NO. 5 FORAMINIFERA FROM TRINIDAD—SAUNDERS 7 
Locality —All figured hypotypes (U.S.N.M. Nos. P5100 to P5105) 
are from sample Bo. 262, Ortoire River, east coast of Trinidad. 
Distribution—Trochammunita salsa (Cushman and Bronnimann) 
emend. Saunders occurs commonly in all inshore, brackish-water 
areas of Trinidad. 
Remarks.—The specific description has been emended to cover the 
presence of multiple apertures in some individuals. Presumably this 
feature was not seen by Cushman and Bronnimann in their material, 
but examination of a large number of specimens from all coasts of 
Trinidad has shown that the development of more than one aperture 
in the adult stage of the test is quite a common feature. A number 
of specimens, when dissected, show multiple apertures in up to four 
chambers of the last whorl before which a single areal aperture is 
seen. 
Cushman and Bronnimann placed this species in the genus Labro- 
spira Hoglund. Labrospira is considered to be a junior synonym of 
Cribrostomoides Cushman by Frizzell and Schwartz (1950). Loe- 
blich and Tappan (1953, p. 28) maintain that Labrospira is a junior 
synonym of Alveolophragmium Stschendrina whereas Cribrostomoides 
is a distinct genus. The present author’s examination of the species 
under discussion shows that it cannot be placed in the genus Alveo- 
lophragmium owing to the presence of multiple apertures. In addi- 
tion, he considers that it should not be placed in the genus Cribrosto- 
moides Cushman emend. Frizzell and Schwartz, the holotype of which 
is a deep-water form in which multiple apertures, if present, are pro- 
duced by the fusion of toothlike projections across the normal single 
areal aperture. The multiple apertures of Cribrostomoides bradyi 
Cushman are situated in a single line near the base of the terminal face 
of the chamber. 
Reexamination of Trochamminita irregularis Cushman and Bronni- 
mann has led to an emendation of the species (see p. 4) and there- 
fore of the genus (see p. 4). The new information shows that 
Trochamminita salsa (Cushman and Bronnimann) emend. Saunders 
and planispiral forms of Trochamminita irregularis Cushman and 
Bronnimann emend. Saunders only differ in chamber shape and 
coarseness of wall texture. These features are constant, even when 
the two species are found in the same sample, but they are only of 
specific value. Therefore, the inclusion of the two species under the 
same genus appears to be the only logical course. 
