642 MB. F. E. BEBDAEB ON THE [May 22, 



Perichceta posthuma, Horst, Notes Leyd. Mus. v. p. 106 ; xv. 

 p. 318. 



Megascolecc affinis, Beddard, Ann. Nat. Hist. (5) xii. p. 214. 



Perichceta posikuma, Beddard, ibid. (5) xvii. p. 93. 



Perichceta affinis, Beddard, P. Z. S. 1887, p. 389. 



Perichceta posthuma, Horst, Zool. Ergebn. Max Weber, ii. p. 61. 



Amyntas posthumus, Michaelsen, Jahrb. Harnb. wiss. Anst. xvi. 

 p. 74.' 



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

 p. 201. 



Perichceta posthuma, Rosa, Ann. Nat. Hist. (7) ii. p. 289. 



Megascolex posthumus, Vaillant, Annele's, 1889, p. 72. 



95 mm., 70 segments ; stoutish worm. Seta? 140 on viii., 90 on 

 xvii. Setae on all segments of clitellum. Papilla? on xvii., xix. 

 corresponding in position with male pores. Septum viii./ix. present. 

 Spermiducal gland in three segments, with curved duct. Sper- 

 matheca? with diverticulum less than pouch. 



Hob. Java, Celebes, Christmas Is., Philippines, Cochin China, 

 Bahamas, Europe. 



The caeca appear to be sometimes absent. 



82. Amyntas neoguinensis Mich. 



Perichceta neoguinensis, Michaelsen, Arch. f. Naturg. 1892, p. 229. 



Perichceta neoguinensis, Rosa, Ann. Mus. Civ. Genova, (2) xix. 

 p. 60. 



140-220 mm., 94-130 segments. Setae 85 on v., 100 on xxv. 

 Setae on all clitellar segments, 14, 16, 20 in number. 20 seta? 

 between male pores. Papillae paired on xix.-xxv., or xxvi., corres- 

 ponding in position to male pores. Septum viii./ix. rudimentary. 

 Sperm-sacs in xii. only, with dorsal narrow constricted sac. Sper- 

 miducal glands confined to segment xviii., with short straight 

 duct. Spermathecal pores approximated, with very short sessile 

 diverticulum. 



Hob. New Guinea. 



To a slight variation Rosa gives the name of var. spectabilis. 



83. Amyntas pacificus Beddard. 



Perichceta pacifica, Beddard, Willey's Zool. Results, pt. ii. p. 190. 



38-56 mm., 90 segments. Seta? 37 on viii., 46 on xvii. 10 

 seta? between male pores. Papillae large and median, upon xvii.- 

 xxii., and xii., xiii. Seta? upon xvi. and often other clitellar 

 segments. Both septa. Last hearts in xii. Sperm-sacs in xii. ; 

 testes ifcc, only one pair. Spermiducal gland xvii.-xix., with 

 short straight duct. 



Hab. New Britain. 



84. Amyntas celebensis Mich. 



A. celebensis, Michaelsen, Jahrb. Hamb. wiss. Anst. xvi. p. 32. 

 60 mm., 90 segments. Seta? 49 on vi., 44 on xxvi., with slight 



