300 MR. F. E. BEDDARD ON NEW OR [May 18, 



The individual in question agreed in every other respect with 

 P. inrlica, and the difference in the number of segments constituting 

 the chtellum appears to me rather as an indication that this structure 

 is subject to some variation in the same species than a mark of 

 specific distinctness. With regard to the dorsal pores, they are 

 present in my specimens in all the segments following the clitellum, 

 as stated by Horst ; I find, however, that the posterior border of 

 the clitellum is not only marked by a dorsal pore, but the anterior 

 border also, and that there is yet another pore in front of this ; this 

 latter appears to be the first. 



In all other respects my specimens agreed with Horst's description 

 of Ferichceta indica, and I believe them to be identical. I need not 

 describe the organs of the body severalh, as I was unable to detect any 

 points of difference. 



2. Perich^ta horsti, n. sp. 



In a collection of Earthworms sent to me from Manila by my 

 friend Mr. H. E. Barwell were a considerable nunjber of specimens 

 of a Ferichceta which I regard as of a new species. I dedicate it to 

 Dr. Hoist, whose work in this department of Zoology is well known. 

 It is a small species, the largest individuals measuring only about 2 

 inches in length. 



Tlie external characters afforded by the genital papillae serve to 

 distinguish the species ; although the value of these characters is 

 well known, it is often impossible to make use of them, as the genital 

 papillae are not always present to the full number even in worms 

 which are in other respects sexually mature. Out of seven or eight 

 individuals which I have examined and dissected, one or two had very 

 many more genital pa])ill8e than the rest ; in the absence of evidence 

 to the contrary, I regard these specimens as being in this respect fully 

 adult. The genital papillae are placed in the neighbourhood of the 

 male generative pores as in F. affiiiis ; but instead of there being 

 only a single pair to each segment, there are three distinct papillae 

 ])laced at equal distances from each other and within the circle of 

 setae. These are present on the two segments which precede the 

 eighteenth and on the four segments which follow it ; on the 

 eighteenth segment tiiere is naturally only the median papilla 

 present, the genital orifices themselves occupying the position of the 

 outer papillae. 



In Ferichata Mserialis and in P. juliani, according to Terrier \ 

 there is some resemblance in the disposition of the genital j)apillgp, 

 to the condition which is characteristic of the present species ; iu 

 both of the former there are a ])air of genital jiapillae corresponding 

 in position to the male reproductive pores and occupying a variable 

 number of segments following the 18th. I have myself had the 

 op)]ortunity of examining a number of specimens of a Ferich<eta 

 from the Philippine Islands, which I refer to the former species from 

 the fact that the ventral setae are separated by a considerable interval 

 and are of considerably greater size than the remainder, and that 

 ^ Perrier, Comptes Rendus, loc. cit. 



