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Show 618 MR. F. E. BEDDARD ON THE [May 22, Amyntas capensis, Michaelsen, Jahrb. Hamb. wiss. Anst. xvi. p. 92. Perichceta capensis, Ude, Zeitschr. wiss. Zool. lvii. p. 61. ? P. operculata, Rosa, Ann. k.-k. Hofmus. Wien, vi. p. 398. P. tenkatei, Horst, Notes Leyd. Mus. xv. p. 321. P. tjibodce, id. ibid. p. 326. P. infiata, id. ibid. p. 327. P.falcata, id. ibid. p. 316. P. variabilis, id. ibid. p. 319. P. sexta, Benbam, Ann. Nat. Hist. (6) xvi. p. 44. Megascolex sumatranus, Horst, Notes Leyd. Mus. v. p. 189. Perichceta sumatrana, Horst, Vermes in 4 Midden-Sumatra,' p. 5 ; and Zool. Ergebn. ii. p. 69. P. sumatrana, Beddard, P. Z. S. 1892, p. 155. P. capensis, Rosa, Ann. Mus. Civ. Genov. (2) xix. p. 65. 130 ram., 110 segments. Setae 40 on viii., 60 on xxv.; 12 setae between male pores. Dorsal pores from vi. Spermiducal glands xv.-xxiv., much broken up. Diverticulum of spermathecae very long and often coiled like a sheep's horns. Hab. Java, Engano, Soemba, Sumatra, Timor Cupang, Hong- Kong, Cape of Good Hope, Barbados. The above list of synonyms is largely in accordance with Dr. Michaelsen's views. I do not, however, follow him in including Benham's Perichceta willeyi, since that species has no terminal sac to the duct of the spermiducal gland. I a m also of opinion that Bosa's species P. fasciata is not rightly included, as the describer says nothing about a sac. In any case, it cannot be doubted that the worms here included in one species are at least exceedingly near to each other in structure. The peculiar ram's-horn appearance of the long diverticulum of the spermathecae is not apparent in all the individuals, to judge from the published illustrations. But that is very possibly a matter of contraction. It should be observed that it is not clear from Bosa's description that his operculata has a terminal muscular sac. Nor does Ude mention this structure in identifying operculata with capensis. Eosa, indeed, says the duct of the spermiducal gland 4' fiihrt direct nach aussen." But the sac looks as if it had been extruded in his specimen. 12. Amyntas caducichsetus Benham. Perichceta caducichceta, Benham, Ann. Nat. Hist. (6) xvi. p. 47. 133 mm., 105 segments. Setae 20 on iv., 38 on xxiii., totally absent on x. Spermiducal gland small in xvii.-xix. Diverticulum of spermathecae long. Hab. Java. Were it not for the fact that the setae are absent in this species from segment x., it would be impossible to avoid placing it with that which has just been described. |
