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Show 1899.] ON TWO EARTHWORMS. 807 we have called attention in the present communication. Those are the two species Periongx excavatus aud Perichceta indica. But hi the case of the former species the number of what we may there tairly term abnormal specimens was small in proportion to those winch were normal ; only 18 out of about 430. In erichceta indica the occasional absence of tbe " prostate" gland is more frequent. TRICHOCHcETA HESPERIDUM. The genus Trichochceta was founded by one of us some years since and two species were described. F< l.o*. XII XXlM x y yi KXXII Trichochata hesperidum, ventral view of anterior segment. CL, clitellum. 1 Beddard, " Two new Genera and some new Species of Earthworms,'' Quart J. Micr. Sci. xxxiv. p. 252; and " On some new Species of Earthworms from various parts of the World," P. Z. S. 1892. p. 701. |