22 



8. GOTO AND S. HATAI. 



although there are no setae. Spermathecal pores 5 pairs, 



ay in IV/V — VIII/IX, externally invisible. Oviduct pore 



irregularly depressed. Male pores in XIX, separated by 

 13 setae, and about 6.5 mm. apart. Onepair of genital 

 papillae about 0.5 mm. in diameter in segments XVII, 



Fig. 16. 



XVIII, XX, close to the posterior borders of the 

 segments (fig. 16). First dorsal pore in XII/XIII. 



Gizzard in VIII, IX ; intestine beginning in XV, with one pair "of "cosca in 

 XXVII, reaching as far anteriorly as XXIII. Thickened septa V/VI— VII/VIII ; 

 and X/XI— XII/XIII ; septa VIII/IX, IX/X wanting Spermathecae five pairs, in 

 V — IX ; main sac elongated ovate, with a pointed apex ; diverticulum tubular and 

 convoluted in its distal half, as long as the main portion. Sperm reservoir iu XI, 

 XII, small. Ovary large ; ovisac absent. Prostate gland large, in XVIII — XXI, 

 divided by deep incisions into three parts, with lobed margin. The genital organs 

 are conspicuously small as compared with the large dimension of the body. 



The single specimen representing this species belongs to the Science College, and 

 and we have been enabled to examine it through the kindness of Prof. Mitsukuri. 



Loc. — Tokyo (collected by Mr. Wada of the Central Meteorological Observatory, 

 within its compound). 



After the foregoing part of this paper had been written we received from Dr. 

 Horst of Leyden a copy of his paper f entitled, " On Perichœta Sieboldi Horst," in 

 which the author makes some remarks on the species which we provisionally identified 

 with the species first described by him from Japan. We are very glad that our Dutch 

 friend has taken the trouble of reexamining his type specimen, and are much indebt- 

 ed for his courtesy in sending us his paper. We must also acknowledge his kindness 

 in pointing out some misprints that have crept into our table ; and we beg those who 

 have our first paper to correct them accordingly, viz. column " Spermathecae," line 1, 



read VI, VU, Vili, IX instead of V, VI, VII ; same column, line 2, read VIII, 

 IX instead of VI, VII, VIII ; column " Prostate," line 5, read instead of XVIII. 

 There is one point of misunderstanding in Dr. Horst's paper which we may dis- 



Postscript. 



pose of at the outset. At its end he says that we have not met with any of the nine 

 species described by previous writers from this country. We beg to remark that this 



f Notes from the Leyden Museum, Vol, XX, pp 240—242. 



