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Fig. 
LOWER CARBONIFEROUS ROCKS OF ESKDALE AND LIDDESDALE. 89 
EXPLANATION OF PLATES. 
PLATE VII. 
1.—Ceratiocaris scorpioides, showing the general form. The carapace is slightly displaced, and 
exposes some of the segments which during life were covered by it. Jaws seen near anterior 
margin of carapace. Nat. size. Locality—River Esk, 4 miles south of Langholm, Dum- 
_ friesshire. 
la.—Ceratiocaris scorpioides, showing carapace slightly displaced, jaws, &c. Nat. size. Same 
locality. 
16.—Cast of jaws of fig. 1, magnified. 
1c.—Crushed jaw of fig. la, magnified. 
1d.—Tail spines of fig. la, magnified, 
le.—Magnified tail spines of another specimen of Ceratiocaris scorpioides, from the same locality. 
17.— Magnified tail spines of another specimen of Ceratiocaris scorpioides, from the same locality. 
2.—Ceratiocaris elongatus, showing all but last joint and tail spines. Carapace displaced so as to 
show some of the segments which it should cover. Jaws seen in situ. Nat. size. Same 
locality. 
2a.—Anterior portion of Ceratiocaris elongatus, showing lobe of carapace wrinkled, and notch in 
ventral surface of third segment frontal. Nat. size. Same locality. 
2b.—Ceratiocaris elongatus, showing intestinal canal, Nat. size. Same locality. 
2c.—Showing natural size of last body segment and tail spines of Ceratiocaris elongatus. 
2d.—Portion of tail spine of fig. 2c, magnified, to show ornamentation. 
2e.—Tail of new species of Ceratiocaris from the Upper Silurian (Wenlock) Rocks of Roxburgh- 
shire, for comparison of ornament with fig. 2d. 
2f,—Ornament of 2e magnified. 
PLATE VIII. 
3.—Anthrapalemon Etheridgii, magnified 2 diameters. Locality—River Esk, 4 miles south of 
Langholm, Dumfriesshire. 
3a.—Anthrapalemon Etheridgii. Nat. size. Same locality. 
3b.—Anthrapalemon Etheridgii, to show endophragmal system and gill supports, Magnified 
2 diameters. Same locality. 
3c.—Portion of carapace of Anthrapalemon Etheridgit, to show the number and nature of its. 
ridges. Nat.size. Same locality. 
3d.—Anthrapalemon Etheridgii, anterior portion of carapace, to show the antennez and their 
basal scales. Magnified about 3 diameters. Same locality. 
3e.—Magnified portion of specimen of Anthrupalemon Etheridgit, to show eyes. Magnified about. 
3 diameters. Same locality. 
VOL. XXX. PART I. O 
