NO. 3 NEW EARTHWORMS FROM CHIXA GATES 9 



several concentric furrows. Genital markings unpaired and median, 

 presetal on viii, postsetal on xvii and xviii. 



Intestinal caeca simple. Testis sac of x horseshoe-shaped. One 

 pair of vertical testis sacs in xi. Seminal vesicles of xi included 

 within the posterior testis sacs. Spermathecal diverticulum with short, 

 muscular stalk and an elongately tubular seminal chamber, the latter 

 variously bent, twisted or looped. Genital marking glands with long, 

 coelomic stalks. 



Type. — U.S.N.M. no. 20098, from between Gin Keo Ho and 

 Dawei, Szechuan. 



Distinguished from P. Jiupciensls by the absence of septa 8/9-9/10 

 and from P. Idhri by characteristics of the testis sacs as well as by 

 the extra pair of spermathecae. 



PHERETIMA FORNICATA, n. sp. 



Length 78 to 90 mm, diameter 4 to 6 mm. Setae : vi/17-24, vii/19- 

 21, viii/18-23, xvii/13-14, xviii/9-14, xix/12-15, xx/56; a wide dorsal 

 gap in the setal circle of ii. First dorsal pore in 12/13. Spermathecal 

 pores minute and superficial, four pairs, in 5/6-8/9. Male pores 

 superficial, on circular to transversely oval, disk-shaped porophores. 

 No genital markings. 



Septum 8/9 present but membranous. Intestinal caeca simple. 

 Testis sacs of x and xi unpaired and horseshoe-shaped. Spermathecal 

 diverticulum with a long, slender stalk and a spheroidal or asymmetri- 

 cal seminal chamber. 



Type. — U.S.N.M. no. 20099, from Tatsienlu, Tibet. 



Distinguished from P. hongkongeusis by the gap in the setal circle 

 of ii, the exclusion of the seminal vesicles of xi from the posterior 

 testis sac, and the absence of genital markings. 



PHERETIMA GRAHAMI, n. sp. 



Length 235 to 285 mm, diameter 11 to 15 mm. Setae: vii/22-25, 

 viii/22-27, xvii/26, xviii/ 1 9, xix/19-25, xx/80-91. First dorsal pore 

 in 12/13-13/14. Spermathecal pores on tiny, conical protuberances 

 into large, club-shaped spermathecal chambers, the latter invaginated 

 posteriorly and deeply into the coelom and bound by connective tissue 

 to the ventral parietes ; apertures of spermathecal chambers large, 

 transversely slitlike, three pairs, in 6/7-8/9. Male pores on broadly 

 conical tubercles in large copulatory chambers with apertures approxi- 

 mating to transversely slitlike. External genital markings lacking ; 



