138 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Apstein's report (li)06, a) of the occurrence of Pegea confederate! 

 in the Sudpolar collections may best be shown in tabular form: 



1 Number and forms not stated. 



Apsteiu reports from the Tiefsee Expedition (li)06, b) the occur- 

 rence of Pegea as follows: 



i Number not stated. 



Ihle reports (1910), from the Siboga Expedition, that the aggre- 

 gated form of Pegea confederata was found at five stations, twice in 

 great numbers, and that one specimen of the solitary form, 43 mm. 

 long, was found at another station. 



Hitter says, in his Pelagic Tunicata, of the San Diego region: 

 The aggregate generation is not rare in the area, but not a single zooid of the solitary 

 generation has thus far been observed. The species has been taken on the California 

 coast from Monterey Bay southward, and in the months of Jauuary. February, March, 

 May, June, July, and August. 



