6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



Septa 8/9-9/10 present and thickly muscular. Intestinal caeca 

 simple. Testis sac of x annular. Testis sac of xi U-shaped or annu- 

 lar. Seminal vesicles of xi included in the posterior testis sac. Sper- 

 mathecal diverticulum with a short, muscular stalk, a middle portion 

 more or less regularly bent back and forth in a zigzag fashion, and a 

 terminal, ovoidal seminal chamber. Genital marking glands sessile, 

 sometimes slightly protuberant into the coelom. 



Type. — U.S.N.M. no. 20094; from Suifu, Szechuan. 



Distinguished from P. Hoiveri and P. gemella as well as from 

 P. rockcfelleri by the presence and muscularity of septa 8/9-9/10. 



PHERETIMA ANTEFIXA, n. sp. 



Length 85 to 120 mm, diameter 3^ to 5 mm. Setae: viii/12-14, 

 xiv-xv/+ or — , xvi/7-16, xvii/i2-i8, xviii/6-iO, xix/13-17, xx/36- 

 42. First dorsal pore in 12/13. Spermathecal pores superficial, one 

 pair, in 8/9. Male pores superficial, toward lateral margins of short, 

 transverse ridges. Genital markings unpaired, median, presetal on 

 iii, iv, and v. 



Fig. 2. — Pherctima antcfixa, new species. Portion of spermathecal diverticulum, 

 cleared in lactophenol. 



Intestinal caeca simple. Testis sacs of x and xi unpaired and ven- 

 tral. Spermathecal diverticulum with a short, muscular stalk and an 

 elongately tubular seminal chamber, the latter nearly straight, twisted 

 or looped. Genital marking glands stalked and coelomic. 



Type. — U.S.N.M. no. 20095, from Suifu, Szechuan. 



Distinguished from other bithecal species of Pheretima with sper- 

 mathecal pores in 8/9 by the extreme anterior location of the unpaired, 

 median genital markings. 



