贵州远盲属蚯蚓两新种记述(单向蚓目:巨蚓科)  

TWO NEW SPECIES OF THE GENUS AMYNTHAS FROM GUIZHOU (HAPLOTAXIDA: MEGASCOLECIDAE)

作　　者：邱江平[1] 王鸿[1] 

机构地区：[1]贵州科学院生物研究所,贵阳550009

出　　处：《动物分类学报》1992年第3期262-267,共6页Acta Zootaxonomica Sinica

摘　　要：记述了远盲蚓属蚯蚓两个新种,雅致远盲蚓Amynthas eleganis sp.nov.和大突远盲蚓Amynthas magnipapillata sp.nov.模式标本均采自贵州省梵净山。1. Amynthas elegants sp. nov. (fig. 1)Length 75 - 123 mm, diameter 3.5-4.0 mm, segments 81 - 107 (holotype: 123 mm long, 4.0 mm wide, 101 segs.). Prostomium 1/3 epilobous. Clitellum red-brown, with setae on ventral side.Setae fine, their numbers: 22- 34/Ⅲ, 33- 42/V, 32- 46/Ⅷ, 42- 48/XX, 42- 50/XXV; 16-19 (Ⅷ) between spermathecal pores and 7-10 (XⅧ) between male pores [holotype: 22/Ⅲ, 33/V, 32/V3, 45/XX, 49/XXV; 16(Ⅷ);8(XⅧ)]Male pores on ventro-lateral sides of XⅧ, each with a small round papilla, other three papillae close the porophore.Spermathecal pores one pair in 7/8, about 4/9 of circumference ventrally apart. There are two pairs of papillae on ventral side of X and XⅠ or four pairs on ⅠX - XⅡ.Septa 8/9 and 9/10 lacking, other thin. Caeca compound, having 5 - 9 long finger-shaped pounches on ventral side in XXⅦ-XXⅡ. Testis sacs two pairs in X and XⅠ, well developed. Prostate gland large in XⅦ-XX. There are a group of small accessory glands in this region, each with a small stalk. Spermathecae in Ⅷ, ampulla heart-shaped. Diverticullum longer than main part, terminal half part twisted. Having accessory glands.Holotype and 5 paratypes were collected in Mr. Fanjin (27°49'N, 108°46'E), Guizhou, China, in June 1, 1985.The new species is similar to Amynthas palmasus (Chen, 1946), but differs from the latter in the follow characters: (1) male pore on a small papilla and other three papilla close to it; (2) caeca compound, but not in palmate; (3) diverticullum longer than main part, terminal half part is weak or closed zigzag fashion.2. Amynthas magnipapillata sp. nov. (fig. 2)Length 84 - 167 mm, diameter 3.5 - 4.0mm, segments 76 - 103 (holotype. 167 mm long, 4.0 mm wide, 103 segs.). Prostomium 1/3 epilobous. First dorsal pore in 12/13. Clitellum red-brown, without setae on it.Setae fine, their numbers: 34-36/Ⅲ, 32-42/V, 42-46/Ⅷ, 48-54/XX 43- 52/XXV; 10-14 (Ⅷ) between spermathecal pores and 9-12 (XⅧ) between male pores [holotype: 34/Ⅲ, 32/V, 42/Ⅷ, 54/XX, 52/XXV; 14 (Ⅷ);

关 键 词：单向蚓目 巨蚓科 远盲属 新种 

分 类 号：Q959.193[生物学—动物学]