624 MR. F. E. BEDDARD ON THE [May 22, 



position of the sperraathecal orifices is unusual, but is paralleled in 

 A. trinitatis. 



24. Amyntas vordermanni Horst. 



Perichceta vordermanni, Horst, Notes Leyd. Mus. xii. p. 231. 



315 mm., 175 segments. Setae 80-90 behind clitellum. Sucker- 

 like papillae paired on xvii., xviii. ; besides these, prominent 

 papillae on same segments in line of setae, in front of that of xvii. 

 and behind that of xviii. on each side. Also papillae on vii., viii. 

 Spermiducal glands xvii.-xxii. Large gland corresponding to 

 papillae in this region of body. Sperinathecae with diverticulum 

 half their length. 



Hab. Billiton. 



25. Amyntas padasensis Beddard & Fedarb. 



Perichceta padasensis, Beddard & Fedarb, Ann. Xat. Hist. (6) 

 xvi.- p. 73. 



• Non Amyntas padasensis, Michaelsen, Jahrb. Hamb. wiss. Anst. 

 xvi. p. 74. 



280 mm., 96 segments. Setae slightly larger anteriorly ; 

 occasionally more closely crowded venlrally, especially on xvii., 

 xviii. Male pores divided by 10 setae. Spermiducal glands with 

 thick straight duct. Diverticula of spermathecae with accessory 

 sperm-chambers. Sperm-sacs in x.-xiii., those of xi.. xii. with a 

 small apical lobe, as in many other species. 



Hab. Borneo. 



In this species the difference in size between individuals is great. 

 Two examples from Padas Valley were respectively 280 and 

 187 mm. Those from Merabah about 120 mm. or so. The 

 spermathecae have a remarkably strong duct, nearly as wide, and 

 quite as long, as the pouch. The diverticula are not always pro- 

 vided with additional swellings ; but they are often so. The 

 arrangement is like that of the Japanese worm I called Perichceta 

 nipponica, Amyntas darnleiensis, and also A. martensi, where the 

 same occurrence and non-occurrence of the supplementary diver- 

 ticula is met with. I have seen five specimens of this species, the 

 two large ones from Padas and the smaller ones from [Merabah. 



26. Amyntas trinitatis Beddard. 



Perichceta trinitatis, Beddard, P. Z. S. 1896, p. 206. 



150 mm., 100 segments. Setae on vi.-ix. larger, 45 on xvii. ; 19 

 setae between male pores. Spermiducal glands in xvii.-xxi., with 

 horseshoe-shaped duct. Spermathecae open near to dorsal middle 

 line, with diverticulum longer than pouch. 



Hab. Trinidad. 



This species appears to be distinct. It differs from A. hetero- 

 chcetus mainly in dorsal position of spermathecal pores, in larger 

 number of setae between male pores, and in larger diverticulum of 

 spermathecae. It has egg-sacs in xiii.„ xiv. 



