Totakura Venkateswara Rao, Reddy Yenumula Ranga, Shaik Shabuddin
Department of Zoology, Acharya Nagarjuna University, Nagarjunanagar 522 510, India; Email: unknown.
Department of Zoology, Acharya Nagarjuna University, Nagarjunanagar 522 510, India; Email:
Zootaxa. 2014 Jun 25;3821(5):501-37. doi: 10.11646/zootaxa.3821.5.1.
To date, only 16 species of the very diverse family Parastenocarididae have been reported from the Indian subcontinent. This paper gives an illustrated description of three new species, viz. Parastenocaris edakkal n. sp., Proserpinicaris corgosinhoi n. sp., and Proserpinicaris karanovici n. sp., and discusses their position in the respective genera. While the first two species were found sympatrically in the Edakkal Cave in Kerala State of southwestern India, the third one was collected from a farm bore in the riparian zone of the River Krishna in Andhra Pradesh State of southeastern India. The Palaearctic genus Proserpinicaris Jakobi, 1972 sensu Karanovic, Cho & Lee, 2012, is being reported for the first time from India. Parastenocaris edakkal n. sp. belongs to the brevipes-group of the genus Parastenocaris Kessler, 1913 sensu Lang, 1948 et Reid, 1995. It is chiefly characterized by the male leg 4 basal chitinous complex consisting of one large sclerotized plate together with two small accessory lobes, and one strong, hook-like spine at the inner distal corner, and the endopod is membranous and ventricose in outline, with bulbous proximal part drawn out distally into biserrulate, pointed structure. Proserpinicaris corgosinhoi n. sp. can be easily separated from its congeners, inter alia, by the short caudal rami (c.1.2-1.4 times as long as wide), bearing 2 unequal lateral setae (I, III) inserted proximally; male leg 3 proximal segment is stumpy and has one prominent tubular pore on proximal anterior surface; and leg 4 endopod is short, membranous and somewhat conical, and the hyaline structure is relatively large, foliaceous and lies rather close to endopod. Proserpinicaris karanovici n. sp. has its own unique set of characters, of which the following are noteworthy: the caudal rami in both sexes are about 2.6 times as long as wide, gradually tapering, with only 2 lateral setae inserted in proximal half; and the male leg 4 endopod is nearly as long as first exopodal segment, membranous, with lateral margins fringed with tiny spinules, and the hyaline structure is short, leaf-like and occurring close to, and overlapping, the endopod.
迄今为止，在种类繁多的副新糠虾科中，仅16个物种在印度次大陆被报道过。本文对三个新物种进行了图文描述，即埃达卡尔副新糠虾（Parastenocaris edakkal n. sp.）、科戈西尼奥伊原糠虾（Proserpinicaris corgosinhoi n. sp.）和卡拉诺维奇原糠虾（Proserpinicaris karanovici n. sp.），并讨论了它们在各自属中的地位。前两个物种在印度西南部喀拉拉邦的埃达卡尔洞穴中同域被发现，而第三个物种是从印度东南部安得拉邦克里希纳河河岸带的一个农场钻孔中采集到的。古北区的原糠虾属（Proserpinicaris Jakobi，1972，依据Karanovic、Cho和Lee，2012）首次在印度被报道。埃达卡尔副新糠虾（Parastenocaris edakkal n. sp.）属于副新糠虾属（Parastenocaris Kessler，1913，依据Lang，1948及Reid，1995）的短足类群。其主要特征为雄性第4对步足基部几丁质复合体由一块大的硬化板以及两个小的附属叶组成，在内侧远角有一根强壮的钩状刺，内肢为膜质且轮廓呈囊状，近端膨大部分向远端延伸成具双锯齿的尖状结构。科戈西尼奥伊原糠虾（Proserpinicaris corgosinhoi n. sp.）可轻易与其同属物种区分开来，尤其是通过短的尾叉（长约为宽的1.2 - 1.4倍），在近端着生2根不等长的外侧刚毛（第1、3根）；雄性第3对步足近端节短粗，在近端前表面有一个明显的管状孔；第4对步足内肢短，膜质且略呈圆锥形，透明结构相对较大，呈叶状且紧贴内肢。卡拉诺维奇原糠虾（Proserpinicaris karanovici n. sp.）有其独特的一系列特征，其中以下几点值得注意：两性的尾叉长约为宽的2.6倍，逐渐变细，仅在近端半部着生2根外侧刚毛；雄性第4对步足内肢几乎与第一外肢节等长，膜质，外侧边缘有微小的刺突，透明结构短，呈叶状且靠近并与内肢重叠。
