104 Cincinnati Society of Natural History. 



CoccYGUs ERYTHROPTHALMDS, Bp. Black-hUled Cuckoo. — Nest and 

 eggs taken. Nest was placed on top of some blackberiy bushes. 



Nyctale ACA.DICA, Bp. Sawwhct Owl. — November 17, 1878 ; May. 



Squatarola helvetica, Brehm. Black-bellied Plover. — September 

 21, 1879, male. 



^GiALiTis SEMIPALMATUS, Cab. Semipalmatcd Plover. — September 

 15, 1878, several specimens. 



Tringa bairdii, Coues, Baird's Sandpiper. — October 27, 1878. 



Calidris arenaria. 111. Sanderling. — September 15, 1878. 



Nyctiardea grisea n^via, Allen. American JSTiyht Heron. — Oc- 

 tober 2, 1879. 



Ardetta exilis. Gray. Least Bittern. — September 2, 1879. 



PoRZANA CAROLINA, Cab. Sora Rail. — November 2, 1878. 



Mergus serrator, Linn. Bed-breasted Merganser. — March 24 and 

 April, 1879. 



Sterna hirundo, Linn. Wilson's Tern. — September 9, 1878. 



Sterna porsteri, Nutt. Forstefs Tern. — May 4, 1879, six speci- 

 mens. 



Hydrochelidon LARiFORMis, Coucs. Black Tern. — August 17, 1879; 

 September 15, 1878, nine specimens. 



DESCRIPTION OF TWELVE NEW FOSSIL SPECIES, 

 AND BE 31 ARKS UPON OTHERS, 



By S. A. Miller, Esq. 



Holocystites tumidus, n. sp. 



Plate IX., fig. 1, posterior view of the lower part of the body, 

 fig. la, anterior view of the lower part of the body. 



This species is founded upon a single specimen, showing the lower 

 part of the body. The point for the columnar attachment appears 

 rudimentary or like a nipple, and not as if the column had been 

 broken off. The pores, which are so numerous in the plates of this spe- 

 cies, extend to this protuberance, and perforate it in numerous places, 

 which tends to show its rudimentary character, as we would not ex- 

 pect to find the perforations in a column. The inference is that 

 it may have had a column in its young state, for attachment to 

 some other object, and in maturity was free, preserving only the 

 rudimentary organ. 



The body expands very rapidly upon the dorsal or posterior side, 

 and but little upon the ventral or anterior side. 



