OF WESTEEN SIND. 81 



smaller ones, or they merge into a raised rim around. In the antero-lateral region this 

 ornamentation is stiU larger and more pronounced ; but along the line of the odd 

 ambulacrum, over the ambitus, the tubercles become smaller and rarer, and moniliform 

 circlets of minute tubercles are seen. The tuberculation is large and distinct on the 

 keel between the postero-lateral ambulacra and on the transverse keel beyond the 

 generative pores ; it is also large on the inner slope of the keels of the anterior odd 

 ambulacrum, and it is largest and sparest of all below the ambitus in front of and at 

 the sides of the peristome. The posterior ambulacra, actinally, are marked with an 

 ornamentation of long and radiating moniliform lines of granules ; and the plastrom 

 between them has its prnamentation of rounded tubercles on flat scrobiciiles, small 

 posteriorly and large in front ; and the lines of tubercles seem to radiate from the 

 posterior keel-end. 



Height of specimens. Length. 



-To inch. Ij^ inch. 



-4 J7_ 



10 " 1 5> 



A. _6_ 



10 55 10 55 



_3_ _5_ 



10 55 10 55 



The largest specimen is ^o iiich broad. Some forms are slightly broader in front 

 than others ; and rarely there is an impression of the groove at the ambitus in front. 

 The young forms are more globular than the older ones. 



Localities. In the Eanikot series, north by east of Petiani (Survey-number 

 G xfy) ; hills east of Lynyan, from brown limestone (G -f-f §» and G ft?) ; east of 

 Kandaira, in Vero pkiin (G f-f-f) and Jhirak (Survey-number G flis) • 



EemarJcs. We are unacquainted with any species for which the present form 

 might be mistaken. It is especially distinguished by the elongate test, the egg-shaped 

 and regularly rounded marginal contour, and the characters of the petals and apical 

 disk. 



Illustrations of the Species in Plate XIX. 



Fig. 7. Upper view : natural size. 



8 . Actinal surface : natural size. 



9. The apical system : magnified. 



10. The longitudinal outline : natural size. 



11. Ornamentation on the anterior keel : magnified. 

 12.1 



1 3. VOutlines of young forms : natural size. 



14.J 



15. Test, from behind : natural size. 



2. Hemiastee, sp. 



There is a single small example of what was probably a Hemiaster in the 

 collection; but the test is unfortunately so much crushed, weathered, and badly 



