OF KACHH AND KArrYWAE. 89 



The peripetalous fascicle resembles that of the type, and is very distinct ; it is 

 narrow where it passes over the keel, behind the posterior ambulacra. The subanal 

 branch passes rather close beneath the oval elliptical anus, which is considerably 

 sunken in consequence of the projection of the keel backwards and of the similar 

 direction of the termination of the actinal plastron. The anus is visible from the 

 actinal surface. 



Finally, the projecting actinal plastron, bounded by the peculiarly granulated 

 shagreened posterior ambulacra, is as definite as in the type. The posterior lip has a 

 very decided fold in well-preserved specimens. 



Locality. Kattywar Miocene. Three miles east by north of Gaga, and south-east of 

 Gurgat. Survey-number ^J. 



The fascicles on the posterior part of the test. The omamentation of the plastron. 



Genus BEISSOPSIS, Agasdz, 1840. 



1. Bkissopsis, sp. ■? 



A much crushed specimen of an Echinoderm is in the collection from Kattywar ; 

 and its generic determination is so full of difiiculties that we place it with some doubt 

 under the genus Brissopsis : it is not Brissopsis scutiformis, d'Archiac & Haime*, 

 which is a Metalia of the Nummulitic of Sind. 



In the specimen under consideration the posterior petals are close, especially near 

 the apex, and their curve is concave forwards and outwards ; they are petaloid, very 

 widely displayed and shallow, closed at the end, with exceedingly narrow interporiferous 

 and broad poriferous zones, the pores of each pair being very far apart. 



The antero-lateral ambulacra are wide apart, but not nearly transverse, are shorter 

 than the posterior, and are in deep grooves, the pores being on the flanks. The inter- 

 poriferous area is rather broader than that of the posterior ambulacra, and yet not so 

 wide as the space between the pores of a pair. All the pairs are separated by well- 

 developed costse. The odd ambulacrum is in a deep groove, and the pores are small 

 and wide apart; the groove notches the margin. There are traces of a fasciole 



* Op. cit. plate xv, figs. 5 a and 5 b. 



