2§2 ■ ASAJIRO OKA; ON SOME NEW 



Orohclella Whitmani/' (Ijima MS) nov. sp. 

 Diarpiostic Ch ar acters. 



Bodij nearly cylindriciil, somewhat flattened toward the hind end, 

 tapering slightly toward the head. 



Rings 8<S, distinctly marked. Behind the last complete ring, 

 there is still one more which is distinctly visible only on the dorsal 

 side. 



Somite, when complete, consisting of 4 rings. 



Mouth occupying a space corresponding to the 4 foremost rings ; 

 5th and 6th rings forming on the ventral side the posterior lip of 

 the mouth. 



Eyes, , in one pair, at the anterior margin of the 2nd ring; on 

 the 4tli ring a pair of small pigment dots, representing rudimentary 

 eyes. 



Genital orijiccs. The male orifice is situated on the ventral surface 

 of the 27th ring, the female orifice on the o2nd ; 4 rings between the 

 rinji's bearino' them. 



GliteUwii, embraces 12 rings, beginning with the 22nd and ending 

 with the o.'hxi. 



Jcetahulmn, ovate, small, the diameter measuring nearly half the 

 breadth of tlie animal. 



Anns, on the dorsal snrfice of tlie acetabulum, about one ring's 

 breadth behind the posterior margin of the last j-ing. 



Nephndidl pores liaixlly visible externally, opening in the median 

 portion of the body on every fourth ring, on the ventral surface more 

 or less distant from the lateral mar^'ins. 



* This, as well as tlie following specific nauies, is constructed in strict accordance with the 

 ' Règles de la Nomenclature des êtres organisées ' published lately by the Société Zoologique de 

 France. 



