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Show 622 MR. F. E.BEDDARD ON THE [May 22, B. Spermathecae 5 pairs in v.-ix. 19. Amyntas megascolidioides Goto & Hatai. Perichceta megascolidioides, Goto & Hatai, Ann. Zool. Japon. iii. p. 21. 240 mm., 118 segments. Setae 48, 13 between male pores. Male pores on xix. Papillae paired on xvii., xviii., xx. Spermiducal glands large. Diverticulum of spermathecae long. Hab. Japan. This species is absolutely unique in the genus, by reason of the fact that the male pores open on to the xixth segment. It may be, of course, that in those species, such as A. hilgendorfi, in which the position has not been ascertained, owing to the entire absence of a terminal apparatus, it may also open on to that segment. C. Spermathecae 4 pairs in vi.-ix. 20. Amyntas heterochaetus Mich. Perichceta hderochceta, Michaelsen, Abh. naturwiss. Ver. Hamb. xi. Heft ii. No. 2, p. 6. Perichceta indica, auctorum \ Non Perichceta indica, Horst, Vermes in 'Midden-Sumatra,' p. 4. Perichceta perkinsi, Beddard, P. Z. S. 1896, p. 198. Perichceta modigliani, Rosa, Ann. Mus. Civ. Genova, (2) vii. p. 134. Perichceta nipponica, Beddard, Zool. Jahrb. vi. p. 760. Perichceta mirabilis. Bourne, P. Z. S. 1886, p. 668. Amyntas heterochceta, Beddard in 'Fauna Hawaiiensis,' 1900 p. 416. 60-190 mm., 110 &c. segments. Anterior setae larger, 31 on v., 46 on xvi.; they are ornamented. Papillae paired on vii.-ix., also often two or three quite close to male pore. Spermiducal gland often absent altogether. Hab. Everywhere, including Europe. I have already pointed out2 that Perichceta indica figured by Horst cannot be the same species as that to which the°name of P. indica has been also given by myself and others, since in the former there is a large end-sac, through which the duct of the spermiducal gland opens on to the exterior; and I apree with Michaelsen in this identification. P. perkinsi is at most a variety of the type examples. Pheretima califomica (see p. 627) of Kinbero-is partly identical. Perichceta modigliani of Rosa must also be included, since it appears to have the same papillae near to the male pores. P. nipponica has numerous or few secondary diverticula to the spermathecal appendix, apparently resembling P. darnleiensis in this. As I only have one specimen of the former, I (in the meantime at least) follow Michaelsen in including it among the synonyms of A. heterochcetus. It is not always possible to know what is meant by " Perichceta indica Earthworms from Hawaii, in ' Fauna Hawaiiensis.' Cambridge. |
