OF KACHH AND KATTYWAE. 87 



these vertical processes is to subdivide the fossettes into several others. On either 

 side, and actinally to the primary and its process, is a well-marked small fossette? 

 usually more or less oval or elliptical in outline and taller than broad. Nearer the 

 median line is another fossette of nearly the same size and shape ; and still nearer the 

 angle of the diverging costse is a more or less concave-shaped one. Even this may be 

 subdivided. On the poriferous side of the primary, and between the extremity of the 

 second and third pairs and the vertical costulate process which exists between the 

 ambulacrum and the vertical line of the primaries, is a fossette.; it is broad towards the 

 primary and narrow towards the pores. Hence there are two fossettes between the 

 primary and the poriferous zone, and three or four fossettes in a row between the 

 transverse oblique or zigzag ribs which stretch across the interambulacral areas. 

 Abactinally the number of fossettes diminishes and actinally also. 



The minor ornamentation of the plates on either side of the primaries and of the 

 ribs is very elegant, and consists of small mammillated tubercles and distinct miliaries. 

 Usually there is a small tubercle second to the primary in size on either side of it, and 

 beyond that which is in relation to the arch of miliaries abactinal to the primary. 

 Tubercles may be on either side of the root of the vertical processes or upon it. The 

 tubercles are imperforate and non-crenulate. 



Locality. Kattywar Miocene series. Three miles east by north of Gaga and 

 south-east of Gurgat. Survey-number ^. 



Illustrations of the Species in Plate XIII. 



Fig. 11. The test, side view: natural size. 



12. Part of an ambulacrum and interradium : magnified. 



Order ECHINOIDEA EXOCYCLICA. 



Family 8PATANQIB^. 



Suhfamihj SPATANGINJE. 



Genus EUSPATANGUS, Agassiz, 1847. 



Eupatagus, Agassiz, 1847. 

 1. EUSPATAJSTGUS PATELLAKIS, d'Ai^cMaC. 



This species is found in Kattywar ; and our specimens show the fasciole very dis- 

 tinctly, externally to the posterior ambulacra. It crosses the posterior interradium 

 considerably in the rear of the line of the distal end of the ambulacra. 



The anterior poriferous zone of the antero-lateral ambulacra has its pores visible. 



