.1000-7083.20140580
分类号:Q959.212
基金项目:国家自然科学基金项目(31160425, 31101616);云南省科技厅应用基础研究基金项目(2010ZC108);云南省教育厅科学研究基金项目(2010Y208)
作者简介:*通讯作者:陈元晓,男,教授,硕士生导师,研究方向为医学生物学、贝类学,E-mail:cyx616@hotmail.com
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