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Show 626 MR. F. E. BEDDARD ON THE [May 22, large, extending backwards to spermiducal gland. Spermiducal glands in three segments. Spermathecae very large, posterior pair reaching the anterior sperm-sac, with slender diverticulum nearly as long. Hab. Mt. Carin (Burma). 31. Amyntas aelianus Bosa. Perichceta celiana, Bosa, Ann. Mus. Civ. Genova, (2) xii. p. 545. 100 mm., 120 segments. Setae 74 on xiii. Male pores closely approximated, only 2 m m . apart. Spermiducal glands with short straight duct. Spermathecae opening as close together as male pores, with very long diverticulum wound into a mass larger than pouch. Hab. Engano. 32. Amyntas minahassae Mich. Perichceta minahassce, Michaelsen, Abh. Senck. nat. Ges. xxiii. p. 235. Amgntas minahassce, id. Jahrb. H a m b . wiss. Anst. xvi. p. 51. 48-105 mm., 92-113 segments ; stoutly built worm. Setae with dorsal gaps closer ventrally, 60 on x., 74 on xxvi. Deep suckers in front and behind each male pore on xvii./xviii., xviii./xix.; also small papillae on xviii. and xix., and less constantly on xvii. Sperm-sacs in x.-xii. Duct of spermiducal gland short and straight. Diverticulum of spermathecae longer than, or as long as, pouch. Hab. Celebes. The fact that ripe individuals of this species sometimes only reach a length of 48 m m . shows how careful it is necessary to be in founding specific differences upon size. 33. Amyntas castaneus Mich. Amgntas castaneus, Michaelsen, Jahrb. H a m b . wiss. Anst. xvi. p. 56. 50 mm., 95 segments. Setae with slight dorsal gaps, a little closer ventrally, 40 on vi. and xxvi. In front of and behind male pores a furrow. Papillae paired on xvii.-xx. near middle line, and a fifth pair on xvii. still more ventral. Spermiducal gland in four segments, with thick straight duct. Diverticulum of spermatheca a little shorter than pouch. Hub. Celebes. 34. Amyntas kalaenensis Mich. Amyntas kalaenensis, Michaelsen, Jahrb. H a m b . wiss. Anst xvi p. 68. 50 mm., 93 segments. Setae with slight dorsal gaps, 44 on xii., 49 on xxvi. A slit-like depression in front of and behind each male pore. Spermiducal gland small, with short straight duct. Diverticulum longer than spermatheca. Hab. Celebes. As this species is distinguished from the last by Michaelsen, who |