【摘要】 本文报道发现于贵州的远盲属蚯蚓二个新种——少腺远盲蚓,新种Amynthas meioglandularissp.nov.和簇腺远盲蚓,新种Amynthas fasciculus sp.nov.文中作者对新种的外部形态和内部构造进行了详细的描述,并与各自的相似种类进行了比较。二个新种的模式标本均于1988年5月采于贵州雷公自然保护区。更多还原

【Abstract】 The present paper reports two new species of the genus Amynthas from GuizhouProvince, China. Type specimens are kept in Institute of Biology, Guizhou Academy of Sci-ences. 1. Amynthas meioglandularis sp. nov. （fig. 1,A-C） Length 28--51mm,diameter 1. 2--2. 0 mm,segments 66--97. Prostonmium 1/3 epilobous.First dorsal pore in 12/13. Clitellum with some setae on ventral side （XVI）. Setae fine. 30--34/Ⅲ, 37--42/Ⅴ, 46--52/Ⅷ, 45--52/XX, 43--50/XXV;14--17 （Ⅷ）be-tween spermathecal pores and 15--18（XVII）,14--18（XIX）between male pores. Male pores one pair on the ventro--lateral sides of XVIII,each situated on a large round andflat-topped papilla, which extend anteriorly to 1/2 XVII and posteriorly to 1/2 XIX. Spermathecal pores two pairs in 7/8 and 8/9,about 1/3 of circumference ventrally apart. Septa 8/9 and 9/10 absent, other thin. Caeca simple. Testis sacs two pairs in X and XI, separated. Seminal vesicles in XI and XII,well developed. Their dorsal lobes rather small.Prostate glands large,in XVI--XX. Spermathecae two pairs in Ⅷ and Ⅸ. Ampulla heart--shapedwith long and thick duct. Diverticulum shorter than main pounch, twisted in wave fashion.Seminal chamber not diffentiated from its duct conspicuously. Holotype: GZ-K00198D₁, 44mm long, 2. 0mm wide, 90 segments, setae numbers: 34/Ⅲ, 38/Ⅴ, 48/Ⅷ. 45/XX, 43/XXV;16 （Ⅷ） between spermathecal pores and 17 （XVII）, 18 （XIX）be-tween male pores. Paratype: GZ-K00198D_2-5, 4 specimens. Both holotype and paratype werecollected from Mt. Leigong （108. 13°E, 26. 24°N, Alt. 1820 m）, Leishan County, Guizhou,China on May 7, 1988. The new species is similar to Pheretima mammoporophorata Thai 1982,Pheretima dignaChen 1946 and Pheretima homoseta Chen 1938, but differs from the latters by only two sper-mathecal pores in 7/8 and 8/9, the malespores situated on the lateral part of the large roundflat--topped papillae and the diverticulum twisted in wave fashion. 2. Amynthas fasciculus sp. nov. （fig. 2,A-E） Length 134-152 mm, diameter 3. 5--5. 0 mm,segments 120--132. Prostomium 1/2 epi-lobous. First dorsal pore in 12/13. Clitellum in XIV-XVI,with some setae on the ventral side ofXVI. Setae all fine, their numbers: 30--34/Ⅲ, 36--38/Ⅴ, 38--42/Ⅷ, 43--51/XX, 52--56/XXV;13--14 （Ⅶ）, 15--16 （Ⅷ）between spermathecal pores and 11--14（XVIII）between mele pores. Male pores one pair on ventro-lateral sides Of XVIII,each situated on the central of a ratherlarge long-round papilla or on a small raised, about 1/3 of circumference ventrally apart. Tworather large papillae on the ventral side of XIX. Spermathecal pores one pair in 7/8, each situated on a tiny raised, about 2/5 of circum-ference ventrally apart. One or two papillae on the ventral side of Ⅷ or lacking. Sometims oneIarge papilla on the ventral side of X. Septa 5/6--7/8 rather thick, 8/9 and 9/10 lacking. Caeca simple. Testis sacs two pairsin X and XI, round, rather small, not communicated. Seminal vesicles in Ⅺ and Ⅻ, small,their dorsal lobes small too. Prostates all absent or in rudimentary. Accessory glands fasciledin XVIII-XIX. Spermathecae one pair in Ⅷ. Ampulla rather large, in long sac shape, about4.0mm long. Diverticulum shorter than main pounch. Seminal chamber in closed zigzag fash-ion. Accessory glands fasciled in Ⅷ or Ⅹ. In one specimen, the spermathecae all absent. Holotype G2-K00191A₂, 134 mm long, 3. 5 mm wide, 120 segments, setae number: 30/Ⅲ, 36/Ⅴ, 38/Ⅷ, 5.1/XX, 56/XXV; 13（Ⅶ）, 15 （Ⅷ）between spermathecal pores and 14 （XVIII） be-tween male pores. Paratype GZ-K00191A₁,GZ-K00191A_3-4,GZ-K00195C（1）, 4 specimens.Both holotype and paratype were collected from Mt. Leigong （108. 13°E, 26. 24°N,Alt. 1700--1800 m）,Leishan County, Guizhou, China on May 7, 1988. The new species is similar to Pheretima Chen 1946, but differs from the latterby the simple caeca and the fasciled accessory glands.更多还原