FORAMINIFERA OF NORTH PACIFIC OCEAN. 91 



POLYMORPHINA REGINA H. B. Brady, Parker, and Jones. 



Plate 41, figs. 6, 7. 



Polymorphina regina H. B. Brady, Parker, and Jones, Trans. Linn. Soc. Lon- 

 don, vol. 27, 1870, p. 241, pi. 41, figs. 32a, b.—K. B. Brady, Rep. Voy. Chal- 

 lenger, Zoology, vol. 9, 1884, p. 571, pi. 73, figs. 11-13. — Egger, Abh. kon. 

 bay. Akad. Wiss. Munchen, CI. n, vol. 18, 1893, p. 310, pi. 9, figs. 45, 50, 

 51. — Millett, Journ. Roy. Micr. Soc, 1903, p. 265. — Chapman, Journ. 

 Quekett Micr. Club, 1907, p. 132, pi. 10, fig. 4.— Bagg, Proc. U. S. Nat. 

 Mus., vol. 34, 1908, p. 149.— Chapman, Proc. Roy. Soc. Victoria, vol. 22, 

 1910, p. 281. 



Description. — Test fusiform; chambers several, inflated, with deep 

 sutures; wall ornamented with elongate, coarse costae, usually not 

 broken on the individual chambers; aperture radiate, produced. 



Length 0.60 to 1 mm. 



Distribution. — The only records for this species hi the North Pacific 

 are from the region of the Hawaiian Islands. Brady found it in the 

 Challenger material from off Honolula in 40 fathoms. Bagg records 

 it from Albatross station H4694 in 865 fathoms as rare, and I have 

 found it in material from Albatross station H2922 in 268 fathoms. It 

 seems to be a tropical species of comparatively shallow water. 



Siabfamily 4. UVIGERININ^]. 



Test composed of several chambers, typically spirally arranged, 

 especially in the earlier portion, later chambers often becoming 

 loosely arranged, or even uniserial; wall smooth or variously orna- 

 mented; aperture typically consisting of a neck with a definite 

 phialine lip. 



In Uvigerina the spirally arranged chambers are typical, old age 

 characters appearing in the loss of ornamentation or in the tendency 

 to become loosely spiral as in U. interrupta. In Siphogenerina the 

 early chambers are spiral or biserial, especially well developed in the 

 microspheric forms, and the later development is uniserial. 



Genus UVIGERINA d'Orbigny, 1826. 



Uvigerina d'Orbigny (type, U. pygmsea d'Orbigny), Ann. Sci. Nat., vol. 7, 1826, 

 p. 268.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 573. 



Description. — Test elongate, spiral, consisting of numerous cham- 

 bers, usually arranged triserially, occasionally in later growth with 

 fewer than three chambers hi each volution; wall calcareous, perforate, 

 hyaline, smooth or ornamented with spines or costse or modifications 

 of them; aperture with usually a tubular neck at the end of which 

 is a phialine lip. 



The genus Uvigerina is one of the most clearly distinguished of any 

 of the genera of the Foraminifera. Its triserial arrangement of 

 chambers with a tubular aperture and phialine lip will at once serve 



