THE FAMILY TEXTULAKIID.E 175 



form, the short obhque sutures, and the rounded 

 commencement. The communication between the 

 chambers at their point of junction sho^Ys an atte- 

 nuated spouted aperture, and this is covered over by 

 the hoodhke prolongation formed by the succeeding 

 chamber. 



The fossil specimens are found in some abundance 

 in the Gault and Chalk of N. Germany and Bohemia. 

 Those from the recent soundings by the ' Challenger ' 

 occur at considerable depths — namely, 1,375 to 2,350 

 fathoms. Cretaceous and Beceuf. (Plate 9, fig. S.) 



Siih-family 3. Cassidulinin.e. 



Test consisting of a Textularia-like series of 

 alternating segments, more or less coiled upon itself. 



Genus Cassidulina, D'Oebigny. 



Test biserial, folded on its long axis, and coiled 

 more or less completely on itself ; rarely dimorphous. 

 Lowe)- Cretaceous to Becent. 



Example. — C. calahra, Seguenza sp. (Burseolina), 

 'Formaz. Terz. Keggio,' 1879, p. 138, pi. xiii. 

 figs. 7a, h. 



Our present example is one of the more globose 

 of the Cassiclulince, in which the suture lines are 

 fiush with the surface of the shell. The test is 

 usually of a polished texture. The fossil specimens 

 came from Eeggio, Calabria. As a recent form 

 Cassiclidina calahra has been recorded by Dr. H. B. 

 Brady from Kaine Islet, Torres Strait, 155 fathoms, 



