1900.] EABTH WORMS OF THE GENUS AMTNTAS. 629 



Papillae paired on vii.-ix., and three or four surrounding male pore. 

 Spermiducal gland sometimes wanting. Spermathecae either with- 

 out or with but minute diverticulum. 



Hah. Japan. 



This species, which Michaelsen merges with his A. diveryens, has, 

 I think, claim to distinction on account of the three pairs of sper- 

 mathecae in segments vii.-ix., with absent diverticula or with (in 

 the case of the variety flavescens) only minute diverticula to the pair 

 of spermathecae in segment viii. 



E. Spermathecae 2 pairs in viii., ix. 



43. Amyntas semifasciatus Mich. 



Amyntas semifasciatus, Michaelsen, Jahrb. Hamb. wiss. Anst. 

 xvi. p. 49. 



110 mm., 88 segments. Setae 45 on v., 62 on xxiv. Small papillae, 

 one or two pairs on xvii., xix. Both gizzard-septa present but thin. 

 Spermiducal glands in xvii., xviii., with bent duct. Diverticulum 

 of spermatheca very short. 



Hah. Celebes. 



Only a single specimen has been described. 



44. Amyntas aeruginosus Kin berg. 



Amyntas eeruyinosus, Kinberg, (Efv. K. Svensk. Ak. Fbrh. 1886, 

 p. 101. 



Amyntas eeruyinosus, Michaelsen, (Efv. K. Svensk. Ak.Eorh. 1899, 

 p. 434 ; id. Jahrb. Hamb. wiss. Anst. xvi. p. 4. 



Meyascolex eeruyinosus, Vaillant, Anneles, 1889, p. 82. 



Perichceta musica, Michaelsen, Oligochaeta in Semon's Forsch. 

 Eeise, v. Lief. i. p. 99. 



Meyascolex musicus, Horst, Notes Leyd. Mus. v. p. 193. 



Perichceta musica, Horst, Notes Leyd. Mus. xii. p. 236 ; id. 

 ibid. xv. p. 338 ; id. Zool. Ergebn. Max Weber, Bd. ii. p. 59. 



Perichwta musica, Vordermann, Natuurk. Tijdschr. Ned. Indie, 

 xli. p. 1, & xliv. p. 1. 



Perichceta fasciata, Rosa, Ann. Mus. Civ. Genova, (2) xii. p. 543, 

 & xvi. p. 609. 



Perichazta lovga, Horst, Notes Leyd. Mus. xv. p. 325. 



Perichceta musica, Ude, Zeitsehr. wiss. Zool. lxvii. p. 63. 



Perichieta musica, Michaelsen, Arch. f. Naturg. 1892, p. 238. 



Perichceta musica, Eosa, Atti K. Accad. Torino, xxix. p. 8. 



Perichceta lonya, Michaelsen, Arch. f. Naturg. 1892, p. 239. 



Perichceta ivilleyi, Benham, Ann. Nat. Hist. (6) xvi. p. 41. 



180-570 mm., 100-166 segments. Setas from 50-100. 17 seta? 

 between male pores. Spermiducal glands in xviii. only ; duct 

 short and straight. Diverticulum of spermatheca very long and 

 much coiled. 



Nab. Java, Sumatra, Guam. 



This, the largest of all species of Amyntas, and one of the largest 



