PLATE XXVIII. 



(Page 151. 



X 15. 



The hinder portion of a right valve. 

 East Kilbride. (Page 151.) 

 Posterior fragment of a left- 



" (Page 152.) 



Fig. 1 a. — Dithyrocaris testudinea, Seoul er. A perfect right- 

 hand valve, with its dorsal crest, 

 marked D. East Kilbride. 



Fig. 1 b. — Part of the dorsal crest. 



Fig. 2. — D. testudinea, Scouler. 

 X 2\. Neilson Collection, marked C. 



Fig. 3 (?. — D. testadinea, Scouler. 

 hand valve. X 3. Neilson Collection, marked E. East Kilbride. 



Fig. 3 b. — Ornament of the mesolateral ridge. X 30. 



Fig. 4. — D. testudinea, Scouler. Left valve, deformed by pressure. X 2|-. 

 Mus. Geol. Surv. Scotl., F ff, No. 10. Lickprivick, two miles south-west of 

 East Kilbride. (Page 152.) 



Fig. 5 a. — D. testudinea, Scouler. Natural impression of the -v 

 outside of the two valves of an open carapace, together with a part 

 of the inturned ventral edge. Mus. Sc. Art Edin., No. 10. East 

 Kilbride. 



Fig. 5 b. — Part of the ornament of the valve as seen in the 

 impression near the ventral margin, and the straight-lined sculpture 

 of the inturned edge. X 10. 



Fig. 5 c. — Part of the ornament of the valve (imperfect), giving 

 casts of small pits, x 50. 



. (Page 152.) 



