OCR Text |
Show 632 MR. F. E. BEDDARD ON THE [May 22, by rather fewer. Duct of spermiducal gland bent. Diverticulum of spermathecae the length of pouch. Hab. South China, Japan. 49. Amyntas sarasinorum Mich. Amyntas sarasinorum, Michaelsen, Jahrb. Hamb. wiss. Anst. xvi. p. 71. 165 mm., 95 segments. Setae 45 on v., 56 on xxvi. Male pores rather close. Spermiducal gland limited to xviii. Diverticulum of spermathecae not long, with an accessory diverticulum. Hab. Celebes. This species clearly approaches Amyntas halmaherce. The male pores, rather close, are not quite so nearly approximated as in that species ; the caeca show the commencement of the digitation so pronounced in " digitataP This latter form moreover has the spermiducal gland confined to segment xviii., as is the case with A. sarasinorum. 50. Amyntas esafatae Beddard. Perichceta esafatce, Beddard, Willey's Zool. Besults, part ii. p. 187. 115 mm., 105 segments. About 8 pairs of papillae on segments xvii.-xix. Four setae between male pores, but orifices not closely approximated. Diverticulum of spermatheca longer than pouch. Hab. Esafate, N e w Hebrides. 51. Amyntas masatakae Beddard. Perichceta masatakce, Beddard, Zool. Jahrb., Syst. Abth. vi. p. 761. Perichceta campestris, Goto & Hatai, Ann. Zool. Japon. ii. p. 67. 125 mm., 90 segments, of stout build. 11-15 setae between male pores. Anterior setae larger. Three small papillae surrounding male pore; anteriorly a pair lying to inside of, and before, aud in front of each spermathecal aperture. To all these correspond stalked glands. Spermiducal glands absent, only duct represented, which is curved. Diverticulum of spermatheca long and straight, longer than pouch. Hab. Japan. I regard Perichceta campestris as synonymous with my species. It has two pairs of spermatheca? in the same segments, w hich appear how ever to have shorter diverticula. The presence of a spermiducal gland in campestris does not invalidate the comparison, since we have cases like A. heterochcetus, where this gland may be absent or present. The papillae too are slightly different in the two forms. Still campestris appears to be more like masatakce than divergens, where it was placed by Michaelsen. 52. Amyntas novaB britanniae Benham. Perichceta novas britanuicce, Benham, Journ. Linn. Soc, Zool. xxvi. p. 199. |