2 PROCEEDINGS OF THE NATIONAL MUSEUM. Vol. 6C. 



in front of setae a. Setae all ventral; a-h slightly larger than c-d; 

 o.-a larger than h-c. No sculpture. Penial setae, none. Spermathecal 

 setae not differentiated. Clitelluni ringlike anteriorly, posteriorly 

 saddle sliaped. Genital zone not distinct; two parallel grooves in 

 \ XX-i XXII; groove almost straight, with a knob at each apex; 

 concavity turned ventrally. Esophagus without calcic concretions. 

 Gizzards in V and VI. Sacculated intestine in XV. Dorsal vessel 

 single, not covered with chloragogen cells. Hearts in X, XI, XII 

 with large pulsating divisions; no chloragogen cells. Nephridia, 

 meganephridia, no coelomic mantle. Testes in X and XI. Sperm- 

 funnels in X and XI. Sperm-ducts, which join at XII/XIII in a 

 conmion muscular sheath; fuse in XX/XXI. Sperm-sacs, one pair 

 preseptal in IX, one pair postseptal in XII. Sperm-masses in X 

 and XI. Oviducts in XIV. Prostates confined to one somite each ; 

 small, tubular, thicker at apex. Spermathecae, two pairs in VIII 

 and IX; distal end knoblike; the duct is very slender and long, with 

 a minute wartlike and ear-shaped diverticle situated about the 

 middle. 



ISeptal foi'Tiiula. — 



VI/VII, VII/VIII, VIII/IX, IX/X, X/XI 



DIPLOCARDIA KEYESI TEXENSIS. new variety. 



Length, 80 mm. Diameter (maximum), slightly less than 2 mm. 

 Somites, 139-146. Color, pale; no obvious pigment. Clitellum. 

 13-20; thin on midventral strip. Genital papillae, transverse band 

 between oviducal pores. Setae, anteriorly, mi :ab:hc: cd—7 : 2 : 6 : 2| ; 

 near somite 25=6:2:6:2; ventral setae absent on 21 and slightly 

 jnodified on 20 and 22. Dorsal pore, most anterior, 9/10 or 10/11. 

 Nephridiopores, dorsad of setae d; first in 2. Spermiducal pores, 

 \ 21; in seta line h. Prostate gland pores, 20 and 22; with ventral 

 setae. Oviducal pores, anterior part 14 ; slightly mesad of seta line 

 a. Spermathecal pores, near anterior margins 8 and 9; nearly in 

 seta line a. Septa, 7/8 and 8/9 strongly thickened; 6/7 and 9/10 

 less strongly thickened. Gizzards in 5 and 6. Expanded intestine, 

 begins in 19. Dorsal vessel single. Hearts, dorso-intestinal in 10-12; 

 dorsal hearts in 7-9. Nephridia, paired ; first in 2. Spermaries and 

 spermiducal funnels, paired in 10 and 11. Sperm ducts of either 

 side fuse in 21 near their openings. Prostate glands, paired in 20 

 and 22. Sperm sacs, paired in 9 and 12. Ovaries and o\4ducal 

 funnels, paii-^d in 13. Ovisacs, paired in 14. Spermathecae, paired 

 in 8 and 9; small diverticula attached at junction of ducts and sacs. 



Two specimens collected at Chillicothe, Texas, in Bermuda grass 

 sod. 



