Cirripeds from Ogasawara — UTINOMI 
99 
and third are bifid, and the fifth is rudimentary. 
Maxilla I has a distinct but narrow notch. 
The cirri have the following numbers of seg- 
ments in their rami: 
I II III IV V VI 
7 12 12 12 11 11 23 25 27 30 30 30 
On the whole the numbers of segments are 
much larger than those of Broch’s specimen, 
but the other characters agree with his descrip- 
tion. 
Although some differences, mentioned above, 
are found between the present specimens and 
Broch’s pseudauricoma, these seem to be so small 
and of such subordinate importance as to be 
insufficient for a specific separation. 
Measurements in mm.: Specimens 
A B C D 
Carinorostral diameter 6.7 6.1 5.9 5.4 
Height 4.0 4.0 4.8 3.2 
Locality: The same as given for B. hawaiensis. 
Ten specimens. 
REFERENCES 
Barnard, K. H. 1924. Contributions to the 
crustacean fauna of South Africa. No. 7, 
Cirripedia. So. African Mus., Ann. 20: 1— 
103. 
Broch, H. J. 1931. Indomalayan Cirripedia. 
Papers from Dr. Th. Mortensen’s Pacific 
Expedition 1914-16. LVI. Dansk. Naturhist. 
For. Kjfibenhavn, Vidensk. Meddel. 91: 1— 
146. 
Hiro, F. 1937. Studies on the cirripedian fauna 
of Japan. II. Cirripeds found in the vicinity 
of the Seto Marine Biological Laboratory. 
Kyoto Imp. Univ., Coll. Sci., Mem., Ser. B, 
12: 385-478. 
1939- Some barnacles from the Ogasa- 
wara Islands. Annot. Zool. Jap. 18: 49-57. 
Ikeda, H. 1939. A new genus and new species 
of the Cidaridae from the Bonin Islands 
(Cidaroidea) . Rec. Oceanogr. Wks. Jap. 10: 
160-164. 
PlLSBRY, H. A. 1916. The sessile barnacles (Cir- 
ripedia) contained in the collections of the 
U. S. National Museum; including a mono- 
graph of the American species. U. S. Natl. 
Mus., Bui. 93: 1-366. 
