摘要
作者在甘肃省岷县境内发现蛞蝓一新种,命名为斑纹野缨蛞蝓。它与网纹野缨蛞蝓 Deroceras (Agriolimax) reticulatum(Mǖaller, 1774)相似,但新种个体较小,并且其齿式、阴茎结构、体色上均有很大差异。该新种生活在海拔2300m以上的山区、农田、灌木丛、草丛中,喜潮湿多腐殖质的环境。危害当归的叶、芽、茎等。
In the present paper, a new species of slug is described. The materials studied were collected by Mr. Zhang Guang-yue and Mr. Zhong Tie-sen from Minxian County, Gansu Province, China in October 1986. Type specimens are deposited in the Institute of Zoology, Ac-adenria Sinica, Beijing.Deroceras (Agriolimax) stigmatoida sp. nov. (figs. 1-5)Holotype: Length after alcoholic immersion 24.4 mm, diameter 5.1 mm; Minxian County (34°17'N, 104°25'E), Gansu Province, China, October 1986.Paratypes: Five specimens, length after alcoholic immersion 14.3-22.4mm; diameter 3.6-4.1 mm; Minxian County (34°17'N, 104°25'E), Gansu Province, China, October 1986.Body small, long and fusiform, light yelow or yellowish brown in colour, with retiary flecks and ruga at the back of the body, and with a network of mottled pattern of dark brown grooves, spots and streaks. Length of mantle about two thirds of the body length, with dark spots at the mantle. Respiratory orifice in the middle of right side. Tail ridge acute. Concentric striae of shell indistinct. Penial long, oviform. Seminal vesicle globular. Jaw yellowish brown, without ribs. Radula with 1 central tooth, 24 lateral teeth and 25 external marginal teeth, no ectocones on external marginals. Sole light yellow. Mucus colourless or milky-white when animal irritated.The new species closely resembles Deroceras (Agriolimax) reticulatum (Mullcr, 1774), but differs from the latter chiefly in the length of the body being much smaller and with retiary flecks and ruga, in having 101 instead of 93-110 rows of radular teeth, each row being provided with 24 instead of 14-22 lateral teeth and 23 instead of 21-32 marginal ones on each side, and the penis without a small sulcate.
出处
《动物分类学报》
CSCD
1989年第4期408-41-,共1页
Acta Zootaxonomica Sinica
关键词
腹足纲
野缨蛞蝓属
新种
Gastropoda Pulmonata Stylommatophora Agriolimacidae Deroceras (Agriolimax) new species
