860 
THE VOYAGE OF H.M.S. CHALLENGER. 
In the Southern Pacific Ocean the following Compound Ascidian was obtained : — 
Off Tongatahu. 
Leptoclinum tonga. 
In the Seas of the Malay Archipelago the following Compound Ascidians were 
obtained : — 
At Station 186. 
Psammaplidium pyriforme. 
At Station 187. 
Colella pulchra. 
In Torres Strait. 
Polyclinum depressum. 
Psammaplidium ovatum. 
Off the Arrou Islands. 
Diplosomoides molle. 
At Station 208. 
Botrylloides tyreum. 
Off Zebu, Philippine Islands. 
Aplidium fumigatum. 
At Station 209. 
Leptoclinum albidum, var. grande. 
Off Samboangan, Philippine Islands. 
Cystodytes philippinensis. 
Leptoclinum moseleyi. 
Synstyela incrustans. 
At Station 212. 
Botrylloides perspicuum. 
„ ,, var. rubicundum. 
Colella thomsoni. 
Distaplia vallii. 
Off Japan the following Compound Ascidian was obtained ; — 
At Station 233a. 
Leptoclinum japonicum. 
