ROTALIIDAE — TRUNCATULINA. 47 



This statement is somewhat contradictory, for if the specimens 

 were typical they should hardly resemble Egger's rather than 

 d'Orbigny's forms, and it is to be suspected that another reddish 

 species may be developed in the Indian Ocean. Possibly Heron- 

 Allen and Earland's material may be this species, as some of the 

 West Indian forms range as far west as that. Egger's material, 

 however, does not seem to be this. I have already recorded it 

 from off the Tortugas in 1918 and from the north coast of Jamaica. 

 In Publication 213, Carnegie Institution of Washington (1919), 

 I did not record this species in the material from the Bahamas or 

 the eastern coast of Florida. It seems to be most common in very 

 shallow water, where it often occurs in great immbers. Specimens 

 were found at almost all of the Tortugas stations. 



Truncatulina candeiana (d'Orbigny). 



(Plate 6, Figures 7 to 9.) 



Roaalina candeiana d'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, " Foraminiferes," 



p. 97, pi. 4, figs. 2 to 4. 

 Truncatulina candeiana Cushman, Proc. U. S. Nat. Mus., vol. 59, 1921, p. 57, pi. 13, figs. 4, 5. 



Test trochoid, composed of about 2.5 coils, the last-formed coil composed 

 of about 6 chambers, rapidly increasing in size, inflated; periphery rounded, 

 lobulated; sutures depressed, except in the early part of the test, ventrally 

 somewhat umbilicate, concave; wall coarsely perforate, the opening of each 

 perforation small and surrounded by a ring of whitish thickened shell material, 

 the remainder of the wall translucent; aperture a narrow, arched slit at the 

 base of the last-formed chamber with a slight lip; color of the early portion 

 dark reddish-brown, becoming lighter, and the last few chambers white. 



Diameter of the Tortugas specimens usually not exceeding 0.4 mm. 



This is one of the species described by d'Orbigny from Cuba. It 

 has been neglected since that time except the reference I have made 

 to it when recording it from the north coast of Jamaica. It has 

 proved to be one of the most common species in the Tortugas col- 

 lection, occurring at 17 of the 20 stations. It is very definite' in its 

 characters and shows very little variation. The peculiar coarse 

 ornamentation of the wall is very characteristic and constant, 

 and with the shape and size it should make this easily distinguished 

 from other species. D'Orbigny's figures of this are very good, the 

 ventral side only not being entirely typical, as a comparison of 

 our figures will show. The chambers of the earlier coils are very 

 indistinct, but the later ones stand out very strongly one from 

 another. The color in living specimens is a dark brown, except 

 the last few chambers, but in empty tests this becomes much less 

 noticeable. 



The records from Cuba, Jamaica, and the Tortugas show that 

 T. candeiana is perhaps widely distributed in shallow water in the 

 West Indian region, and possibly elsewhere. 



