THE NAUTILUS. 93 
A NEW UNIO FROM TEXAS. 
BY BERLIN H. WRIGHT. 
U. Iheringi. sp. noy. 
Shell sub-plicate or slightly folded on the posterior slope and 
forward over the umbonal area, sub-quadrate; substance of the 
shell rather thick and uniform; beaks prominent, small, angular, 
and ornamented with three or four doubly looped and corrugated 
ridges; epidermis yellowish green to very dark red and nearly 
covered with coarse faint green rays; teeth solid, remarkably 
smooth, single in the right and double in the left valves; cicatrices 
almost confluent, smooth and well impressed ; cavity of the beak 
moderate; nacre a clear, lustrous white. 
Diam. 1, length (height) 1%, width 5 inches. 
Habitat—San Saba River, Menard Co., Texas. 
Type in National Museum. 
RemaArks.—This species was discovered by Mrs. John Alex. 
Smith, of Menardville, Texas, who found it in company with N. 
coloradoensis, Lea, houstonensis, Lea, gracilis, Bar. (?) tuberculatus, 
Bar. petrinus, Gd., pauciplicatus, Lea, speciosus, Lea, anodon- 
toides, Lea, and An. undulata, Say? Its affinities are with U. 
pliciferus, Lea and U. Mitchellii Simpson. It differs from the first 
in being less rayed, lighter epidermis, white nacre, sharper umbonal 
angle, and more produced posterior dorsal margin, and lower and 
flatter umbo. From the latter it differs in the beak sculpture, 
which in Mitchellii is coarser and not looped, sharper umbonal 
ridge, higher umbo, more generally folded, and in being rayed. 
It gives us great pleasure to name this species in honor of Dr. H. 
von [hering, Director of the Museum Paulista, Sao Paulo, Brazil, 
who has done so much valuable work in many departments ot 
Natural Science. 
To Mr. Charles T. Simpson, of the National Museum, I am in- 
debted for his comparisons with the type of his species. 
RECENT PUBLICATIONS RECEIVED. 
THE JOURNAL OF ConcHoLOoGy Vou. IX, No. 3, JuLY AND 
OcroBeR, 1898.—Additions to ‘‘ British Conchology ” (continued ) 
By J. G. Marshall; “The Marine Mollusca of Madras and the 
