Genus LAMBLLASTItAEA Duncan 
1867. Lame Hast rae a , Duncan, Quart. Jour. Geol. Soc. London, 
Vol. XXIV, p. 19. 
1884. Lame Hast rae a , Duncan, Jour. Linn. Soc. Zool., Vol. XXIII, 
p • 103 • 
Type species of the Genus : Lamellastraea smythi Duncan. 
Original description: 
”The corallum is compound; the corallites are united hy 
their walls, and are more or less polygonal in transverse out- 
line; the columella is essential and lamellar; the septa are 
alternately large and small; and the reproduction is principally 
"by fissiparity through the solid columella, and occasionally hy 
marginal gemmation 
