140 FORAMINIFERA 



FAMILY 14. NEUSINIDAE 



Test apparently attached, arenaceous with some chitin, whole 

 body of the test labyrinthic, flexible ; apertures numerous, small. 



Genus NEUSINA Goes, 1892 

 Plate 16, figures 2-4 



Genoholotype, Neusina agassizii Goes 

 Nettsina Goes, Bull. Mus. Comp. Zool., vol. 23, 1892, p. 195. 



Test in the early stages irregularly planispiral, later uncoiled 

 and very much compressed and of varying shape; wall arena- 

 ceous with much chitin, flexible, with root-like processes of chitin 

 from portions of the periphery; apertures numerous, along the 

 periphery of the chamber. 



Recent. Pacific. 



EXPLANATION OF PLATE 16 



loftusidae, neusinidae, silicinidae 



Fig. 



1. Loftusia persica H. B. Brady. X 1. (After type figure). 

 2-4. Neusina agassizi Goes. Figs. 2, 3 (After type figures). Fig. 2, 

 X %. Fig. 3, Transverse section, x 8. Fig. 4, Specimen show- 

 ing coiled young. X %. 

 5-7. Botellina labyrinthica H. B. Brady. X 7. (After type figures). 

 Fig. 6, Longitudinal section. Fig. 7, Transverse section. 

 8-10. Botellina innnata Pearcey. (After type figures). Figs. 8, 9, About 

 natural size. Fig. 10, Longitudinal section. X 3. 

 11-14. Jullienella foetida Schlumberger. (After type figures). Figs. 11, 

 12, X %. Fig. 13, Transverse section. X 8. Fig. 14, Longi- 

 tudinal section of tip. X 8. 



15. Rzehakina epigona (Rzehak). (After type figure), a, side view; 



b, peripheral view; c, section. 



16. Silicina limitata (Terquem). X 25. (After type figure), a, side 



view; h, peripheral view. 



17. Involutina silicea (Terquem). X 8. (After type figure), a, side 



view; b, peripheral view. 



18. Problematina delongschanipsi (Terquem). X 50. (After type fig- 



ure), a, side view; b, peripheral view. 



