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1 
HILL: GEOLOGY OF JAMAICA. 243 
base of one attached young individual measured, greater diameter, 7 mm.; 
lesser, 5 mm.; height, 3.5 mm. The base may be larger or smaller, judging 
from other imperfect young. From these data, the corallum is tall, subelavate, 
gradually enlarging upward, attached by a moderately large base, with a 
slightly elliptical cross section. Strictly speaking, there is no wall, the septa 
joined in their distal portions by numerous synaptieule, Externally the 
corallum is ornamented by very many very fine coste (the peripheral ends of 
the septa). The coste show sometimes a faint, sometimes a distinet, alterna- 
tion in size; the edges. are granulate. Between the coste are numerous delicate 
synaptieule. There is no epitheca, Septa very erowded, numerous ; 144 were 
counted on the smaller end of the type; some small ones may have been over- 
looked. There are five complete cycles, and many members of the sixth. 
There is some anastomosing among the septa, the Ist, 2d, and 3d cycles reach- 
ing the axial space, The septa are very thin, very perforate, and synapticule 
are very abundant in the peripheral portion of the corallum, making a good 
substitute for a wall. Dissepiments may be present. I was unable to deter 
mine this. On the sides of the septa, pointed granulations are quite frequent, 
There is no true columella, but a few processes from the larger septa form a 
very lax and very insignificant false one. The calice in the specimen has been 
destroyed, but it can be seen that the fossa was moderately deep. 
Locality. Solomon Mountain, west of Mint, Westmoreland Parish (R. T. 
Hill). 
Type. Museum of Comparative Zoólogy, Harvard University. 
Remarks. Every character of the coral seemed to agree with those of Lep- 
tophyllta, Fora description of the detailed characters of the genus, Pratz's 
“Ueber den Aufbau des Septalapparates einiger charakteristischer Gattungen ” 
should be consulted.* 
TURBINOSERIS, Duncan. 
Much difficulty has been experienced in trying to place generically the two 
corals next to be described. This difficulty has arisen from the insufficiency 
of the original characterization of the genus, Duncan proposed the genus 2 
for a new species called by him Turbinoseris de-fromenteli from the Lower 
3reensand, giving the following generic diagnosis: “ The corallum is simple, 
more or less turbinate, or constricted midway between the base and calice. 
The base is either broad and adherent, or small and free. 
“There is no epitheca, and the coste are distinct, 
“ There is no columella, and the septa unite literally [sic, laterally], and are 
very numerous.” 
1 Palaeontographica, 1882, Bd. XXIX. pp. 90-92. 
2 Monograph Brit. Foss. Corals, 2d series, Paleontog. Soc., Vol. for 1869 (1870), 
pp. 42, 43, Plate XV. Figs. 13-18, 
