8 SiDEBOTTOM, Foraminifera Jvovi the Islmid of Delos. 



entosolenian tube is present in all cases. Frequent. 

 Examples occur frequently of a more compressed and 

 clear form which has the keel almost confined to the 

 aboral end, the sides of the tests feebly carinate, the 

 mouth slightly produced and carinate at its sides. The 

 costs in these cases are exceedingly delicate. 



*Lagena staphyllearia, Schwager, sp. (PI. i, figs. i8^ 



19, 20). 



Lagena staphyllearia (Schwager, sp.) Millett (:0l), 

 p. 619, pi. 14, fig. 2. 



L. staphyllearia (Schwager, sp.), Flint ('99), p. 307, pi. 



54, fig- I. 



All the specimens are compressed. Fig. 18 shews 

 this form with the basal spines separated from each other, 

 test carinate as in L. marginata. Fig. 19 shews it with 

 what may be considered as four spines joined together, 

 test non-carinate. Intermediate forms occur, connecting 

 these two varieties. Respectively frequent and rare. A 

 single specimen with two spines, one on either side of the 

 test, was found (fig. 20). 



*Lagena quadrata, Williamson, sp. (PI. i, figs. 21, 22, 

 and PL 2, figs, i, 2, 3.) 



Entosolenia marginata, var. quadrata, Williamson ('58), 

 p. II, pi. I, fig. 27. 



Lagena laevigata, var. quadrata (Williamson), Wright 

 ('86), p. 324, pi. 26, fig. 9. 



L. quadrata (Williamson), Egger ('93), p. 331, pi. 10, 

 figs. 7^, 79. 



L. quadrata (Williamson), Brady ('84), p. 475, pi. 59, 

 figs. 3, 16, and pi. 60, fig. 5. 



Charming variations of this species are present in fair 

 numbers. *Fig. 21 has the mouth placed in an immature 



