NO. 4 CUSHMAN AND MCCULLOCH : SOME VIRGULININAE 203 



Distribution. — These stations from Ketchikan, Alaska, in 8 fms., 

 southward along Mexico, in the Gulf of California in 2 to 53 fms. ; off 

 the Galapagos Islands in 9-16 fms.; and off Colombia and Peru in 15 to 

 116 fms. Another record of interest is Station 636, material from an 

 anchor in the Bay of Naples, Italy. 



Bolivina plicata d'Orbigny 

 Plate 24, Figs. 13-15 



Bolivina plicata d'Orbigny, Voy. Amer. Merid., vol. 5, 1839, p. 62, 

 pi. 8, figs. 4-7.— Cushman, Bull. 104, U.S. Nat. Mus., pt. 3, 1922, p. 39; 

 Contr. Cushman Lab. Foram. Res., vol. 2, pt. 2, 1926, p. 40, pi. 6, figs. 

 \a, b; Bull. Scripps Instit. Oceanography, Tech. Scr., vol. 1, 1927, p. 154, 

 pi. 3, figs. 11, 12; Special Publ. 9, Cushman Lab. Foram. Res., 1937, 

 p. 123, pi. 15, figs. 6-8. 



Test small, thick, elongate, very slightly tapering, the periphery 

 broadly rounded, initial end broadly rounded ; chambers distinct, inflated ; 

 sutures distinct, somewhat depressed, nearly straight, at right angles to 

 the elongate axis ; wall ornamented with one or two costae on each side, 

 usually running the entire length of the test except for the last-formed 

 chamber, the costae rounded at the surface and broad, the surface and 

 sides very finely plicated with alternating grooves and ridges, somewhat 

 oblique, but nearly parallel to the costae themselves ; wall finely perforate ; 

 aperture elongate, extending somewhat above the outline of the chamber, 

 owing to the definite lip that is developed. Length up to 0.50 mm.; 

 breadth 0.15-0.20 mm.; thickness 0.08-0.10 mm. 



This species described by d'Orbigny from off Chile is rare in our col- 

 lections, occurring in small numbers at Stations 55, 57, 59, 251, 339, 517, 

 1077, 1095, 2097, 2098, 2100, 2101, 2103, 2104, 2134, 2146, 2149, 2151, 

 2152, 2156. 



Distribution. — The northward record is off Redondo, California, in 

 70-240 fms.; southward ofif Mexico, and in the Gulf of California in 

 2-225 fms.; off Central and South America in 12-116 fms. 



Bolivina pseudobeyrichi Cushman 

 Plate 25, Figs. 1-3 



Bolivina pseudobeyrichi Cushman, Contr. Cushman Lab. Foram. 

 Res., vol. 2, pt. 2, 1926, p. 45 ; Bull. Scripps Instit. Oceanography, Tech. 

 Sen, vol. 1, 1927, p. 156, pi. 3, fig. 7. — Cushman and Moyer, Contr. 



