A careful comparison of the descriptions of Duncan’s so- 
called species will not reveal any important characters by which 
they can he separated. A study of about 70 specimens, including 
the types, belonging to the Unlversoty of Upsala, has shown that 
it is simply impossible to separate the specimens as Duncan did. 
It does not seem necessary to redescribe the general 
appearance, &c*, of the specimens, as Duncan’s descriptions are 
sufficient. The type of T. grand is has a much corroded base, 
and its caliee is longer than is usual in the other specimens. 
The corallum wall is synapticulate and perf orate ; the septa 
are imperforate; and there is no columella. 
Locality : Island of St. Bartholomew, west Indies, P. T. 
Cleve , Collector, 
Ge o 1 og i. c h o r i z on : Oligocene, ’’Limestone of St. Bartholo- 
mew . ” 
Types : 
University of Ups ala 
