4RT. 9 RECENT FORAMIISriFERA — CUSHMAN" AND WICKENDEN 5 



Family FISCHERINIDAE 



Genus FISCHERINA Terquem, 1878 



FISCHERINA DUBIA (d'Orbigny) 



Plate 2, figures 4 a-c 



Rotalina dubia d'Orbigxy, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839, 



"Foraminiferes," p. 91, pi. 2, figs. 29, 30. 

 Fischerina dubia Cushman, Publ. 311, Carnegie lust. Washington, 1922, p. 



59, pi. 10, figs. 6, 7. 



Test composed of a few coils, the early portion undivided, the last- 

 formed coil divided usually into four chambers or sometimes five, all 

 visible from the dorsal side, only those of the last-formed coil from 

 the ventral side as the chambers on that side are completely invo- 

 lute, ventral side somewhat concave, dorsal side slightly convex; 

 utures distinct but not depressed; wall thin, translucent, of a milky- 

 white color; aperture at the end of the last-formed chamber, circular, 

 or the inner portion somewhat flattened. 



Diameter 0.40 mm., thickness 0.15 mm. 



This species was described from Cuba by d'Orbigny, and has also 

 been recorded from the Tortugas region. It also resembles closely 

 Fischerina helix Heron-Allen and Earland, but does not have the spire 

 of that species. 



Family TROCHAMMINIDAE 



Genus CARTERINA H. B. Brady, 1884 



CARTERINA FULVA Cushman 



Plate 2, figures 6 a-c 



Carlerina fulva Cushmax, Publ. 342, Carnegie Inst. Washington, 1924, p. 10, 

 pi. 1, fig. 3. 



Test rotaliform, slightly longer than broad, compressed; chambers 

 5-8 in the last-formed coil; sutures distinct but not depressed on the 

 dorsal side, slightly depressed on the ventral side, curved; wall very 

 thin, translucent, composed largely of fusiform bodies, irregularly 

 arranged; aperture on the ventral side toward the umbilicus; color 

 yellowish-brown throughout. 



Length 0.26 mm., breadth 0.22 mm., thickness 0.08 mm. 



This species was originally described from Samoa and it is interest- 

 ing to find it ranging further to the east to Juan Fernandez. It is to 

 be suspected that the species also occurs as far westward as the east 

 coast of Africa. 



Family LAGENIDAE 



Genus LENTICULINA Lamarck, 1804 



LENTICULINA CONVERGENS (?) Bornemann 



Plate 2, figures 5 a,b 



There are a ver}" few specimens of the form figured which are of 

 the general appearance of specimens usually referred to this species 

 of Bornemann. 



