260 K. MITSUKUEI : STUDIES ON 



(Sempek), that I liave no licsitation in assigning them to that 

 species, and that all the more as the species has been reported 

 from points nearer to Japan than the locality whence it was first 

 described. I have natnrally turned to P. japonica (Bell) to see if 



the specimens did not be- 

 15 MD long to it. Unfortimately 



/ Bell's description of that 



\ I5 : Ir, / 



"Vl O O n species is rather imperfect. 



'*r^ o o /^'7 Moreover, that species is 



w III 3 nil y^J 

 , ^^ ^ said to be devoid of cal- 



"-^ careous deposits — which 



II2O 0|||,2 i||.,o On i • 1 • X .1 



^ -^"n certamlv is not the case 



r\ III, ^-x -^^ 



\^ f^^ '-^ rA I with my specimens. Again, 



li O 1^^ Bell's specimen came from 



Tsugaru Strait, while my 

 specimens are all from 

 localities much farther 



MV 



Textfig. B2. south. Either there is a 



Fswdocunimxs africana : Di-Tgram showing the ammge- g^^Qj-^ j totallv different 

 ment and relative size of tentacles. Arrows indicate the 



5 ambtilacra. MD — Middorsal, MV — Midventral Hne ; I gppcieS of PsClldoCllCllVllS 

 — largest, II — middle-sized, III — sniixUest-sized tentacles. 



from the north, which is 

 to go by the name of P. japonica (Bell,), or else the latter species 

 is synonymous with the present species. Future investigations 

 alone can decide the matter. 



Locality :— Querimb.a (Semper '67—8) ; Mauritias (Ludwig '83, Haacke 

 '80) ; Amboiua (Ludwig '88) ; Zanzibar (Ludwig '99) ; Seychelles (Ludwig 

 '99); Baui (Lampeut '96) ; New Caledonia (Bedford '99); Rotiima (Bedfoijd 

 '99) ; Karkaraloug Group (Sluiter '01) ; Sarassa (Sluitek '01) ; Molo Strasse 

 (Sluiter '01) ; Mnaras-iiiff (Sluiteu '01) ; Sailus-Ketjil (SEurrER '01) ; 

 Lamakera, Riff (Sluiter '01) ; Djarapeali (Sluher '01) ; Banda (Sluiter 



