FAMILY 8. LITUOLIDAE 111 



base of the apertural face, supplemented by numerous pores in 

 the central portion of the apertural face. 



Cretaceous to Recent, Most of the recent species are char- 

 acteristic of cool or deep waters. 



Genus CHOFFATELLA Schlumberger, 1904 



Plate 10, figures 19, 20 

 Genoholotype, Choffatella decipiens Schlumberger 



Choffatella Schlumberger, Bull. Soc. Geol. France, ser. 4, vol. 4, 1904, 

 p. 763. 



Test planispiral, very much compressed, composed of numer- 

 ous narrow elongate chambers, nearly completely involute, the 

 coils increasing rapidly in height; wall arenaceous with much 

 cement, becoming labyrinthic, especially on the sides and 

 periphery of the chambers ; aperture, an elongate series of small 

 pores on the narrow apertural face. 



Cretaceous. Portugal, France and Japan. 



This genus is similar to Cyclammina, but is complanate and 

 much compressed. 



Genus DICTYOPSELLA Munier-Chalmas, 1899 

 Plate 55, figures 6-8 



Genotype, by designation, Dictyopsella kiliani Munier-Chalmas 



Dictyopsella Munier-Chalmas, in Schlumberger, Bull. Soc. Geol. 

 France, ser. 3, vol. 27, 1899, p. 462. 



Test planispiral, much compressed, partially involute in the 

 young, later becoming complanate; chambers distinct, divided 

 in the interior into a complex net work of small chamberlets; 

 sutures slightly depressed or flush with the surface ; wall finely 

 arenaceous. 



Cretaceous. 



A very peculiar new arenaceous genus Yaberinella just 

 described by Dr. T. Wayland Vaughan belongs close to 

 Dictyopsella. 



