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Show 650 MR. F. E. BEDDARD ON THE [May 22, pair in viii., with very long diverticulum which is much folded. Intestinal caeca ? Spermiducal gland much lobed. Terminal sacs ? Although Perrier's definition is not adequate so far as our present knowledge is concerned, this species does not seem to be identical with any subsequently described form with one pair of spermathecae in segment viii. or vii., or ix. AMYNTAS ELONGATUS, Perrier ; Perichceta elongata, Perrier, ibid. p. 124. Length ? (stated to be 355 mm.; but this length is too great for the diameter of 4 mm.). Sperm-sacs in xi., xii. Spermiducal gland loosely lobate, with bent duct and no terminal sac. Spermathecae in vi. without (?) diverticula.-Peru. Here again it is impossible to state with even probability that the present species is identical with any subsequently described species. AMYNTAS TAITENSIS, Grube (in part) in ' Eeise der Novara,' Anneliden, 1868, p. 36. This species, from which one individual of the two described by Grube must be removed and placed in a second species already treated of as Amyntas novarce, has been termed " Perichceta grubei" by Eosa (Ann. k.-k. Hofm. Wien, vi. p. 395). It is 90 m m . long and has 120 segments. Four papilla? between male pores. Seta? 60 on viii. Spermathecae open on intersegmental furrows vii./viii., viii./ix. AMYNTAS PARVUS (Ude, Zeitschr. wiss. Zool. lvii. p. 64) is a small worm 25 m m . long, with 85 segments. Setae 40-44, 12 between male pores. Spermathecae in viii., ix. with very long and coiled diverticulum. Duct of spermiducal gland broad and short. I place this species in this place because the author of it savs nothing about seta? upon the clitellum and papillae. As he examined three specimens, it is possible that they were absent. In this case the species seems to be at least very near to A. ceruginosus or A. hesperidum. But I have not been able to make up m y mind to include a pygmy like the present, form with the giant " Perichceta musica," and the spermathecal diverticulum seems to be too long for A. hesperidum. AMYNTAS ACINCTUS Goto & Hatai (Annot. Zool. Jap. iii. p. 16), is a doubtful species so named-and not aptly-because of the undeveloped clitellum. Its characters are:- 130 mm., 113 segments. Seta? 50 to 60, 7 between male pores. Spermiducal glands xvii.-xix. Spermatheca? in vi.-viii., with diverticulum twice the length of pouch. Species which belong to the genus Amyntas, but which cannot be defined. I shall content myself with giving a bare list of these species, as our information concerning them is entirely limited to a few external characters which are not sufficient to place them with |