260 K. MITSUKUEI : STUDIES ON 



(Sempee), that I have no hesitation in assigning them to that 



sj)ecies, and that all the more as the species has been reported 



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



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



the specimens did not be- 



y[]) long to it. Unfortunately 



; / Bell's description of that 



n.3 rS !,^ ''4 / species is rather imperfect. 



'4/—N o o /^'7 Moreover, that species is 



vJ 111.5 ill.} ^^ 

 , „ ^ said to be devoid of cal- 



^^ careous deposits — which 



iioO oiiio III-, o On ^ • 1 • ^ .1 



^^ ' '-^ilr, cortamlv is not the case 



^r^^ P) lilt ^ ^-^, 



l2^-^^-^ O \J ■' with my specimens. Again, 



Il O j^^ Bell's sjDCcimen came from 



I Tsugaru Strait, while my 



I specimens are all from 



^^ localities much farther 



Textfig. 52. south. Either there is a 



Fseudocucumis africana : Diagram showing the aimnge- ^^^^^^^^1 totally different 



ment and relative size of tentacles. Arrows indicate the "^ -^ 



5 ambiüacra. MD— Middorsal, MV— Midventral line ; I gpecieS of PseudoCUCUmîS 

 —largest, II— middle-sized, III— smallest-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 :— Querimba (Semper '67—8) ; Mauritius (Ludwig '83, Haacke 

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

 '99); Baui (Lampert '96) ; New Caledonia (Bedford '99); Iloturaa (Bedford 

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

 (Sluiter '01); Muaras-Kiff (Sluiter '01); Sailus-Ketjil (SLuriEr. '01); 

 Laraakera, Riff (Sluiter '01) ; Djampeah (Sluiter '01) ; Banda (Sluiter 



