







134 SILURIAN. 
Cae Beterenca 2 McOor's Names and References; Observations, &c. Numbers and Localities. 
Drawers. Synopsis: and Figures of Genera. 
Fi orbesia, p. 174. Proetus latifrons, McCoy. (Mem. Geol. Surv. 
Vol. 1. pt. 1, t. 6, fig. 1.) 
FC Proetus Fletcheri, Salter. A broader species | a. 825, good, a. 828, 
in all parts, more like P. Ryckholti, than | Dudley, F.C. 
P. latifrons, McCoy. 
FC Proetus Stokesii, Murch. (Siluria, 2nd ed. pl. | a. 899, a. 900, good, long 
17, fig. 7). Related to the Cyphaspis by its | head spines, a. 901, a. 902, 
small glabella and strong basal lobes. interior, Dudley, F. C. 
Acidaspis, Murchison (Odontopleura, Emmrich, 
a little later in the same year). A curious 
genus allied to Lichas. The lobes of the 
glabella are scarcely separated from the 
cheeks. Spines ornament every part, differ- 
ing according to species. 
FC Acidaspis coronatus, Salter (Quart. Journ. Geol. | a. 658, a. 697, Dudley; 
Ged Soc. Vol. x1. p. 210). The free cheeks | b.30, to b.38, good (figured 
have very thick sinuous head-angles. by Salter), probably from 
the Lower Ludlow Shale, 
Dudley, F.C. 
FC p. 152. Acidaspis Brightii, Murch. (Siluria, 2nd ed. | a. 974, a. 975, figured in 
Foss. 64, fig. 8, pl. 18, figs. 7, 8). Fletcher; a. 976, young, 
good; Dudley, F.C. 
Acidaspis dama, Fletcher and Salter (Morris, 
Catal. Brit. Foss. 2nd ed. p. 99). 
FC Acidaspis crenatus, Emmrich (Neus Jahrb. | a. 966, good; Dudley, F.C. 
1845, p. 44. Ceraurus, Loven, Ofvers Kon. | a. 967, cast (Gray Coll.). 
Vet. Ak. 1845, t. 1, fig. 1, Siluria, 2nd ed. 
1859, Appendix, p. 537). 
Acidaspis dumetosus, Fletcher and Salter 
(Morris, Catal. p. 99). 
FC Acidaspis quinquespinosus, Fletcher and Salter | a. 969 (with a. 968); a. 970, 
(Morris, Catal. p. 99). cast, Gray Coll.; a. 971, 
a. 972, figured; a. 973, 
seven spines; Dudley, F.C. 
FC Acidaspis Barrandii, Fletcher and Salter | a. 968, tail, in slab with 
(Morris, Catal. 2nd ed. p. 99, Siluria, 2nd ed. 
Foss. 64, fig. 9). This belongs to Trapelocera 
of Corda, a good sectional name (Siluria, 
2nd ed. Foss. 64, fig. 9). 

Acidaspis quinquespinosus; 
a. 970*—973*, figured in 
Fletcher and Salter; Dud- 
ley, F.C. 
