Vol. 58.] REFERRED TO MURCHISONIA AND PLEUROTOMARIA. 339 
Puate IX. 
Figs. 1-3. Turritoma (¢) pinguis, sp.nov. Fig. 1. Front view, x 2. Fig. 2. 
Single whorl showing lines of growth, x 3. Fig. 3. Young 
specimen, X 5. Thraive Glen. Gray Collection. Drawn from 
a photograph. : 
Fig. 4. Lophospira (?) angulocincta (Salt.), x 2. Fig. 4a. Portion of a 
whorl of another specimen, X 6. Durness. Museum of Practica] 
Geology, London. 
5. L. borealis, sp. nov. Front view, x 2. Durness. Geological Survey 
Cellection, Edinburgh Museum. 
6. L. borealis, var. (?), X 2. Durness. Geological Survey Collection, 
Edinburgh Museum. 
Figs. 7-10. LZ. yariabilis, sp. nov. Fig. 7. Side view showing sinus, x 3. 
Fig. 8. Front view, x 3. Fig. 9. Specimen crushed and embedded, 
but showing the apical whorls fairly well, x 3. Fig 10. 
Back view, X 3. Balclatchie. Gray Collection. All drawn 
from photographs. 
Fig. 11. Paleoschisma girvanense, subgen. et sp. nov. Side view, showing slit 
in outer lip, x3. Fig. 11a. Outline of portions of two whorls, x38. 
Ardmillan Braes. Gray Collection. Drawn from a photograph. 
12. Achsina (/) obscura, sp.nov. x 3. Woodland Point. Gray Col- 
lection. 
Q.J.G.8, No. 230. 
