OCR Text |
Show 642 MR. F. E. BEDDARD ON THE [May 22t Perichceta posthuma, Horst, Notes Leyd. Mus. v. p. 106; xv. p. 318. Megascolex affinis, Beddard, Ann. Nat. Hist. (5) xii. p. 214. Perichceta posthuma, Beddard, ibid. (5) xvii. p. 93. Perichceta affinis, Beddard, P. Z. S. 1887, p. 389. Perichceta posthuma, Horst, Zool. Ergebn. M a x Weber, ii. p. 61. Amyntas posthumus, Michaelsen, Jahrb. Hamb. wiss. Anst. xvi. p. 74. Perichceta posthuma, Michaelsen, Abh. Senck. nat. Ges. xxiii. p. 201. Perichceta posthuma, Eosa, Ann. Nat. Hist. (7) ii. p. 289. Megascolex posthumus, Vaillant, Anneles, 1889, p. 72. 95 mm., 70 segments; stoutish worm. Seta? 140 on viii., 90 on xvii. Setae on all segments of clitellum. Papillae on xvii., xix. corresponding in position with male pores. Septum viii./ix. present. Spermiducal gland in three segments, with curved duct. Spermatheca? with diverticulum less than pouch. Hab. 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. Seta? 85 on v., 100 on xxv. Setae on all clitellar segments, 14, 16, 20 in number. 20 setae between male pores. Papilla? paired on xix.-xxv., or xxvi., corresponding in position to male pores. Septum viii./ix. rudimentary. Sperm-sacs in xii. only, with dorsal narrow constricted sac. Spermiducal glands confined to segment xviii., with short straight duct. Spermathecal pores approximated, with very short sessile diverticulum. Hab. New Guinea. To a slight variation Rosa gives the name of var. spectabilis. 83. Amyntas pacificus Beddard. Perichcetapacifica, Beddard, Willey's Zool. Besults, 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. Setae upon xvi. and often other clitellar segments. Both septa. Last hearts in xii. Sperm-sacs in xii.; testes &c, only one pair. Spermiducal gland xvii.-xix., with short straight duct. Hab. N e w 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 |