1881.] Zoilogy. 391 
of the epidermis; the latter pale yellow to light brown, with a 
greenish cast, without rays, but with very marked darker concen- 
tric lines of growth moderately distant, umbonial slope rounded ; 
posterior slope raised and broad, slightly sulcate near dorsal 
aspect, where are rather numerous small pustules ; cardinal teeth 
heavy, erect, acuminate, crenulate, double in the right valve, with 
a third accessory small tooth in the sinus of the major divisions, 
single in the left valve with sinus corresponding to the small 
third tooth of the right valve; lateral teeth rather long, thick, 
crenulate and straight; anterior cicatrices distinct, deeply im- 
pressed, that of the adductor muscle especially so and extending 
very nearly to dorsal margin; posterior adductor cicatrix rather 
deeply impressed, confluent with posterior retractor impression, 
the latter above, deep, at extreme end of lateral teeth; dorsal 
cicatrices at unequal distances along the anterior aspect of the 
cavity of the beaks, the last near the protractor pedis impression; pal- 
lial impression deep for the anterior two-thirds of its length ; cavity 
of the beaks deep and triangular ; of the shell deep and rounded ; 
nacre milky white and iridescent posteriorly. 
Observations —This is a very distinctly marked species, not 
easily confounded with any other Texan shell. It is, perhaps, 
allied to U. guadrans Lea, but differs in the following constant 
characters: It is not quadrate, has a much lighter epidermis, 
heavier teeth, the erect cardinal teeth, the tuberculated posterior 
slope, the shape and depth of the cavity of the beaks, and the 
distinct anterior cicatrices. 
he species is dedicated to the late Professor Jacob Boll, in 
memory of his services to science, he having done not a little to 
foster a love for natural history in his adopted State of Texas.— 
R. Ellsworth Call, Des Moines, Iowa. 
Note ON SUCCINEA CAMPESTRIS AND S. AUREA—A gentleman 
residing in Illinois, recently sent me a number of land and marine 
shells for determination, collected in November, 1880, in the 
vicinity of New Orleans, Louisiana, and on the main-land of 
Florida and Cedar Keys. Among the land shells collected by 
him at New Orleans, was Succinea campestris Say. In Part 1, of 
Land and Fresh Water Shells of N. A.,” published by the 
Smithsonian Institution in 1869, Mr. Binney assigns as the geo- 
graphical range of this species the States of Florida and Georgia, 
remarking that it has been “ observed as yet only” in those States. 
The specimens under consideration are, beyond doubt, campestris. 
r. Binney repeats the same remark in Vol. v of his recent “ Ter 
restrial Air-breathing Mollusks,” page 427, published in 187 8, by 
the Museum of Comparative Zoology, as Vol. 1v of its Bulletin. 
The species was sent me from Charleston, S. C., in the summer 0 
1877 These two localities will therefore extend its geographical 
limits both to the north and west. It will probably be found also 
at intermediate points in Mississippi and Alabama. 
