96 FORAMINIFERA 



typically enlarging in size as added, simple; walls finely 

 arenaceous with much cement, with often a double wall; aper- 

 ture usually simple and terminal. 



Carboniferous to Cretaceous. Widely distributed. 



There is often an outer wall which is largely cement, smooth, 

 and sometimes seems to be imperforate. Specimens are often 

 very abundant in the Pennsylvanian. , 



Genus HORMOSINA H. B. Brady, 1879 



Plate 8, fig-ures 13-15 



Genotype, by designation, Horinosina glohulifcra H. B. Brady 



Hormosina H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, 1879, p. 56. 



Test free, composed of a straight, curved, or irregular linear 

 series of subglobular, fusiform or pyriform chambers; wall 

 finely arenaceous, with a large proportion of usually ferrugin- 

 ous cement; aperture circular, terminal or at one side, often with 

 a definite neck. 



Jurassic to Recent. The living species are characteristic of 

 cold or deep waters. 



The species differ from those of Reophax largely in the much 

 greater amount of cement m the wall and greater development 

 of the neck at the apertural end. 



Genus HAPLOSTICHE Reuss, 1861 

 Plate 8, figures 16-19 



Genoholotype, Haplostiche foedissima Reuss 



Haplostiche Reuss, Sitz. Bohm. Ges. Wiss., Jahrg. 1861, p. 16. 

 Nodosaria (part) of authors. 



Litu.ola (part) Jones and Parker, Quart. Journ. Geol. Soc, vol. 16, 

 1860, p. 307. 



Test free, cylindrical or tapering, composed of a linear series 

 of chambers, the interior labyrinthic; walls thick, coarsely 

 arenaceous ; aperture in the early chambers simple, in the adult 

 of several pores or dendritic, occasionally with a short neck. 



Carboniferous (?), Jurassic to Recent. The living forms are 

 characteristic of the West Indian and Indo-Pacific regions in 

 warm rather shallow water. It differs from the several genera 

 preceding in the labyrinthic interior and multiple apertures. 



