IN THE MUD OF THE LEVANT. 77 



Verneueilina. It is triangular, the edges being 

 sometimes sharp and produced. The lines of 

 division into chambers are very indistinct. The 

 species is common. This species, or one very 

 closely resembling it, is in the cabinet of Mr. 

 Bean, of Scarborough, who obtained it from the 

 Irish coast, and who also possesses, from the 

 same locality, specimens not to be distinguished 

 from figs. 61, 62, and 64. In the recent state, all 

 these forms present an opaque aspect, very dif- 

 ferent from the glassy transparent appearance of 

 the Levant Textillaria. The fossils exhibit the 

 same opacity. 



Fig. 6ij is a species of Marginulina, there being 

 a distinct projection at the superior angle of the 

 last chamber, in which the terminal orifice is 

 situated. 



Fig. 67 is a beautiful Cristellaria (D Orbigny), 

 exhibiting an excellent illustration of the tendency 

 of the straight forms to assume the spiral type. It 

 is little more than a straight Marginulina, with the 

 young cells incurved. 



Fig. 68 is probably another species of the same 

 genus. 



