274 EEPOET UNITED STATES GEOLOGICAL SUEVEY. 



were drawn by the late Mr. Meek, a short time before Ms death, and repre- 

 sent some of his own species, descriptions of which he had from time to 

 time given in the publications of the Survey, and which were not included 

 in his great work on the fossils of the Upper Missouri Biver country. 



Besides the species thus described by him, and here represented by 

 his own drawings, a number of the other illustrations are of his species, 

 drawn from his original types. It is expected that a careful investiga- 

 tion and identification of the remainder of his types will soon be made, 

 and drawings prepared of them for publication in subsequent reports of 

 the survey. 



All the fossils here described and figured are of Cretaceous age, but 

 for want of correct information no attempt has here been made to refer 

 them respectively to the different horizons that geologists have recog- 

 nized in that great formation in Texas, or to compare those horizons 

 with the recognized divisions of Cretaceous strata in the Northern Terri- 

 tories. 



The material, therefore, upon which this contribution is based is pre- 

 sented in a more than usually heterogeneous manner, which prevents, to 

 a great extent, such philosophical discussion as articles of this kind 

 ought to contain. But it is thought best to publish it in its present 

 form, with such explanations and discussions in connection with the 

 descriptions as the subject will warrant, with the hope of making a more 

 philosophic use of the facts here recorded at another time. 



KADIATA. 

 ACTINARIA 



Genus CAEYOPHYLLIA Lamarck. 



Caeyophyllia johannis (sp. nov.). 



Plate 6, figs. 6 a and 6 b. 



Corallum reversely conical ; sides straight or approximately so ; calyx 

 : slightly oval in outline, moderately deep ; septa from 30 to 40, the best 

 example contained in the collection showing 38 at the border of the calyx ; 

 not originating in definite cycles, but increasing in number with the 

 growth of the corallum by implantation, at var^ng distance from the 

 base, between the larger ones already established ; their edges promi- 

 nent, both within the calyx and upon the outer surface, where they form 

 the usual vertical costas, each alternating costa being a little more p rom- 

 inent than the others, especially upon the outer surface. Under a lens 

 the whole surface is seen to be covered with small, prominent granules. 

 Broken examples show the sides of the septa to be finely corrugate 

 transversely. 



Height about 6 millimeters ; longer diameter of the calyx, 5£ millime- 

 ters ; shorter diameter, 5 millimeters. 



This species very closely resembles G. granultfera Stoliczska from the 

 Cretaceous rocks of Southern India (Palseontoiogia Indica, vol. iv, part 

 iv, p. 9, pi. 1, figs. 16 and 17) ; but the septa in that species are about 

 one-quarter more numerous than in the one here described. Besides this, 

 Dr. Stoliczska's figures do not show, and his description does not men- 

 tion, the regular alternation in the prominence of the costsB which is so 

 plainly apparent in our examples. 



