180 



Prof. T. R. Jones on the 



Excepting that its dorsal border is much less arched, this 

 species resembles in many respects 31. orientaUs^ Brady, 

 " Ostracodn of the < Challenger,' " p. 42, pi. i. fig. 4. 



The several specimens diifer in detail. Fig. 3 shows the 

 best example. Some are shorter and higlier on the back 

 towards the posterior third than others (woodcut. Vine Coll. 

 LXV7). Possibly the narrow individuals were males. The 

 relative convexity also of the lateral contour differs, being 

 more median in some (as in fig. 3 b) than in others. The 

 hinder extremity often varies in outline, probably on account 

 of different states of preservation (figs. 1 and 2 are such casts). 



This fine species is named after Mr. G. R. Vine, of Shef- 

 field, who so generously gave me the valuable collection, 

 on accumulating and arranging which he had bestowed much 

 labour. 



Mr. Vine states that the finest specimens of this species 

 from the " shales over the Wenlock Lime- 



were obtained 

 stone." 



Eleven 

 specimens 



Five 

 specimens 



"Vine Coll. no. i. 



II. 



LXIV7. 

 LXV7. 



LXVII. 



{ 



Smith Coll. 65. 



Bed no. AQ. Shales over 

 Wenlock Limestone, figs. 

 1 and 2. 



Bed no. 40. Buildwas Beds. 



Buildwas Beds. Small. 



Shales over Wenlock Lime- 

 stone. Woodcut. 



Bed no. AQ. Shales over 

 Wenlock Limestone. 



Railway-cutting, side of 

 Severn, L'onbridge, fig. 3. 



2. Macrocypris elegans, sp. nov. 



(PI. V. figs. 8 a, 8 5, 8 c.) 



Proportions :— L. 22. IL 10. Th. 10. 



An elegant, subreniform, smooth, convex carapace, higher 



and more boldly rounded behind than in front, as seen in the 



profile, fig. 8 o, but equally compressed at the ends, as shown 



by the acute-oval contour, fig. 8 b. The right valve is larger 



than the left, overlapping all round. The back is elliptically 



arched, the ventral margin is sinuous, and the ends unequally 



rounded ; end view nearly round. 



The Bythocypris'^ pyrula^ J. & K., of the Mountain-lime- 

 stone (Ann. & Mag. Nat. Hist. October 1886, p. 252, pi. vi. 

 figs. 10 and 11) is not unlike this species in general appear- 

 ance. 

 Vine Coll. (one specimen) no. ill. Bed no. 40. Buildwas 



Beds. 



