Cyph&siraa hya&ss Dana 
Professor Varriil has studied Dana* a types of Orfeieella hyada® 
in the collection of tbs Boston Society of natural History, and gives 
y 
tbs following description* 
\J Trans. Conn# Acad. Set*, wol. xi, pp. 104, 105, 1900* 
"Calieles circular , or nearly so, mostly 3 to 3.5 mm. in diameter, 
are scattered between the full grown ones. In the middle of the con- 
vex summit ih® enXiclss are so crowded that the walls are in contact, 
and hero they often become angular by crowding, and when not in con- 
tact their edges may not be elevated. On other parts they may be sepa- 
rated by intervals of 2 or 3 mm. or more. The walls are very thin. 
The costae are thickened and roughly minutely serrulate} they are very 
narrow and mostly confined loth® wall, never extending across the @xo- 
thecal spaces, when these occur. The surface of the exotheca is 
smooth or vesicular} in sections the exotheca Is openly vesicular. 
"Septa 20 to 24, mostly 24 In mature cal isles} 12 extend to the 
columella} those of the third cycle are also wide, but thinner, and 
most of them bead toward and join the larger ones about midway between 
the wall and columella. The septa all besom® thin and curved toward 
the columella, but thickened at ih© wall} the summits are narrowed 
and rather prominent above the walls} inner edge irregularly and rough- 
ly serrulate, ©specially distally} sides roughly granulated. Faliform 
lobes small and thin. Columella usually rather small and loos©} formed 
of small twisted processes from the inner edges of the septa, but vari- 
able in sis®. 
"Thickness of the larger mass from St. Thome, about 50 mm. } diam- 
eter 125 mm. } diameter of calicle® mostly 3 to 3.5 mm,, rarely 4 mm. 
"This species is found on the Florida Beefs and throughout the 
West Indies. It has not been found at the Bermuda®. St* Thomas (coll. 
C. F. Harti , Yale Mu®.). In the Aiasr. Mumum, Mew York, the r4 is a 
large turbinate mass, 12 to 14 inches in diameter and about 10 inches 
high, from Jamaica. " 
