1900.] EARTHWOKMS OF THE GENUS AMINTAS. 629 



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

 Sperniiducal gland sometimes wanting. Spermathecae either with- 

 out or with but minute diverticulum. 



Hab. Japan. 



This species, which Michaelsen merges with his A. divergens, 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. Seta? 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. 



Hab. Celebes. 



Only a single specimen has been described. 



44. Amyntas aeruginosus Kinberg. 



Amyntas ceruginosus, Kinberg, CEfv. K. Svensk. Ak. Forh. 1886, 

 p. 101. 



Amyntas ceruginosus, Michaelsen, CEfv. K. Svensk. Ak.Forh. 1899, 

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



Megascolex ceruginosus, Vaillant, Anneles, 1889, p. 82. 



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

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



Megascolex 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. 



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

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



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

 <fc xvi. p. 609. 



Perichceta loncja, Horst, Notes Leyd. Mus. xv. p. 325. 



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



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



Perichceta musica, Rosa, Atti R. Accad. Torino, xxix. p. 8. 



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



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



180-570 mm., 100-166 segments. Setae from 50-100. 17 setae 

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

 short and straight. Diverticulum of spermatheca very long and 

 much coiled. 



Hab. Java, Sumatra, Guam. 



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



