ART. 10 EARTHWORM FAUNA OF BURMA — GATES 13 



are larger, whitish, ovoid bodies with the long axis parallel to the 

 long axis of the body. The papillae extend from just posterior 

 to the setae of x to 9/10, which is displaced slightly forward just in 

 front of the papillae. The male porophores are incised by concentric 

 circumferential furrows. The inner surface of the anterior papillae 

 is smooth, flat, oval in outline, and the outer surface is incised by 

 three or four longitudinal furrows. 



On the posterior border of vii, in contact with 7/8, and extending 

 from just external to d to halfway between h and c on each side, is an 

 oval smooth surfaced area marked off by a circumferential furrow. 



Internal anatomy. — Septa 5/6, 6/7, 7/8, and 8/9 are thickened. 



The gizzards are four in xvii-xx. The wall of the alimentary 

 canal is thickened and whitish in xxi. 



The last pair of hearts is in ix. 



The testis sacs are asymmetrical. The sac on the right side is 

 entirely in x. The sac on the left side is sharply constricted by 

 9/10 so that the anterior third of the sac lies in ix. The vas deferens 

 is coiled into a globular mass, nearly half the size of the testis sac, 

 or that portion of the sac which lies in x. The prostates have a 

 finely granular surface, are slightly flattened or compressed antero- 

 posteriorly, and stand erect in segment x. The vas deferens passes 

 into the side of the prostate facing the nerve cord. The prostates 

 are constricted as 



they pass into the ^— v. ^~^ z' "n 



parietes. \ \{ ] (^ ^C (^ [\\ 



The ovarian cham- \ / vJ^^^"^"--^^— — ^ \ M ll W J 

 ber is closed dor- \ . J <• \ J h \Uc^ -^ 



sally. The ovisacs Figlre4.— Drawidatumida. o. prostates X lO. 6. Atrium X ABOUT 

 ,1,1 , 14. c. Openings on the papilla of vn x about 150 



extend through seg- 

 ment XV. The spermathecal ampulla is small and nearly globular. 

 The duct is coiled under the ampulla and slightly looped as it passes 

 along the septum. In and just anterior to septum 7/8, on the pari- 

 etes in the region of cd, is a hard oval body. The atrium is attached 

 to the roof of this body close to 7/8. The specimen is too poorly 

 preserved to permit an adequate determination of the relations 

 between the structures involved in this region. 



Distribution. — Moulmein (October) . 



RemarJcs. — The length varies from 80-105 mm. and the diameter 

 from 4-43^ mm. The ridges on x and xi seem to be characteristic. 

 The ridges with the papillae project from the body wall 1^-2 mm. 



The gizzards are four in xvii-xx, xviii-xxi, or five in xvii-xxi. 



In some specimens at least the finger or sac-shaped structure in 

 vii passes into the oval glandular body on the parietes in and near 

 7/8 and underneath the papilla on vii, and the surface of the papilla 

 shows under high powers of the microscope two adjacent pores. 



