two new Genera allied to Loflusla. 1 73 



term " Stoliczlciella Theobaldi^'' thus coupling two names 

 well known in the Geological Survey of India. 



To the five specimens of Parkeria I will more particularly 

 refer hereafter ; meanwhile let us proceed to the description of 



StoUczkiella Theohaldi^ gen. et sp. n. (PI. XIII. figs. 1-4.) 

 (Half the specimen.) 



General form when entire (according to Mr. Theobald, who 

 had it cut through the shoi't axis into equal halves) a com- 

 pressed spheroid ; hence the outline of the half about to be 

 described represents a hyperbola l^x in. high, with a nearly 

 elliptical base, whose long axis is 2^ in. and the short one 

 1 vV ; so that with these dimensions and Mr. Theobald's state- 

 ment, viz. that the other half was the same in size, the 

 entire shape of the fossil may be easily assumed (PI. XIII, 

 fig. 1). 



Surface of this half remarkable for the presence of a star-like 

 radiation in relief (fig. 1, a), of which the centre is on one side 

 of the summit of the hyperbola, and thus eccentric, so that 

 its axis would pass obliquely through the base ; but whether 

 this " eccentric " position is natural or caused by the situ- 

 ation of the sectional line or other circumstances, such as 

 rock-contortion .&c., the half fossil does not enable me to 

 determine; again, the centre of the "star-like" radiation 

 is oval in its circumference, with the long axis directed 

 obliquely across the half fossil on one side of the summit, 

 and this is all that can now be stated of its position with 

 relation to the rest of the fossil when entire. This stelli- 

 form group consists of a great number of narrow lanceolate 

 segments, in relief, which, radiating from a central point, 

 vary in length and size under \^ in. long, while they 

 are shorter and more or less overlap each other about the 

 centre, as they' lie upon the convexity of the fossil, indica- 

 ting that they have been successively developed (figs. 1 and 

 3). Beyond the ends of the "segments" of this stelliform 

 portion come a great number of lozenge-shaped projections, 

 more or less in juxtaposition, which seem to represent the 

 external ends of internal " segments," and in their tessellated 

 arrangement, circumscribed by obliquely intercrossing linear 

 grooves, which separate them, simulate the surface of a fir- 

 cone (fig. Ij i). These projections are only partially scattered 

 over the surface, as they are interrupted by the presence of a 

 large quantity of foreign material (fig. 1, cc)^ which in many 

 places occupies so much of the fossil as to frequently insulate 



