PLATE LXXIX. 



Fig. 



lad. HoLASTER LjEVts, vccr. PLANUS, JIanteli. Flint, with moulds of this species, 



showing its gregarious character 

 and stratigraphical position in 

 the Chalk with flints, Lewes. 

 Natural size. Collection of the 

 Rev. Prof. T. Wiltshire, F.G.S. 

 (P. 317.) 

 2 a. — suBGLOBOsus, Leske. Posterior border, natural size, showing a 



small variety of test from the Red Chalk 

 of Speeton, inflated at the ambitus, and 

 truncated posteriorly. Natural size. 

 Collection of the Rev. Prof. T. Wilt- 

 shire. (P. 319.) 



2 5. — — — Upper surface. 



3 a. Cardiaster fossorius, Benett. Posterior surface, natural size, showing the 



narrow posterior border ; anal area and high 

 position of the vent, an extremely sharp 

 angular variety. Cherty cast, from Lyme 

 Reo;is. Collection of the Rev. Prof. T. 

 Wiltshire. (P. 297.) 



3 6. — — — Upper surface of the same test, natural size, 



showing the deep anteal sulcus with angu- 

 lated borders and central position of apical 

 disc. 



4 a. HoLASTER OBLiQUUs, Wright. Posterior border. Natural size. Red Chalk 



of Hunstanton. Collection of the Rev. 

 Prof. T. Wiltshire. (P. 313.) 

 a b. — — — Upper surface, showing test covered with 



small tubercles. 



