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Show 1886.] DR. A. G. BOURNE ON INDIAN EARTHWORMS. 667 PERICHJETA STUARTI, sp. n. The clitellum extends over somites xiv., xv., and xvi.; it is very well marked. There are two pairs of male pores in somites xvii. and xix., respectively ; these are all four placed upon a whitish, slightly depressed patch, which thus extends over the greater portion of somite xvii., the whole of somite xviii., and the greater portion of somite xix. Connected with each of these pores is a large coiled prostatic gland, which extends backwards in each case through some 8 or 9 somites. There is a single median oviducal pore in the anterior portion of somite xiv. There are two pairs of spermathecae, situated in somites vii. and viii., respectively. They do not possess any appendages, but present a sort of frilled appearance around the base. Tbe gizzard is situated in somite x. In somites xxiii.-xxvi. (?) there are four pairs of special diverticula on the dorso-lateral portions of the intestine. I have not observed any nephridia. There are about 52 setae in each somite arranged with small dorsal and ventral gaps; setse are present on the clitellum. There are no special setae in somite xviii., but in the anterior portion of somite viii. (i. e. between the anterior and posterior pair of spermathecae) there are two groups of large modified setae. Where these project on the surface, there is a papilla which in some specimens becomes very well marked. Length 148 millim., circumference 15 mm.; number of somites 111. Hab. Yercaud, at an elevation of about 5000 feet, and also down the ghaut as low as Salem (1000 ft.). I have specimens from Salem. This is an exceedingly common worm in this region. It occurs in dry ground, and often under large stones. PERICHJJETA BURLIARENSIS, sp. n. The clitellum extends over somites xiv., xv., xvi., and xvii., and is well marked. The male pores are situated in somite xviii.; segments xix., xx., xxi., and xxii. bear papillae (apertures ?). The oviducts open in somite xiv. by a single median pore. The spermathecae are placed in somites vi., vii., viii., and ix.; they present a single appendage. I am unable at present to say anything about nephridia. The gizzard is situated in somite x. There are a single pair of intestinal caeca in somite xxvi., reaching forwards to somite xxiv. There are 38 to 40 setae per somite. Setae are entirely absent from the clitellum. I find no special setae in somite xviii., but there are two pairs of groups of enlarged setae in somites vii. and viii., respectively. There is a large ventral gap, especially in the somites immediately following the male pores, where the most ventrally placed setae are larger than the others. |