A. E. Verrill—The Bermuda Islunds; Coral Reefs. 345 
EXPLANATION OF PLATES. 
Puate XVI. Cliff, South Shore, near Hungry Bay. a, beach sand; b, b, hard 
zolian limestone, of the Walsingham formation, formerly quarried (p. 69) ; 
c, ce, Devonshire formation, marine limestone, containing fossil marine 
shells, p. 76; d, slightly consolidated eolian sands of the Paget formation 
containing fossil land shells; e, e, Paget formation; inclined beds of 
harder zolian limestone. See pp. 72, 79. 
Puate XVII. Northward continuation of the same cliffs. Lettering as in plate 
Xvi. 
Puate XVIII. Part of same cliffs, south of section on pl. xvi. Lettering the 
same, 
Puate XIX. Part of same cliff, showing “‘sand-pipes,” in section ; 1, 2, 3, 4 
penetrate to different depths. Lettering asin pl. xvi. See pp. 72, 73. 
PuaTeE XX. Same locality as pl. xix, seen from top of bank, showing the 
great number and various forms of ‘‘sand-pipes.” The rough surface is 
indurated red-clay, partly covering the upper bed of Walsingham limestone. 
See pp. 72, 172. é 
Puate XXI. Figure 1. A Walsingham cave containing sea water and marine 
fishes. See p. 85. Figure 2. Beach and sand dunes near Natural Arch. 
Tucker’s Town. The dunes are partly covered by Sccevola lobelia ; p. 154. 
PuaTteE XXII. Figure 1. Pinnacled rocks, much eroded and encrusted. Tobacco 
Bay, near St. George’s. See p. 64. Figure 2. Eroded and encrusted eolian 
limestone. South Shore. 
Puate XXIII. Figure 1. Cathedral Rocks or ‘‘ Old Church Rocks.” Somerset 
Island. See p. 63. Figure 2. Serpentine atolls or ‘‘ boilers” off South 
Shore. See p. 122. 
PuaTE XXIV. Figure 1. Sample of shell-sand, about natural size. Dredged 
in about 4 fathoms. Figure 2. Groups of small shells, etc. selected from 
shell sand to show relative abundance. Dredged in 4-6 fathoms. Figure 1. 
1. Chama macrophylla, young; 2. Arca now, occidentalis, young: 3. Ver- 
metus spiratus, young; 4-7. Various small shells; 8. Fragments of eolian 
limestone. Figure 2. 1. Rissoina bryerea ; 2. Nassa ambigua, young ; 3. 
Cerithioides; 4. Vermetus spiratus, young; 5. Marginella minuta; 6. Cecum 
termes and C. obesum,; 7. Rissoa platycephala; 8. Hsopus Stearnsii ; 9. 
Circe cerina ; 10. Cardita dominguensis ; 11. Ervilia nitens and E. concen- 
trica ; 12. Crassatella lunulata ; 18. Arca imbricata, A. reticulata, and A. 
Adamsi; all very young; 14, Foraminifera, Orbiculina, Orbitolites, etc. 
15, 16. Corallines, fragments; 17. Corals, Oculina, etc. and echinoderm 
plates ; 18. Millepora aleicornis, fragment ; 19. Bryozoa, Biflustra. 
PLate XXV. Mass of stalagmite conglomerate filled with Pwcilozonites Nelsoni, 
var. conoides, about nat. size. See p. 159. 
Puate XXVI. Fossil land snails; 1, 2. Pecilozonites bermudensis, var. zona- 
tus, nat. size; 3. P. Reinianus, var. antiquus, x2}; 4. P. Nelsoni, var. 
conoides ; 5, 6, var. callosus ; 7, 8. var. Nelsoni; nat. size. See pp. 161-165. 
Puate XXVII. Figure 1. Pecilozonites bermudensis, existing form; series to 
show variations in form and color. Figure 2. The same, fossil form (var. 
zonatus) arranged to show variations, All natural size. See pp. 164, 192. 
