THE OLIGOCH^TA TERRICOL^. PART I. 195 



P. alhohrunnea. The spermathecal pouch is not always identical 

 in form; it is sometimes oval and sometimes conical, the apex 

 in this case occupying the blind end. The duct portion is sharply 

 marked off from the pouch by its narrower caliber, but this 

 region is not markedly muscular. The diverticulum is a little 

 longer than the pouch and of rather peculiar shape. Each di- 

 vex'ticulum is sharply divided into the terminal chamber and a 

 duct. The terminal chamber is oval and apparently rather flat- 

 tened which gives it a racket-like form. This is enhanced by 

 the fact that the duct is at first very narrow and broadens toward 

 its external orifice. 



Pheretima monticola sp. nov. 



Two examples of this new species were collected on Mount 

 Pulog at an altitude of 2,880 meters, "on the grassy summit." 

 It is a stoutish worm, 130 millimeters long and 7 millimeters in 

 diameter at the head end. The color is pale brown with some 

 purplish-brown patches in the postclitellar region. The clitellum 

 is dark purplish-brown. The setse form complete circles and are 

 typically perichsetous, their arrangement not being in any way 

 divergent from the normal. The clitellum occupies the whole of 

 segments XIV — XVI, and is entirely without setse. 



The male pores are very conspicuous and widely separated, 

 lying of course upon the XVIIIth segment. 



The genital papillae of this species are highly characteristic. 

 They are only shown at their full development, I imagine, in one 

 example of the two. In that specimen there is a pair of papillae 

 on segment XVII and a pair upon each of segments XIX, XX. 

 The arrangement, in fact, is somewhat like that of P. biserialis, 

 P. forbesi, P. polytheca, and P. malayana. But the present spe- 

 cies has fewer of the pre- and post-genital papillse than any of 

 those mentioned. The papillse are not precisely in line with the 

 male pores. They are a trifle to the inside of them. In addition 

 to these 3 pairs there is a fourth pair upon segment IX. I 

 examined very carefully the adjacent segments to see if there 

 were others, but could find none. It may be that other specimens 

 will show a greater development of papillse than those reported 

 upon here. The intersegmental septa of this species differ from 

 those of many others, for none is missing and the gizzard in 

 consequence lies entirely in segment VIII. There is no doubt 

 whatever about this, for it is quite easy to count the septa and to 

 refer them to the proper boundary lines between the segments. 

 None of the septa in front of the gizzard is especially thickened, 

 but those which encircle the sperm sacs are rather thicker and 



