626 ME. F. E. BEDDARD ON THE [May 22, 



large, extending backwards to spermiducal gland. Spermiducal 

 glands in three segments. Spermathecae very large, posterior pair 

 reaching the anterior sperm-sac, with slender diverticulum nearly 

 as long. 



Hab. Mt. Carin (Burma). 



31. Arnyntas aelianus Eosa. 



Perichceta celiana, Eosa, Ann. Mus. Civ. Genova, (2) xii. p. 545. 



100 mm., 120 segments. Setae 74 on xiii. Male pores closely 

 approximated, only 2 mm. apart. Spermiducal glands with short 

 straight duct. Spermathecae opening as close together as male 

 pores, with very long diverticulum wound into a mass larger than 

 pouch. 



Hab. Engano. 



32. Arnyntas minahassae Mich. 



Perichceta minahassa, Michaelsen, Abh. Senck. nat. Ges. xxiii. 

 p. 235. 



Arnyntas minahassce, id. Jahrb. Hamb. wiss. Anst. xvi. p. 51. 



48-105 mm., 92-113 segments ; stoutly built worm. Setae with 

 dorsal gaps closer veutrally, 60 on x., 74 on xxvi. Deep suckers in 

 front and behind each male pore onxvii./xviii., xviii./xix.; also small 

 papillae on xviii. and xix., and less constantly on xvii. Sperm-sacs 

 in x.-xii. Duct of spermiducal gland short and straight. Diver- 

 ticulum of spermathecae longer than, or as long as, pouch. 



Eab. Celebes. 



The fact that ripe individuals of this species sometimes only 

 reach a length of 48 mm. shows how careful it is necessary to be 

 in founding specific differences upon size. 



33. Arnyntas castaneus Mich. 



Arnyntas castaneus, Michaelsen, Jahrb. Hamb. wiss. Anst. xvi. 

 p. 56. 



50 mm., 95 segments. Setae with slight dorsal gaps, a little 

 closer ventrally, 40 on vi. and xxvi. In front of and behind male 

 pores a furrow. Papillae paired on xvii.-xx. near middle line, and 

 a fifth pair on xvii. still more ventral. Spermiducal gland in four 

 segments, with thick straight duct. Diverticulum of spermatheca 

 a little shorter than pouch. 



Hab. Celebes. 



34. Arnyntas kalaenensis Mich. 



Arnyntas kalaenensis, Michaelsen, Jahrb. Hamb. wiss. Anst. xvi. 

 p. 68/ 



50 mm., 93 segments. Setae with slight dorsal gaps, 44 on xii., 

 49 on xxvi. A slit-like depression in front of and behind each 

 male pore. Spermiducal gland small, with short straight duct. 

 Diverticulum longer than spermatheca. 



Hab. Celebes. 



As this species is distinguished from the last by Michaelsen, who 



