138 TRANSACTIONS OF THE WAGNER FREE 



to recognize the species from these descriptions ; there are no measure- 

 ments, and they have not been figured. One of these, the Astyris communis 

 of Conrad, which I have identified by specimens named by him, is probably 

 the forerunner of A. profundi in the Miocene. This form was identified by 

 Prof Whitfield from the collections made by Capt. Frank Burns, of the U. S. 

 Geological Survey, from the Miocene marls at Shiloh, New Jersey, and vicinity. 

 The specimens from the Miocene of St. Mary's River, Maryland, and York- 

 town, Va., are larger and better preserved, but differ only in size, which is 

 rarely a specific character in this family. These forms, beside being larger 

 than A. profundi, differ from it by having the whorl with a narrow, flat edge at 

 right angles to the suture, which turriculates the whorls ; the margin of the 

 suture in A. profimdi being smoothly and closely appressed. In A. communis 

 the spire is less evenly acute, the pillar is more concave, the last whorl a little 

 stouter proportionately, and the mouth somewhat wider on the average. 

 Another species of Astyris found in the New Jersey marls is of the same 

 general type as A. communis, but considerably more elevated and slender ; it 

 has been named A. levis by Prof Whitfield. 



A. covwrnnis, in some specimens, shows distinct traces of narrow color- 

 bands extending across the whorls in a direction nearly parallel with the axis 

 of the shell and slightly flexuous. 



Astyris fusiformis Orbigny. 

 Colombella fusiforviis Orbigny, Moll. Cuba, II., p. 136, pi. 21, figs. 25, 27, 1845. 

 Astyris fusiforinis Dall, Blake Gastr., p. 191, 1889. 



Pliocene marls of the Caloosahatchie and Shell Creek. Recent on the 

 shores of South Florida and the eastern Antilles. 



This species is not very common in the marls, but perfectly characteristic 

 when found. 



Astyris multilineata Dall. 

 A. multilineata Dall, Blake Gastr., p. 190, 1889. 



Rare in the Pliocene marls of the Caloosahatchie. Recent off the eastern 

 coast of the United States, south from Chesapeake Bay, in 9-200 fathoms. 



The specimens have, of course, lost the color-bands so characteristic of 

 the recent shell, but appear otherwise to agree perfectly with it. 



Subgenus ^sopus Gould. 

 JEsopus Stearnsii Tryon. 



Nitideltafilosa Stearns (1873). Not ^Sio/«i 75/0 j«.r Angas (1867). 

 Seminella Stearnsii Tryon, Moll. Conch, v. p. 179, 1882. 

 JEsopus Stearnsii Dall, Blake Gastr., p. 194, pi. 29, fig. 5. 



In the Pliocene marls of the Caloosahatchie and living on the east coast 

 of the United States from North Carolina to Florida. 



