REPORT ON THE FORAMINIEERA. 
67 
Test polythalamous ; nautiloicl or Rotaliform ; aperture 
simple, situated at the inner margin of the final 
chamber, ...... Endotliyra, Phillips. 
Test nautiloid ; aperture consisting of a number of pores 
on the face of the terminal chamber ; with pores (?) 
also in the septal depressions, . . . . Bradyina, Moller. 
Test adherent, composed either of numerous segments 
subdivided into chamberlets, or of an acervuline mass 
of chamberlets either arranged in layers or confused, Stacheia, Brady. 
Sub-family 4. Loftusinse, — test of relatively large size ; lenticular, spherical, or 
fusiform ; constructed either on a spiral plan or in concentric layers, the chamber- 
cavities occupied to a large extent by the excessive development of the finely arenaceous 
cancellated walls. 
Test spiral, nautiloid ; lenticular or subglobular ; smooth 
externally ; chambers numerous, involute, . . Cyclcimmina, Brady. 
Test of large size, spiral ; elongated in the direction of the 
axis ; fusiform or elliptical ; resembling Alveolina in 
contour, ...... Loftusia, Brady. 
Test spheroidal or more or less compressed, composed of 
concentric layers, ..... ParJceria, Carpenter. 
Family V. TEXTULARIDJE. 
Tests of the larger species arenaceous, either with or without a perforate calcareous 
basis ; smaller forms hyaline and conspicuously perforated. Chambers arranged in two 
or more alternating series, or spiral, or confused ; often dimorphous. 
Sub-family 1. TextularillS8, — typically bi- or tri- serial; often bi-, rarely 
tri- morphous. 
Segments in two rows alternating with each other; normal 
aperture an arched slit at the base of the inner wall 
of the final segment, .... Textularia , Defrance. 
Test Textularian, complanate ; compressed in a direction 
at right angles to the normal plane, so that the two 
alternating series of segments appear on the two 
narrow lateral edges, .... Cuneolina, d’Orbigny. 
Test triserial, with Textularian aperture, . . Verneuilina, d’Orbigny. 
