NO. 2172. NEW FORAMINIFERA FROM PHILIPPINES— CUSHMAN. 657 

 CRISTELLARIA ORBICULARIS (d'Orbigny), var. SUBCARINATA, new variety. 



Variety differing from the typical by having instead of a thin, 

 broad keel a very narrow one, which is thickened with a rounded 

 periphery, otherwise like the typical. 



Type-specimen.— (Csit. No. 9123, U.S.N.M.) from Albatross D5654, 

 in 805 fathoms. Gulf of Boni. 



CRISTELLARIA ORBICULARIS (d'Orbigny), var. SUBUMBONATA, new variety. 



Variety differing from the typical in its development of ornamental 

 characters, having a cluster of closely set raised knobs over the um- 

 bilical region, giving a decidedly umbonate appearance in face view, 

 remainder of the test smooth. 



Type-specimen.— (Cut. No. 9124, U.S.N.M.) from Albatross D5259, 

 in 312 fathoms, off northvv^estern Panay, Philippines. 



CRISTELLARIA ORBICULARIS (d'Orbigny), var. PAPILLATA, new variety. 



Variety with the keel reduced in width, and the earlier portion 

 with an ornamentation consisting of fine papillae rather evenly scat- 

 tered over the surface, in later growth gradually becoming peripheral 

 and in the last-formed chambers gradually becoming obsolete. 



Type-specimen. — (Cat. No. 9125, U.S.N.M.) horn Albatross D5152, 

 in 34 fathoms, Tawi Tawi group, Sulu Archipelago. 



CRISTELLARIA CALCARATA, new species. 



Test biconvex, but much compressed, closely coiled, about 7 or 8 

 chambers in the last formed coil, sutures curved and marked by 

 raised ridges running to the umbonal region, where they unite in a 

 central boss of clear shell material, which is typically excavated in 

 the center, forming a ring of material, periphery with a narrow keel 

 from which are rowel-like spines, the two sides often unequal in their 

 angles, apertural face flattened or even concave, aperture radiate. 



Diameter, about 2 mm. 



Type-specimen.— (Csit. No. 9126, U.S.N.M.) from Albatross D5370, 

 in 159 fathoms, off Marinduque Island, Philippines. 



CRISTELLARIA SUBMAMILLIGERA, new species. 



Cristellaria mamilligera H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 

 9, 1884, p. 553, pi. 70, figs. 17, 18 (not C. viainilligera Karrer). — Cushman, 

 Bull. 71, U. S. Nat. Mus., pt. 3, 1913, p. 74, pi. 34, fig. 6a (not 66 wMcli should 

 read 56). 



Test biconvex, close coiled, periphery with a thin keel, sutures 

 curved, limbate externally, ornamented by a raised ridge which ends 

 near the umbilical region in a protuberant knob, often a distinct 

 raised boss over the center of the umbilical region, keel entire and not 

 denticulate in well-preserved specimens; wall between the raised 

 ridges smooth; aperture radiate. 



36399°— Proc.N.M.vol.51— 16 42 



