584 General Notes. [September, 
lake a large healthy fish which extruded into the boat apparently 
healthy eggs as large as peas, and more were afterwards forced 
out in abundance by gentle pressure. In the young fry from last 
year’s hatching, the yolk sac was scarcely absorbed at this time.— 
E. Lewis Sturtevant, M. D., S. Framingham, Mass. 
NOTES ON AMERICAN CRUSTACEA.—Having recently been study- 
ing the Crustaceans belonging to Union College, kindly loaned 
me by Prof. H. E. Webster, I have thought best to place on 
record some of the more noticeable features of the collections. 
I hope, however, at an early day to publish a more extended 
notice. Enough specimens were found to show the identity of 
Othonia anisodon with O. aculiata (Gibbes) Stm. A new species 
of Actea (A. spinifera) occurred from Plantation Key, Fla. This 
species closely resembles A. /ursutissima (Rüppell) Dana, from 
the Indian ocean and the Red sea, and differs from all other 
American species in the character of the antero-lateral teeth, 
which closely resembles those of A. hirsutissima. Prof. Webster 
collected specimens of Panopeus of the two forms described as 
sayi and texanus, but I can find no constant character to separate 
them; the coloration of the hand and presence or absence of the 
sub-hepatic tubercle certainly are not sufficient characters. A 
comparison of the young of Hepatus decorus with H. tuberculatus 
Saussure, as suggested by Stimpson, reveals the fact that the two 
species are distinct. A new species of Lithadia (L. lacunosa), 
allied to Z. cariosa, was found at Sarasota bay, Florida.. It differs, 
however, from that species in the ornamentation of the carapace, 
which is covered with circular depressions like those on a lady's 
thimble. Among the Anomura were specimens from North 
Carolina and Florida of the curious Euceramus prelongus Stm., 
which resembles a Hippa in form, but is allied by its structure to 
the porcelain crabs. A new species of Pisosoma (P. glabra) comes 
from Key West. It differs from P. riisez in the simple not bimar- 
ginate front. Polyonyx macrochelis and Lepidops venusta were 
found at Fort Macon, N. C., adding two species to the fauna of 
that locality in addition to those mentioned in my list (Proceed- 
one, O. orientalis, in having a rostrum like that of Alpheus heter- 
ochelis, and the absence of a dorsal carina on the carapace. e 
eyes are slender and elongate, strikingly like those of Hippa. A 
peculiar interest attaches to this and certain other genera of 
Crustacea (Toseuma, Urocaris, Rhynchocyclus and Limulus) from 
the fact that the known species inhabit the eastern coasts 0 ‘the 
two continents, while the western shores have no representatives — 
of these genera. A similar fact in geographical distribution has 
been noticed in the flora. Specimens of Alpheus minus, 
