PLATE XXIV. 



(All the figures are of the natural size). 



Fig. 1. — Dithyrocaris tricomis, Scouler. Carapace and abdominal segments. 

 Mus. Geol. Surv. Scotl., F ff, No. 14 (Page 171.) 



Fig. 2. — D. Golei, Portlock. Carapace, imperfect. (The type.) Mus. Pract. 

 Geol. 6263, sa. (Page 165.) 



Fig. 3. — D. orbicularis, Portlock. Carapace, crushed. (The type.) M. P. G., 

 6266, ff. (Page 168.) 



Fig. 4.— D. Golei, Portlock. Right moiety or valve. M. P. G., 6262 (part). 

 (Overlapping fig. 1, PI. XXITI.) (Page 166.) 



Fig. 5 a. — D. tricomis, Scouler. Carapace of small individual. M. G. S. Sc, 

 F ^, No. 9. (Page 174.) 



Fig. 5 b. — The same. End view in outline. 



Fig. 6. — D. tricomis, Scouler. Folded and compressed carapace and tail. 

 (The type.) Mus. Tech. Coll. Glasgow. (Page 172.) 



Fig. 7. — D. testudinea, Scouler. Carapace, abdominal segments, and tail. 

 (The type.) Mus. Tech. Coll. Glasgow. (Page 146.) 



Fig. 8. — Ghxnocaris tenuistriata, M'Coy, sp. Right valve. (The type.) 

 Copied from M'Coy's ' Carb. Fossils Ireland,' pi. xxiii, fig. 3. 



