362 
Mr. P. W. Bassett- Smith on 
Stylophora pistillata , Esper, sp. 
1797. Madrepora pistillata, Esper, Madre. pi. lx. 
A single fragment doubtfully belonging to this species. 
Tizard Bank, 7 fath. 
Stylophora (?) Ehrenbergi , E. & H. 
1859. Stylophora Ehrenbergi, E. & H., Ann. des Sci. Nat. 3 e s6r. t. xiii. 
p. 105. 
A small fragment was obtained which apparently belongs 
to this species. It is doubtful, however, whether the form 
can properly be retained in the genus Stylophora , since there 
is apparently no coenenchyma and in character the septa much 
resemble those of an Astr&an coral. 
Tizard Bank, 3 fath. 
Stylophora Guentheri ) sp. n. 
Corallum incrusting, growing in thin successive layers over 
foreign objects; upper surface uneven, with nodose projec- 
tions. Base with w r rinkled epitheca formed of delicate con- 
centric lines. The layers from 1 to 3*5 millim. in thickness. 
Calices circular, without regular arrangement, not projecting, 
but on a level with the general surface ; no definite lip deve- 
loped. The calices from *8 to 1 millim. in diameter, from *3 
to 1 millim. apart, usually four in 5 millim., rarely five in 
this distance. The septa delicate, six small as well as the 
six large can be recognized, the free edges markedly dentate. 
Columella styliform, prominent, reaching nearly to the level 
of the calice. Interspaces between the calices thickly beset 
with minute blunt spines. In places fine lines can be seen in 
the interspaces, marking polygonal outlines of the corallite. 
Occasionally there is a small papilla-like prominence on one 
side of a calice apparently connected with one of the large 
septa ; but this character does not appear to be general. 
This species is characterized by its incrusting mode of 
growth, the small size and insert character of the calices, and 
the strongly dentate septa. Two specimens were obtained, 
one (alive) from a depth of 32 fath., the other (dead) from a 
depth of 22 fathoms. 
Macclesfield Bank, China Seas, 22 and 32 fathoms. 
