ENTALOPHORA. 137 



Family ENTALOPHORID^. 



Diagnosis. Cyclostomata Tubulata in which the zoarium is 

 erect and dendroid ; the branches consist of solid bundles of 

 zocecia. The zocecia are monomorphic, and open on all sides 

 of the stems. 



ENTALOPHORA, Lamouroux, 1821. 



SYNONYMY : 



Pustulopora (non Blainville), Busk, Hagenow, etc. 

 Pergensia, "Walford. 

 Clavisparsa, D'Orbigny. 



Diagnosis. EntalophoridaB in whi^ch the zoarium consists of 

 thin stems, each of which is composed of a small number 

 of zocecia. The peristomes are scattered irregularly. The zocecia 

 are cylindrical. 



Type species. E. cellarioides, Lamx. 



Affinities. This species was founded by Lamouroux for a species 

 from the Bathonian rocks of Normandy; his figure was so mis- 

 leading that Blainville, who next referred to the genus, regarded 

 it as probably a Hydroid zoophyte. Busk, in the second part 

 of his " Challenger Monograph," also suggested that it might be 

 a coralline. These suggestions were due to the "trumpet-shaped" 

 appearance of the zocecia in Lamouroux' s figure. Specimens from 

 the same locality leave no doubt that this is only a mis- 

 representation by the artist, for the zocecia are of the normal 

 Cyclostomatous type. 



The doubt as to the meaning of Lamouroux's figure has led to 

 unfortunate confusion in synonymy, for Busk and some other 

 authors have accepted Pustulopora, Blv., instead of Entalophora. 

 D'Orbigny, Smitt, Hincks, and Waters, however, have adopted 

 Entalophora, and I feel no doubt as to the wisdom of their 

 decision. Pustulopora,, as proposed by Blainville, is really not a 

 synonym of JEntalophora, but of Spiropora. The first species given 

 by Blainville is one figured byGoldfuss 1 as Ceriopora madreporacea. 

 The type specimen has been refigured by Hagenow, 2 but it is 



1 Petref. Germ. p. 35, pi. x. fig. 12. 2 Bryoz. Maastr. Kreideb. pi. i. fig. 8. 



