ART. 9 RECENT FORAMINIFEHA — CUSHMAN AND WICKENDEN H 



Genus ANGULOGERINA Cushman, 1927 



ANGULOGERINA CARINATA Cushman 



Plate 4, figures 7 a-d 



Angulogerina carinata Cushman, Bull. Scripps Inst. Oceanography, Tech. 

 Ser., vol. 1, 1927, p. 159, pi. 4, fig. 3. 



Test generally triangular in section, initial end bluntly rounded; 

 chambers few, distinct, the three sides flattened, the angles sharply 

 carinate, often with fine radial tubules; sutures distinctly depressed; 

 wall thick, opaque, mostly smooth but with traces of some longitudinal 

 costae. 



This species was described from recent material from off the west 

 coast of America. It is interesting to note that Brady in the 

 Challenger Report (pi. 74, fig. 18) figures this species under another 

 name from north of Juan Fernandez m deep water. 



Family ROTALIIDAE 



Genus SPIRILLINA Ehrenberg, 1841 



SPIRILUNA VIVIPARA Ehrenberg, variety 



Plate 4, figures 9 a, b 



There are a few specimens of a form of Spirillina in which the later 

 coils are coarsely perforate as in the typical form of the species, but 

 the earlier coils are somewhat ornamented b}'^ radial lines. Such 

 forms are recorded from the South Pacific under various names by 

 Sidebottom, Chapman, and others. 



SPIRILLINA SPINIGERA Chapman, variety 



Plate 5, figures 1 a-c 



The figured specimen shows the characters of this form, which may 

 be considered a variety of Chapman's species. One side is flattened 

 and covered by a rugose ornamentation, the other somewhat rounded, 

 having radial lines and the inner edge along a spiral suture with a 

 row of pits each with a distinct border. The periphery is extended 

 into spinose projections similar to those seen in Chapman's species. 

 Not enough specimens were obtained to make clear the full characters. 



Genus PATELLINA Williamson, 1858 



PATELLINA ADVENA Cushman 



Plate 4, figures 10 a-c 



Patellina advena Cushman, U. S. Geol. Survey Prof. Paper 129-F, 1922, 

 p. 135, pi. 31, fig. 9; Prof. Paper 133, 1923, p. 37; Publ. 342, Carnegie 

 Inst. Washington, 1924, p. 32. 

 Test plano-convex, early portion composed of chambers spirally 

 arranged, later ones elongate and becoming nearly annular; chambers 

 partly divided by numerous longitudinal septae, visible from the 

 exterior, forming what seems to be a radiating pattern; ventral side 

 with numerous radiating lines near the periphery. 

 Diameter 0.30 mm., height 0.18 mm. 



