TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS' 



47 



perforate; apertures one or more at the base of the apertural face. 

 Jurassic to Recent. 



This genus is a highly developed one in the Indo-Pacific region, 

 where there are numerous species, some .of which at least are rather 

 limited in their distribution, for the most part being confined to shallow 

 water where they are often exceedingly abundant. Some of the 

 species are identical with, or closely related to, species already de- 

 scribed from other regions, but most of them seem to be distinctive of 

 the Indo-Pacific itself. In some of the groups of islands there seem to 

 be very definite varieties or forms which can be distinguished from 

 those of other groups, but it has not been thought best to give these 

 definite varietal names at present, as much more material and study 

 are needed to define more closely these isolated forms. 



ELPHIDIUM CRISPUM (Linnaeus) 



Plate 11, Figures 4a, b 



There are numerous forms similar to the one figured from off Fiji 

 which have many of the characters of Linnaeus's species. They 

 never seem, however, to develop the very large size and the complex 

 form found in the typical material from the Adriatic and developed 

 in the Late Tertiary of Italy. Nevertheless, the characters are similar, 

 and the fact that numerous species of the Mediterranean are widely 

 spread in the Indo-Pacific region makes it seem possible to use this 

 name for these specimens until more is known of their structure and 

 distribution. The specimens are as a rule not very abundant in our 

 material, and occur at the follo\ving shallow-water stations: Mokaujar 

 Anchorage, Fiji; 40 to 50 fathoms off Fiji; Makemo Lagoon, Paumotu 

 Islands; Rongelap Atoll, Marshall Islands; Port Lotten, Kersail, 

 CaroUne Islands; and in 21 fathoms, Guam Anchorage, Ladrone Is- 

 lands. Rare specimens occur at three Albatross stations noted in 

 Table 26. 



Table 26. — Elphidium crispum — material examined 



