70 THE TERTIAEY FOSSIL ECHINOIDEA 



tubercles from those nearer the margin, and reaches the edge of the posterior ambulacra; 

 it turns round their outer terminations and crosses over the posterior interradium 



rather far back. 



Locality. Kachh: stream-course north-west side of Hikelu Hill. Miocene 



series. Survey-numbers C 061 B f , C 061 {h). 



Illustrations of the Species in Plate VII. 



Fig. 9. Abactinal view : natural size. 



10. Actinal view : natural size. 



11. Part of the ornamentation near the anterior ambulacrum : magnified. 



12. A tubercle: magnified. 



Plate XI. 

 Fig. 5. The apical system, showing the small pores. 



Gems EUSPATANGUS, Agassiz, 1847. 



1. Edspatangus patellaeis, d'Archiac & Haime. Plate XII, Figs. 3-5. 



A specimen of this beautiful species, unfortunately broken (as is the type) poste- 

 riorly, is in the collection from the Miocene series of Kachh. It coincides with the 

 drawing and description given by MM. d'Archiac and Haime [op. cit. p. 217, plate xv, 

 figs. 6 «, 6 S) ; but there are some points of detail which may be added. The large 

 tubercles in sunken scrobicules have narrow conical bosses and very small mamelons, 

 which are perforate and crenulated. The ornamentation is very pronounced, of 

 different-sized small tubercles mixed without much order. The fasciole is narrow but 

 distinct, passes over the front along the margin, and is more lateral than peripetalous. 

 The plastron on the actinal side is broad, and with the ambulacra forms a large portion 

 of the test ; it is nearly plain in its ornamentation. The anterior margin is slightly 

 notched, and the furrow is continued over to the mouth. 



Locality. Miocene series of Kachh : Wahior stream near Chiropira. Survey- 

 number C 055 B. 



Illustrations of the Species in Plate XII. 

 Fig. 3. Actinal surface ; natural size. 



4. Odd ambulacrum : magnified. 



5. Fasciole and ornamentation : magnified. 



Amongst the collection from Kachh is a specimen the locality of which is 

 unknown : — 



Genus SCHIZASTEE. 

 1. ScHizASTEE Geanti, Buncan 8f Sladen. Plate VI, Figs. 8-12. 



The test is oval, broad and rounded in front, the greatest breadth being behind 

 the antero-lateral ambulacra, and narrow almost to a point behind; it is depressed 



