Genu® CYPHASTBEA Milno-Idwards and Halm® 
1846* Orb 1c ©11a. Dana (part) Zooph. Wilkes Expl. Bxped . , p, 
1848. Solenaatrsa Milne-Edwarda and Haim®, Gomptes Band. Acad . Paris, 
w , rr -rr^t-r -w.^ p, 494, 
1848. Cyphaatrsa Mllne-Edw&rds and Haim®, Comptaa Rand. Acad. Paris, 
£ t. Xkvii; p. 494. 
1857. Cyphastraea. Mllae-Edwarda and Haim®, Hist, nat . Corall. , t. 11, 
P« 495. 
18|4* Solenastraea Mllne-Edwards and Haim®, Hist, nat. Derail., t. 11, 
p. 495. 
1873. Cyphaatraea f&ung inger, Kcrallth. Roth. tfacr. , III Th. , p. 50. 
1885. Solenaatr&eet Duncan, Jour. Linn. Sec. Lend., Zool. , vol. xviii , M 
p. 107. 
1885. Cyphaatraea (as subgan® of Solenaatraea ) Duncan, Jour. Linn®. 
See. London, ZoTiT7~^XT*sv' i i 1 , p. 107. 
Dane's Orb ic ©11a was, a® has been stated in discussing it, a com- 
posite genus. Kluatinger was the first to combine the Cyphasirea 
and Solenastrsa of Milne -Edwards and Haim® .in on® genus, applying th® 
former n&m®, although it occurs lower down pa th© page whan th© two 
were originally described than the former. Duncan adopts Sol® past rasa 
as the generic name, and retain® Cyphaatraaa as a subgenus. If the two 
ar® to be combined w© must follow SClunss lager and apply Cyphagfcraaa . 
Cyphuafcraea is separable from Orbicella solely by having th® sur- 
face® between the calice® not ribbsd or with lamellate costa®, but orna- 
mented with spinal© s and granulations, the compactness of the sxotheea 
is variable, as is also th© p@rf oratenoe® ©r compactness of the septa. 
