80 



ART. II. A. IZUKA : 



It quite differs from AphrodUa in the absence of the iridescent 

 hairs composing the felt, and in the characters of the dorsal 

 spines. 



Habitat :— Near Öshima in Prov. Izu, 235 fathoms ; Yenonra 

 in Prov. Surnga, 470 fathoms (Mr. K. Aoki) ; " Sonth of Yedo," 

 565 fathoms (" Challenger '"). 



1885. 

 1903. 



Laefinatonice japonica Mcintosh. 



PI. I, tig. 4 ; PI. IX, figs. 14—15. 



Laetmatouice japouica, Mclntosli. "Challenger" Annel. p. 50. 



Moore. Proc. Acad. Nat. Sc. Philad. Vol. 

 LV, p. 420. 



The single specimen dredged at St. 232 (South of Japan) by 

 " Challenger," and described by McIntosh, measured about 30 mm. 

 in length and 18 mm in breadth, with 36 segments ; and the 

 followings are the number of body segments and measurements 

 occuring respectively in the three specimens collected by us from 

 three different localities : 



Localit}'. 



Length. 



Bredth. 



No. of Segments. 



Sagami Ba}-. 



Misaki. 



Uzen. 



16 mm. 

 28 mm. 

 13 mm. 



6 mm. 

 11 mm. 



5 mm. 



32 

 34 

 32 



Dorsum wholly covered with thin felt much impregnated 

 with sand, which also invests the hairs on the sides ; thus the 

 15 pairs of pale smooth elytra are hidden. 



Prostomiura broad and rounded in front, narrow behind, and 



