Figs. 



2, 

 2. 



3. 



3. 



Pig. 



4. 





PLATE XXV. 



CARADOC ROCKS. 



Fig. 1. Asaphis (jigas, Dekay, variety. This is from Portlock's specimen of 



/. intermedius, from his pi. ix, fig. 5. 

 Asaphus {Cryptonymus) scutalis, Salter. 



„ „ ,, Head (Portl., pi. ix, fig. 4.) Tyrone. 



(Mus. Pract. Geology.) 

 „ „ ,, Body-rings and tail (labelled /. intermedius 



by Portlock). (Same collection.) 

 Asaphus, sp. undetermined. From the Caradoc? Rocks of Mount 



Pleasant, Carmarthen. (Mus. Geol. 

 Society.) 

 Figs. 5 — 10. Asaphus [Brachyaspis) rectifrons, Portlock. 



5. „ ,, . „ Under surface of the head, showing the 



entire epistome. Portl. I. planus, pi. viii, 

 fig. 3. Tyrone. (Mus. Pract. Geology.) 



6. „ „ ,, Side of head. Ditto. Portl., pi. ix, fig. 1 d. 



7. „ „ „ Glabella only. Ditto. lb., fig. 1 a. 



8. „ ,, ,, Body-rings and tail. Ditto. / arcuatus, 



Portl, pi. ix, fig. 2. 



9. „ „ „ Fascia of underside of tail. Ditto. lb., 



pi. ix, fig. 2. 

 10. „ „ ,, Under margin of cheek, showing the pit 



for the reception of the plem'ae. 



All these are in the Mus. Pract. Geology. 



