1900.1 EARTHWORMS OP THE GENTTS AMTTTTAS. 645 



xviii., between male pores. Spermiducal gland xvi.-xxi., with 

 short horseshoe-shaped duct. Spermatheeae long pouches, with 

 coiled duct about half their length. 

 Hab. Sumatra. 



92. Amyntas hawayanus Bosa. 



Perichceta liawayana, Bosa, Ann. k.-k. Hofmus. "Wien, vi. p. 396. 



Perichceta hawayana, Michaelsen, Zool. Jahrb., Syst. Abth. xii. 

 p. 224. 



Amyntas hawayanus, Beddard, in ' Fauna Hawaiiensis,' 1900, 

 p. 420. 



Perichceta pallida, Michaelsen, Arch, f . Naturg. 1892, p. 227. 



Perichceta mandhorensis, id. ibid. p. 241, & Jahrb. Hamb. wiss. 

 Anst. xvi. p. 86. 



Perichata bermudensis, Beddard, P. Z. S. 1892, p. 160. 



Perichceta morrisi, id. ibid. p. 166. 



Perichasta morrisi, Bosa, Ann. Mus. Civ. Genova, (2) xvi. p. 516. 



Perichceta barbadensis, Beddard, P. Z. S. 1892, p. 167. 



Perichazta mauritiana, id. ibid. p. 170. 



Perichceta mauritiana, Michaelsen, Abh. Senck. nat. Ges. xxi. 

 p. 235. 



Perichceta amazonica, Bosa, Atti B. Accad. Torino, p. 14. 



Perichceta sancti jacobi, Beddard, P. Z. S. 1895, p. 239, and Hamb. 

 Magall. Beise, p. 61. 



Perichceta carnosa, Goto & Hatai, Ann. Zool. Jap. hi. p. 16. 



Perichceta insulce, Beddard, P. Z. S. 1896, p. 204. 



Perichceta cupulifera, Pedarb, P. Z. S. 1898, p. 445. 



60-140 mm. Setae larger on anterior segments, up to 60 or "so 

 in number per segment. Papillae in neighbourhood of male pores, 

 and also paired on some of segments which contain spermatheeae. 

 Sperm-sacs often with median process. Spermiducal gland in 

 several segments, with not long, curved or straight duct. Sper- 

 matheeae (occasionally two pairs only) with diverticulum of about 

 same length. 



Hab. Borneo, China, Mauritius, Hawaii, Bermudas, Barbados, 

 South America, Teneriffe. 



In my account of the earthworms of Hawaii, published in the 

 ' Fauna Hawaiiensis,' I have stated in full my reasons for uniting 

 the five reputed species enumerated in the above synonymy. 

 I condense from that a sufficient abstract for my present purpose. 

 A. haiuayanus does not, as I have suggested, differ from A. ber- 

 mudensis in the absence of setae upon the clitelluin ; but this 

 occasionally occurs in haiuayanus. Both of these forms may have 

 anterior papillae on the viith segment near to the spermathecal 

 pores. They are by no means always present in either. The two 

 forms have sometimes simple caeca without the series of rounded 

 processes inferiorly, which have been mentioned as a characteristic. 



The form haiuayanus must be also united with barbadensis ; the 



