14 



PROCEEDINGS OF THE NATIONAL MUSEUM 



The condition of the specimens is such as to prevent a determi- 

 nation of the relationship of the spermathecal duct to the gland 

 and the atrial (?) sac in vii. 



NOTOSCOLEX BIRMANICUS Gates 



Notoscolex birmanicus Gates, Ann. Mag. Nat. Hist., ser. 9, vol. 19, p. 609, 1927. 



Distribution. — Maymyo, F. S. S. Probably widely spread through- 

 out the Shan Plateau. 



Remarks. — There are four pairs of calciferous glands in this species 

 in segments ix-xii. Through a misprint the original description 

 stated that they occurred in "segments ix-xiii." 



NOTOSCOLEX DEPRESSUS, new species 



Description oj the type-specimen, external cliaracteristics (Cat. No. 

 19256, U.S.N.M.).— Length, 200 mm. Diameter, 3-6 mm. Num- 

 ber of segments, 334. Color: Unpigmented, 

 very light grayish white color, except on the 

 clitellum which is brownish red. 



The prostomium is prolobous and with- 

 drawn into the buccal cavity. 



The first dorsal pore is in 9/10. Pores are 

 also present in 10/11, 11/12, 12/13, and from 

 16/17 posteriorly. 



Segments v-xii, inclusive, have a deep 

 secondary furrow anterior to the setae. Seg- 

 ments vi-xii have in addition a deep second- 

 ary furrow posterior to the setae. Segments 

 viii and ix have a slighter tertiary furrow on 

 the posterior third of the segments. There 

 are numerous furrows on xvii and xviii. Segments behind xviii usu- 

 ally have two secondary furrows, one anterior to and one posterior to 

 the setae. 



The setae are eight for each segment and begin on ii. Anterior to 

 the clitellum ah is less than cd, and aa is less than be. Just posterior 

 to the clitellum ah is less than cd, and aa is about equal to two be. 

 More posteriorly still, aa and be become nearly equal. 



The clitellum begins behind the setae of xii and extends to 16/17 

 (about 4}4), dorsal pores, except on 12/13, and intersegmental fur- 

 rows are lacking. 



The male pores are not visible externally, but according to the 

 dissection open in the region be on segment xvii. 



The female pores are minute paired slits on xiii, anterior and 

 slightly interna] to seta a of the segment. 



The spermathecal pores ar*^ in 6/7 and 7/8 in line with seta c. 



Figure 5.— Notoscolex bir- 

 manicus. Genital region 



