18 BULLETIN 104, UNITED STATES NATIONAL MUSEUM 



Subfamily 3. Pulleniatininae 



Test in the early stages trochoid and like Globigerina, later becoming 

 involute and the later chambers covering the earlier ones; test with- 

 out spines in the adult; wall coarsely porous. 



Genus PULLENIATINA Cushman, 1927 



Bull. 104, pt. 5, p. 43 (Pullenia ohliquiloculata Parker and Jones). 



Genus SPHAEROIDINELLA Cushman, 1927 



Bull. 104, pt. 5, p. 38 (Sphaeroidina dehiscens Parker and Jones). 



Subfamily 4. Candeininae 



Test trochoid, in the young with the chambers roughened and spi- 

 nose and with the aperture single «,s in Globigerina, in the adult the 

 chambers smooth, without spines and the apertures formed by rows 

 of circular or elliptical openings along the sutures. 



Genus CANDEINA d'Orbigny, 1839 



Bull. 104, pt. 5, pp. 34, 35. 



Family 40. GLOBOROTALI I DAE. —Family 41. ANOMALINI- 

 DAE.— Family 42. PLANORBULINIDAE.— Family 43. RU- 

 PERTIIDAE.— Family 44. HOMOTREMIDAE. (To be included 



in Part 8 of this Bulletin.) 



Family 45. ORBITOIDIDAE 



(Fossil — Cretaceous to Miocene.) 



SYSTEMATIC PART 



Family 16. MILIOLIDAE 



Test typically coiled about an elongate axis in various planes, at 

 least in the microspheric young of even the specialized genera; 

 chambers usually a half coil in length, simple in most genera, in a few 

 with complex interiors, in the adult of many forms variously arranged; 

 wall normally calcareous, imperforate, in some species of the more 

 primitive genera with included sand grains on the exterior, under acid 

 conditions developing a siliceous or chitinous test; aperture terminal, 

 simple or cribrate, usually with a tooth. 



The earliest appearance of this family is in the Carboniferous. 

 There species of Agathammina first appear which are closely allied to 

 Glomospira but are more regularly coiled about an elongate axis with 

 the aperture normally near one end of the test. The basis of the test 

 is calcareous and imperforate although the exterior may be covered 

 with arenaceous material. In some of the species of Agathammina, 



