Amynthas andersoni choprai ( Stephenson, 1929 )

Amynthas andersoni choprai ( Stephenson, 1929)

Material examined MNP17-1051-42A10, MNP17-1053- 42A12, Yangoupokpi-Lokchao Wildlife Sanctuary, Manipur, Lat / Lon : 24.2542, 94.2992, elevation: 418.8 m, collected on 8th of October 2017; MNP17-1063-43A3, MNP17-1068- 43A8, Yangoupokpi-Lokchao Wildlife Sanctuary, Kwatha Range, Manipur, Lat / Lon: 24.3238, 94.2923, collected on 9th of October 2017, collected by Shweta Yadav ( Fig. 3 View Fig ) GoogleMaps .

Description Length 97–110 mm, diameter 4–5 mm. Total number of segments 82–110. Body colour on the anterior segment dorsally brownish purple or chestnut, later paler, also pale ventrally. Prostomium open epilobic. First dorsal pore begins in intersegmental region of xii/xiii. The setae very small, numerous, arranged without any break on dorsal and ventral side, approximately 60–65 on segment ix. The clitellum covers three segments, i.e., xiv–xvi, without dorsal pore and setae. The male pores are present in the setal zone of segment xviii, approximately one-third of the circumference of the body apart each other with 9–11 (N = 6) setae intervening, placed on broad little prominent circular porophores which covers the whole segment. The female pores sometimes paired very close to each other, while in some appears as a single whitish oval patch on segment xiv. The spermathecal pores are four pairs, in the intersegmental furrow of v/vi–viii/ix, ventrolateral, approximately one-third of the circumference apart. Genital markings single median, very prominent, often transversely oval glandular cushions, variously places across two or more of xix/xx–xxvi/xxvii successively. The distance between two genital markings is very small, only restricted to the setal zone of the intermediate segments.

Septa are as per the original description of Stephenson (1929). Oesophagus with a single gizzard between septa viii–x. The lateral intestinal caeca simple, originated in segment xxvii and extends up to segment xxiii. The last pair of heart in segment xiii. Male organs holandric, testis sac in segment x and xi, two pairs of seminal vesicles in segment xi and xii, prostates large, racemose, in segment xviii, extends from xvi–xxii, densely fissured surface, duct forming a loop extending backward. Prostatic duct opens directly, without the intermediary of copulatory bursae. The spermathecal ampulla large ovoidal sac (like original description of Stephenson, 1929), without sharp delimitation of spermathecal duct. Unidiverticulate, diverticulum originates at the extreme ectal end of the duct, tubular, with club shaped dilation at its ental end, variously looped, or arranged in somewhat zig-zag manner.