Protethmos clevei, sp. nov. 
PI. 
fig. 
Trochosmilia subcurvata, 
bar * nov . Duncan, 
Quart. Jour. 
Geol* 
Soc. London, vol. 
xxix, p. 552 
pi. xix, fig. la, lb (not fig. 1). Hot 
T, subenrvata Reuss. 
The following is Duncan’s original characterization of 
the " var iety . " 
"The corallum is subturbinate, and rather sharply conical 
inferiorly: its curve is slight. 
’’The calice is widely open; and the septa are thin, long 
and crowded. There are five cycles of septa, the fifth being 
complete in some of the six systems. 
"The costae are subequal above, not very prominent, and 
faintly granular. Accretion-ridges are seen.” 
Hedescript ion of Duncan’s type for pi. xix, fig. la: 
Corallum sub turbinate , slightly curved in the plane of the 
