50 Dr. G. J. Hlnde on Rculiolaria from the 



Stauroplegma hrevispina, sp. n. (PI. IV. fig. 5.) 



Surface of cortical shell smooth, the outer wall distinct 

 from the interior meshwork, tlie medullary test now shown 

 by its darker structure. Radial spines conical, shorter than 

 the radius of the test. Diameter of shell -10 millim., of 

 medullary test "06 ; length of spines "04, basal thickness '017. 



Distribution. Hartree Hill, Kilbucho, Peeblesshire. 



Stauroplegma compressum^ sp. n. (PI. IV. fig. 6.) 



Test slightly elliptical, in part perhaps due to compression ; 

 surface uneven, with here and there circular pores '015 millim. 

 wide. The spines tapering, about two thirds as long as the 

 diameter of the test, apparently unequal in length ; they can 

 be traced to the surface of the inner shell. Diameter of test 

 •16, of inner shell '06 ; length of spines "09 to "12, width at 

 base '013 millim. In the specimen figured one spine has 

 been broken off. Rare. 



Distribution. Near Moorfoots, Edinburghshire. 



Stauroplegma barbatum, sp. n. (PL III. fig. 6.) 



Surface of cortical test rougli, as if with minute spines. 

 The medullary test indicated in the specimen figured by a 

 partially clear subcentral space. Spines longer than the 

 diameter of the sphere ; they are not strictly in the form of 

 a cross, but their present position may in part arise from sub- 

 sequent misplacement. Diameter of sphere '135; length of 

 spines '18, thickness at base "02 millim. Rare. 



Distribution. Hartree Hill, Kilbucho, Peeblesshire. 



Stauroplegma diffusum^ sp. n. (PI. IV. fig. 4.) 



Surface of cortical test irregular and uneven ; an inner 

 medullary shell is shown by a ring of darker structure, and 

 within this is a central lighter space, which may perhaps indi- 

 cate the presence of a second medullary test. The radial 

 spines are shorter tlian the radius of the sphere, measuring 

 Irom the surface. Diameter of sphere '13, of outer medullary 

 test "07, of inner test (?) -03 millim. ; length of spines '04, 

 thickness at base '012 millim. 



Distribution. Hartree Hill, Kilbucho, Peeblesshire. 



Family Astrosphserida, Hseckcl. 

 Spha^roidea with innr.erous (8 to 12 or more, commonly 



