﻿part 4] PHILLIPSASTREEA HENNAHI, AND ORIONASTRJZA. 



285 



mind, in connexion with the controversy which followed, that 

 Phillips did not state that it was ' A. hennahiij but, in his 

 own words, a ' specimen from Mountain Limestone much allied to 

 Astreea hennahii.'' 



F. A. Rcemer (1843). 'Die Versteinerungen des Hartzge- 

 birges ' p. 5, pi. ii, figs. 13 a-13 b, & pi. iii, fig. 1, contributed to 

 the literature of the genus a description and figures of two species 

 allied to ' Astreea hennahii,'' both from the Devonian of the 

 neighbourhood of Grriind in the Harz, namely ' Astreea hennahii ' 

 Lonsdale? and ' Astreea parallela N.' : — 



Astreea hennahii (pi. ii, figs. 13 a & 135). — The figure indicates 

 a form differing from the type-specimen in regard to the smaller 

 size of the corallites and the apparent presence of an epitheca. It 

 suggests Phillipsastreea pentagona Groldfuss (Acervularia penta- 

 gona Groldfuss auctt.). 



Astreea parallela (pi. iii, fig. 1).— In the figui-e of this species 

 the intrathecal regions are very small and widely separated, and 

 the septa are markedly confluent. Rcemer identified this species 

 with Phillips's polished specimen, also with the coral from North 

 Wales, for which he assumed a Devonian age. 



Alcide d'Orbigny (1849), ' Note sur des Polypiers Fossiles ' 

 p. 12, introduced the generic name ' Phillipsastreea,'' and he 

 defined the genus in the following words : — 



' G-. Phillipsastrea, d'Orb., 1847. 1 Le dessin qu'en a donne M. Phillips 

 pourrait faire croire que ce sont des calices petits, a cloisons rayonnantes, 

 entourees • de cloisons costales communes. On en connait deux especes de 

 l'etage devonien. Ex. : Astrea parallela et hennahii, Phillips.' 



In the ' Prodrome de Paleontologie ' published the following 

 year (1850), on pp. 106-107, he tabulated under various generic 

 names most of the species -that I have previously mentioned,, 

 namely : — • 



Lithosti-otion hennahii (Lonsdale, pi. lviii, fig - . 3). 

 Actinocyathus hennahii (Phillips, pi. vi, fig. 16 a). 

 Phillipsastrsea parallela (Roemer, pi. iii, fig. 1). 



Phillipsastrsea hennahii (Phillips, pl.,vi, fig. 16/3, and pi. vii, fig. 15 d). 



Furthermore, he re-defined the genus Phillipsastreea thus : — 



' Ce sont des Siderastreea dont la columelle, au lieu d'etre styliforme saillante, 

 est large et divis£e en cloisons rayonnantes, comme chez les Columnastrsea.' 



H. Milne Edwards & J. Haime, in 1850, in the Introduction to 

 their monograph on ' British Fossil Corals ' pp. lxx-lxxi, defined 

 the genus Phillipsastreea, and quoted as the type-specimen 

 ' Astrea hennahi ' Lonsdale. 



Later, however (1851, ' Mon. Polypiers Fossiles ' pp. 417 & 421 ; 

 and again in 1852 & 1853, ' British Fossil Corals ' pp. 203 & 240), 

 they restricted the name Phillipsastreea to a genus represented 

 by Phillips's Carboniferous species, which they identified with 

 Martin's species JErismatolitJnts radiatus (see p. 296), and quoted 



1 This date is untenable, since the tract was not published until October 10th, 

 1849, fide C. D. Sherborn. 



