2l8 NEW YORK STATE MUSEUM 



the aspect of the coral in the rock is that of a Blothrophyllum. The species 

 will probably be found to pertain to some other genus than Zaphrentis. 



Phillipsastraea verneuili (M.-E. and H.) Lambe 



Phillipsastraea affinis Billings, op. cit. p. 1 1 



Phillipsastraea verneuili (Milne-Edwards and Haime) Lambe. op. cit. ^. 

 i66, pi. 14, fig. 4 



Billings's description. Corallum in the •form of lenticular masses or colonies, composed 

 of corallites of from six to eight lines in diameter, closely compacted together so that 

 the divisions between them are only obscurely distinguishable. The cups of these 

 corallites are indicated by a number of circular pits in the upper surface of the corallum. 

 They are nearly three lines in diameter and two lines in depth, their walls vertical, or 

 nearly so, a small rugose elevation in the bottom. From the margin of each of the cups, 

 about forty septal striae radiate to the division lines between the corallites. The septal 

 ridges between the striae are angular and minutely serrated or denticulated along the sides, 

 and apparently along the crests. The striae are also crossed by minute transverse thread- 

 like lines, about six in the width of one line. These characters can not be seen unless in 

 those places where the surface is perfectly preserved.. In general the rays only appear as 

 so many small ridges, somewhat rugose in aspect. 



The corallites are five, six or seven sided, and the divisions between them are indi- 

 cated either by small elevated rugose lines, or by the angle formed by the meeting of the 

 septal striae. The margins of the cups are sometimes slightly elevated above the general 

 surface, but often are even therewith. The distance between the cups is usually five or 

 six lines, sometimes seven or eight lines. . 



This species is closely allied to P. v e r n e u i 1 i (Edwards and Haime)' but has 

 somewhat longer corallites, and the margins of the cup not so much elevated. 



Locality and formation. Indian Cove, Gaspe, in the Gaspe limestone, no. 8. 



Mr Lambe identifies without reserve the type specimen of P. affinis 

 with P. verneuili. The species would seem to be rare in the Grande 

 Greve formation as it has not come to our notice. 



Favosites helderbergiae Hall 



Favosites helderbergiae Hall. N. Y. State Mus. Nat. Hist. 26th An. Rep't, 



1874. p. Ill 

 Favosites helderbergiae Hall. Palaeontology of New York. 1887. 6:8, 



pi. 4, fig. I, 2; pi. 5, fig. 1-3; pi. 6, fig. 1-8 



The common favosite of the Grande Greve strata occurs in convex 

 coralla having a diameter of 4 to 6 inches and cells of about the same size 

 and similar structure as in F. helderbergiae of New York with which 

 it is provisionally associated. Like that species it bears mural pores on the 

 lateral faces of the cells and has numerous diaphragms. This is doubtless 

 the species which Logan referred to as F. g o t h 1 a n d i c a and F. b a s a 1 1 i- 

 f ormis in the beds of his Division 8. 



Favosites helderbergiae Is the common favosite in the Helder- 

 berg strata of New York. Mr Lambe [op. cit. p. 7] inclines to the view 

 that there is no essential difference in the structure of the coralla described 



^ Polypiers Fossiles des Terrains Paleozoiques, p. 447. 



