732 The American Naturalist. [August, 
of these with examples from Ribes showed no valid distinction. 
This species may be readily known by its small size (long. 3, 
lat. 2, alt. 24 mm., looking a little like L. hemisphwricum), red- 
brown color; derm with large gland-pits, frequently in pairs; 
antenn 6-jointed, 3 as long or longer than 4+5+6. The 
digitules of the claw are remarkably stout, but very little ex- 
panded at their ends. 
RECENT BOOKS AND PAMPHLETS. 
ALLEN, J. A.—Remarks on a Second Collection of Mammals from New Bruns- 
wick, and on the Rediscovery of the genus Neotoma in New York State. Extr. 
Bull. Am. Mus. Natl. Hist., Vol. VI, 1894. From the author. 
Baur, G.—Professor Alexander Agassiz on the Origin of the Fauna and Flora 
of the Galapagos Islands. Extr. Science, Vol. XIX, 1892. From the author. 
Bium, J.—Formol als Konservirerungsflussigkeit. Aus Stag über die 
Senckb. naturf. Gesell. in Frankfort a. M. 1894. From the a 
BOULENGER, G. A.—Description of a new Snake, ares pnt) found in 
Travancore. Extr. Journ. Bombay Nat. Hist. Soc., 
——On the Herpetological fauna of Palawan sd hip Extr. Ann, Mag. 
Nat. Hist. Ser. 6, Vol. XIV, 1894.——Description of a new Siluroid Fish from 
Burma. l. c. From the author. 
Bulletin Nos. 54 and 56, 1894, Massachusetts State Agric. Exper. Station. 
Bulletin Nos. 24 and 25 Iowa Agric. College Exper. Station. 1894. 
BUTLER, A. W.—Biological Survey of Indiana.——Notes on Indiana Birds. 
—— Bibliography of Indiana Mammals.——Preliminary List of Indiana Mam- 
mals. Extrs. Proceeds. Ind. Acad. Sci., 1893. From the author 
CALL, E.—A Study of the Unionidae of Arkansas, with incidental reference to 
their distribution in the Mississippi Valley. 
——A Study of the Unionidae of Arkansas, with incidental reference to their 
distribution in the Mississippi Valley. Extrs. Trans. Acad. Sci. St. Louis, Vol. 
VII, 1895. From the author. 
CARLSSON, A.—Ueber die Zahnentwicklung bei einigen Knochenfischen. Ab- 
druck aus den Zool. Jahrb. Achter Band. From the author. 
Conn, H. W.—The Biological Laboratory of the Brooklyn Institute, located 
at Cold Spring Harbor, L. I. Extr. Univ. Mag., 1894. From the author. 
Du -on A.—Hemichirotes tridactylus A. Dug. Extr. La Naturaleza, 2d Serie 
Tom 
le T.—The Range and Significance of Variation in the Human Skele- 
ton. The Shattuck Lecture, Boston, 1894. 
