St. contorta -38 
Stylophora contorta (Leymerie) Duncan. 
1864. Stylophora contorta , Duncan, Quart. Jour. Geol. Soc. 
London, Vol. XXI, p. 9. 
1867, Stylophora contorta , Duncan, Quart. Jour. Geol. Soc, 
London, Vol. XXIV, p. 25, 
Duncan says, 1864, M A common coral in the Black Shale of 
Port Maria, Jamaica, It also occurs at La Palarea and in Sinde,” 
He also speaks of a variety, with thick septa, from 
Port Maria. 
In collection of the Geol. Soc. London, No. 12759, are seven 
specimens glued to a board and so labeled. Five of the specimens are 
Sty lophora and all appear to belong to the same species, one specimen 
is a Madracis, and the other Astroc oenia or Stylocoe nia. 
Corallum ramose, branches blunt, rounded on ends, nearly cir- 
cular in cross-section. Calices shallow, about 7.5 mm. in diameter, .5 
to 1 mm. apart. The surface is badly worn but apparently calicular rim 
scarcely elevated. Surface of coenenchyma granulated and short costae 
around edge of calices. Septa in two cycles, six principal and six small- 
er. 
