贵州沟螺属一新种记述(前鳃亚纲,中腹足目,环口螺科) 被引量：1

A NEW SPECIES OF THE GENUS DIORYX BENSON FROM CHINA (PROSOBRANCHIA,MESOGASTROPODA,CYCLOPHORIDAE)

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摘要在整理贵州省荔波县茂兰喀斯特森林自然保护区陆生贝类标本时,经鉴定发现1新种,即茂兰沟螺Dioryx maolanensis sp.nov.,文中对新种形态特征、栖息环境进行了描述,并对其相似种进行了分析和讨论。 This paper deals with a new species of the genus Dioryx collected from Guizhou Province, China. Type specimens are deposited in the Institute of Zoology, Chinese Academy of Science, China.Dioryx maolanensis sp. nov.（Figs. 1-6）Holotype, alt. 5.16mm, diam. 4.16mm, diam. of aperture 1.33mm. Paratypes 6 specimens, alt. 4.50-5.33mm , diam. 3.5-5.16mm , diam. of aperture 1.00-1.67mm , collected from Maolan Town, Libo County （25°03′N, 108°00′E ）, Guizhou Province, China, 9 July 2001.Shell small, dextral, thick, globose conoid. Whorls 312, moderately convex, spire high, body whorl very convex. Shell yellowish in colour, worn specimens ashen-white, surface with very distinct vertically thin ribbed-line and growth line, protoconch smooth, without spiral line. Apex blunt. Suture deep, with a 0.83-1.00mm worm-form projection at suture of body whorl. Aperture circular, thick, with two lips, somewhat expanded and reflexed. Operculum circular, cuticular, yellow brown in colour, and the inner surface has papule-form projection, and concentric circles lines indistinct visible in the surface. Umbilicus small, crevice-formed. Jaw thin flake-shaped, transparent, the surface with scale-shaped structure. The radula tape-shaped, circular, with 1 central tooth, and with 7 smaller cusps on apex; 2 lateral teeth, and with 5 smaller cusps on apex; 2 marginal teeth,and with 4 smaller cusps on apex.This new species is similar to Dioryx ruyangensis Hu, Yin and Chen, 2004, but differs obviously from the latter in the small size; the shell with whorls 312, length 5.16mm, diam. 4.16mm; diam of aperture 1.33mm; surface of shell with very distinct vertically thin ribbed-line and growth line, with a 0.83-1.00mm worm-form projection at suture of body whorl. Jaw thin flake-shaped, transparent, the surface with scale-shaped structure. The radula tape-shaped, circular, with 1 central tooth, and with 7 smaller cusps on apex; 2 lateral teeth, and with 5 smaller cusps on apex; 2 marginal teeth,and with 4 smaller cusps on apex. The shell of the latter species with whorls 4-412, length 7.10mm, diam. 5.50 mm; diam of aperture 1.75mm; with a 2.80mm worm-form projection at suture of body whorl.

作者罗泰昌张卫红周卫川

机构地区贵州师范大学生命科学学院新疆大学生命科学与技术学院福建省出入境检验检疫局

出处《动物分类学报》 CSCD 北大核心 2009年第4期862-864,共3页 Acta Zootaxonomica Sinica

基金贵州省高校发展专项资金资助自然科学类重点科研项目(黔教科2004112) 福建省自然科学基金项目(2009J0104)资助

关键词前鳃亚纲中腹足目环口螺科沟螺属新种 Prosobranchia Mesogastropoda Cyclophoridae Dioryx new species.

分类号 Q959 [生物学—动物学]

引文网络
相关文献

参考文献5

1Benson,W. H. 1859. A sectional distribution of the genus Alycacus Gray, with characters of 6 new species and of other Cydostomidae, collected at Darjiling by W. T. Blantord, Esq., Ann. Mag. Nat. Hist. Lond., 3 (3) : 176-184.
2陈德牛,张国庆.西藏陆生贝类五新种记述(腹足纲:中腹足目,柄眼目)[J].动物分类学报,2001,26(1):11-17. 被引量：7
3胡自强,银海强,陈德牛.中国沟螺属一新种记述(前鳃亚纲,中腹足目,环口螺科)[J].动物分类学报,2004,29(4):704-705. 被引量：2
4Heude, P. M. 1882-1885. Notes sur les mollusques terrestres de la vallee du Fleuve Bleu., Mere. D'Hist. Nat. l'Emp. Chinois., 97-98. p1. 24, figs. 6, 6a, 6b, 6c-7.
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二级参考文献9

1陈德牛，中国经济动物志.陆生软体动物，1987年，1页
2Yen T C，Ahb Senckenb Nat Ges，1939年，444卷，98页
3Yen T C，Mitteil Zool Mus Berlin，1938年，23卷，438页
4Chen, D-N, Zhang, G-Q and Wang, H-J 2002. Two new species of land snails from Gansu Province, China (Prosobranchia: Mesogastropoda: Cyclophoridae). Acta Zootaxonomica Sinica, 27 ( 2 ):221-224.[陈德牛,张国庆,王洪建,2002.
5Hu, Z-Q, Yin, H-Q and Chen, D-N 2003. A new species of land snail from Mangshan Mountain, Hunan Province, China (Prosobranchia,Mesogastropoda, Cyclophoridae). Acta Zootaxonomica Sinica,28(2):232-234[胡自强,银海强,陈德牛,
6Heude, P. M. 1882-1885. Notes sur les mollusques terrestres de la vallee du Fleuve Bleu. , Mem. d' Hist. nat. l' Emp. Chinois. , 97-98,pl. 24, figs. 6, 6a, 6b, 6c-7.
7Luo, T-C, Chen, D-N, Zhang, G-Q 2002. A new species of Cyclophoridae from Guizhou Province, China (Prosobranchia: Mesogastropoda: Cyclophoridae). Acta Zootaxonomica Sinica, 27 (1):50-52.[罗泰昌,陈德牛,张国庆,2002.贵州环
8Yen, T. C. 1939. Die Chinensisch Land-und SuBwasser-Gastropoden des Natur-Museum Senckenberg. Abh. Senckenb. Natur. Ges., 444:28-29, pl. 2, f. 28-30.
9Benson, W. H. 1859. A sectional distribution of the genus Alycaeus Gray, with characters of 6 new species and of other Cyclostomidae,collected at Darjiling by W. T. Blanford, Esq. , Ann. Mag. Nat.Hist, Lond., (3) 3: 176-184.