DESCRIPTIVE CATALOGUE OF RECENT FORAMINIFERA. 315 



CRISTELLARIA TENUIS Bornemann. 

 (Plate 61, fig. 2.) 



A small, elongate, slender, delicate shell, the initial portion com- 

 pressed; segments numerous, the earliest ones spirally arranged, the 

 others in linear series; walls thin and transparent; sutures near the 

 oral end transverse and more or less depressed; aperture terminal, 

 central. Length, 1.25 mm. (-^ - iuch), more or less. 



Locality. — Atlantic Coast of the United States; station doubtful. 



CRISTELLARIA OBTUSATA, variety SUBALATA Brady. 



(Plate 61, fig. 3.) 



Elongate, slightly compressed and curved, rather broader at the 

 initial than at the oral end ; surface smooth ; ventral margin rounded, 

 dorsal margin acute and distinctly carinate at the aboral extremity; 

 early segments spiral, later ones linear-oblique; sutures distinct but 

 not depressed. Length, 2.5 to 4 mm. (^ to £ inch). 



Localities. — Gulf of Mexico, off Cape Fear, and off Santa Lucia, West 

 Indies (stations 2395, 2679, 2754), 347, 782, 880 fathoms. 



CRISTELLARIA COMPRESSA d'Orbigny. 

 (Plate 62, fig. 1.) 



More or less elongated, much compressed, broad at the initial end, 

 straight or curved, the early segments piano-spiral with the outer mar- 

 gin more or less broadly carinate, the later segments rectilinear; 

 sutures oblique. Length, 2.5 to 4.7 mm. (^ to ^ inch). 



Localities. — Off Nantucket Shoals, south of Long Island, Gulf of 

 Mexico (stations 2041, 2234, 2385), 730 to 1,008 fathoms. 



CRISTELLARIA RENIFORMIS d'Orbigny. 



(Plate 62, fig. 2.) 



Short, compressed, the peripheral edge sharp and sometimes carinate; 

 segments arranged piano spirally, except the last two or three, which are 

 applied obliquely, forming a projecting angle, in which the aperture is 

 situated. Length, about 2.5 mm. ( ^ inch). 



Localities. — North Atlantic (four stations), Gulf of Mexico (stations 

 2041, 2212, 2568, 2584, 2377, 2385), 210 to 1,780 fathoms. 



CRISTELLARIA SCHLOENBACHI Reuss. 

 (Plate 63, fig. 4.) 



Small, elongate, nearly circular in section; spiral portion very short 

 and inconspicuous, the remaining portion consisting of a few diagonal 

 segments with slightly depressed sutures; surface smooth; Avails thin 

 and transparent. Length, 0.8 to 1 mm. (-^ to ^= inch). From the 

 Gulf of Mexico (stations 2377, 2700), 210 and 169 fathoms. 



