rust] radiolaria. 109 



1-). DlCTVOMITliA POLVFOKA, Zittol. 



Phite XVT., tig. 2 



Dicfijoniitra ]}oh/pora^ Zittel, 1876. Zeitschi'ift dec dcutsch, geol. 



Gesellsch., Band 28, p. 80, Taf. IT., tig. 1. 

 Shell slender, conical, rough, with six to nine deep strictures. Length 

 and breadth of the joints gradually increasing, so that the eighth joint 

 is twice as long and broad as the third. Pores regular, circvdar, in 

 transverse rows in each joint, the last joint having from live to six 

 rows. 



Dimensions : — Length of the slie^ll (with eight joints), 0'24 nnn. 



Length of the eighth joint, 0*04 " 



Bi-eadtli " " " 0-1 " 



Length of thii-d joijit, 0*02 " 



Breadth " " 0*05 " 



Occurrence : frequent. 



This species is likewise found in Secondaiy rocks of Northein 

 Germany (Cretaceous chalk of Brujiswick), Zittel ; in the Neocomian 

 ohalk of Gardenazza (St. Cassian). and tlie (xault Coprolites of Zilli 

 {Saxony), Rllst. 



14. DicrrvoMiTHA multk^ospaia, Zittel, 



Plate XVL, tig. :l 



Diet ijoi nit ra muHicostata, Zittel, I87r). Zeitschrift dei' deutsch. geol. 

 Gesellsch., Band 28, p. 81, Taf. TL, tig. 2-4. 



Shell slender conical with prominent longitudinal i-ibs, atid fi-om eight 

 to ten deep strictures. Length and breadth of the joints gradually 

 increasing, the eighth joint being twice as long and broad as the fourth 

 Joint. Pores regular, circular, one series in each longitudinal fun-ow, 

 three to four pores in each joint. 



Dimensions : Length of the shell (with eight joints), 0*2 nnn. 



" " fourth joint, 0*02 " 



" " eighth " 0*04 " 



Breath " fourth " 0*04 " 



II u eighth " 0'08 " 



Occurrence : frequent. 



This species is likewise found in Secondary rocks of North (xermany 

 (Ohalk of Brunswick, itc), Zittel. 



