lO 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



5 to 6 circular to oval, flat-surfaced markings in each copulatory 

 chamber; one large, oval marking on the dorsal (morphologically 

 anterior) wall of each spermathecal chamber. 



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

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



Fig. 7. — Pherctima grahami, new species. Portion of spermathecal duct, cleared 



in lactophenol. 



elongately tubular seminal chamber, the latter often looped in a regu- 

 larly zigzag fashion. 



Type. — U.S.N.M. no. 20100, from Da Shiang Lin Pass, Szechuan. 



Distinguished from P. vulgaris by the unpaired, ventral testis sacs 

 and the large, club-shaped spermathecal chambers with their large, 

 oval genital markings. 



PHERETIMA GUILLELMI (Michaelsen), 1895 



A good species. Distinguished from P. lioullcti (E. Perrier), 1872, 

 with which it has been confused, by the limitation of the male pore 

 invaginations to the parietes (in P. houllcti the male pores are in copu- 

 latory chambers). P. houlleti Stephenson, 1925, and P. ichangcnsis 

 Fang, 1933, must be included in the synonymy. Amyntas houlleti Mi- 

 chaelsen, 1899, is probably also a synonym. P. vulgaris agricola Chen, 

 1930, is probably also, at least in part, a synonym. P. guillehni Chen, 

 1933, is a composite of P. guillehni and P. vulgaris. 



PHERETIMA HONGKONGENSIS Michaelsen, 1910 



The unpaired testis sac of x is ventral and median. The unpaired 

 testis sac of xi is U-shaped, the limbs of the U reaching to the dorsal 

 blood vessel. The seminal vesicles of xi are included within the 

 posterior testis sac and are surrounded by a layer of testicular 

 coagulum. 



The holotype is either not fully sexual or is not quite normal. 



