190 EOCENE AND LOWER OLIGOGENE UOEAL FAUNAS. 



Geologic occurrence. — Lowei' Claibome. 



Type. — From eolleetidu of T. II. Aldrich in tlie United States National 

 Mnsenm. 



Endopachys shaleri sp. uov. 



PI. XXII, flg.s. 11 to 14. 



Sliape subeuneate, somewhat compressed, transverse section elliptical; 

 base subcorneal, usually rounded, occasionally subacute. The surface is 

 granulate, no costse. The marg-inal wings are A'ory rounded; lateral tuber- 

 cles not very much elevated, elongated. Wall rather thin, very vesiculate. 

 Septa in five cycles. Those of the fifth cycle fuse to the sides of the fourth 

 rather near the corallum wall, the fourth fuse to the third about half way 

 between the wall and columella. About 20 septa reach the columella. Sides 

 granulate. Columella vesiculate. Greater transverse diameter of calice, 

 about 12 mm.; lesser transverse diameter of calice, 6. .5 mm.; height of coral- 

 lum, 6 mm. 



Locality. — Alabama 1 



Geologic occurrence. lljOCCne . 



Types. — In the Boston Society of Natural History. 



I found this little undescribed species of Endopachys labeled "Eocene, 

 Alabama!" in the collection of the Boston Society of Natural History. I 

 have seen no other specimens of the species and can not identify its geologic 

 horizon by the (character of its matrix. I insert the description as that of a 

 doubtfully Eocene form. 



Endopachys minutum sp. nov. 

 PI. XXII, figs. 15 to 18. 



This is a curious little species, and according to strict definition does 

 not belong to the genus to which it is here referred, but it has a compressed 

 shape like Endopachys. It shows no signs of attachment, and the tertiary 

 septa of the fourth cycle fuse in front of those of the third cj^cle. 



The shape is difiicult to describe; the figures show it very well. The 

 corallum is contracted at the calice. There are sometimes indistinct costre, 

 but the whole external surface is granulate. No tubercles on the faces of 

 the corallum. Wall thin, perforate, but not very porous. The septa are 

 an-anged in four cycles; those of the fourth cycle unite in front of the third; 



