DESCRIPTIVE CATALOGUE OF RECENT FORAMINIFERA. 335 



aspects, give a fringed appearance to the margins of the segments. 

 Aperture at the end of a short, oval, tubular neck, with a broad, everted 

 edge. Diameter, about 0.5 mm. (-^ inch). 



Locality. — Gulf of Mexico (station 2352), 463 fathoms. 



Genus ANOMALINA. 



Characters similar to those of Truncatulina, except that the two faces 

 are more nearly alike, the general contour being biconcave or sub- 

 nautiloid, and the whole more or less evolute. 



ANOMALINA AMMONOIDES Reuss. 

 (Plate 78, fig. 4.) 



Symmetrical, about equally convex on the two faces, a little depressed 

 at the umbilici, margin rounded ; segments numerous, in three or four 

 convolutions; sutures thickened with clear shell substance, sometimes 

 a little raised; walls rather coarsely perforate; aperture in the middle 

 line at the end of the last segment. Section has laid open every cham- 

 ber of all the convolutions. Diameter, about 0.8 mm. (^r inch). 



Locality. — Collected in large numbers off the west coast of Cuba 

 (station 2352), 463 fathoms. 



ANOMALINA GROSSERUGOSA Giimbel. 

 (Plate 78, fig. 5.) 



Less symmetrical than A. ammonoides, superior face more compressed, 

 segments fewer, and only those of the final convolution, about seven in 

 number, visible on the inferior face. Diameter, about 1 mm. (- 2 -V inch). 



Localities. — Gulf of Mexico and coast of Brazil (stations 2394, 2760), 

 420 and 1,019 fathoms. 



■v 



ANOMALINA ARIMINENSIS d'Orbigny. 

 (Plate 79, fig. 1.) 



Very much compressed, thin, margin square, with rounded angles; 

 some of the earlier segments visible on the inferior face; sutures thick 

 and sometimes prominent; walls transparent, distinctly showing out- 

 lines of segments and convolutions. Diameter, about 0.6 mm. (^ inch). 



Locality. — Caribbean Sea (stations 2150, 2355), 382 and 399 fathoms. 



ANOMALINA CORONATA Parker and Jones. 

 (Plate 79, fig. 2.) 



Irregularly biconvex, the under side less convex than the upper, de- 

 pressed at the center on both sides, often more or less distorted, the 

 segments of the last convolution rapidly increasing in breadth, forming 

 an irregular ridge around the border of each face; walls very coarsely 

 porous. Diameter, about 0.25 mm. (-^ inch). 



Locality. — Off coast of Georgia (station 2416), 276 fathoms, 



