128 General Notes. [ February, 
Edwards from New Ireland). In regard to the Genus Panulirus, 
we would say that three of the four species mentioned (guttatus, 
gracilis and americanus) are East Coast species, and that there is 
no authority whatever for reporting them from the West Coast. 
The second paper gives an analytical key and notes upon 16 
species of Porcellanidea from the West Coast, nine of which are 
believed to be new. aaa armatus (Gibbes) Stm. is also 
credited to the West Coa 
In “ Notes on Cladocera,’ by E.A. Birge (Nov., 1878), we have 
almost the first systematic contribution to a knowledge of the 
American forms of this group of Crustacea. Thirty-six species 
are enumerated, of which twenty, and one variety, are new. 
new genus ( Crepidocerus) of the family Lyuceide is also pro- 
sed.— F. S. Kingsley. 
THE NEBALIAD CRUSTACEA AS Types OF A NEw OrpER.—The 
Nebaliade, represented by the existing genus Vedalia, have gener- 
ally been considered to form a family of Phyllopod Crustacea. 
Metschnikoff, who studied the embryology of Nebalia, considered 
it to be a “ Phyllopodiform Decapod.” Besides the resemblance 
to the Decapods, there is also a combination of Copepod and 
Phyllopod characteristics. The type is an instance of a general- 
ized one, and is of high antiquity, having been ushered in during 
the earliest Silurian Period, when there were, when we regard the 
relative size of most Crustacea, and especially of living ebate, 
gigantic forms. Such was Dithyrocaris, which must have been 
over a foot long, the carapace being seven inches long. The 
modern Weéala is small, about half an inch in length, with the 
body compressed, the carapace bivalved as in Limnadia, one 
of the genuine Phyllopods. There is a large rostrum overhang- 
ing the head; stalked eyes ; and, besides two pairs of antennz 
and mouth-parts, eight pairs of leaf-like, short, respiratory feet, 
which are succeeded by swimming feet. There is no metamor- 
phosis, development being direct. 
Of the fossil forms, Hymenocaris was regarded by Salter as 
“the more generalized type.” The genera Peltocaris and Dzscino- 
caris characterize the Lower Silurian Period, Ceratiocaris the 
Upper, Dictyocaris the Upper Silurian and the lowest Pe 
strata, Dithyrocaris and Argus the Carboniferous Period. 
existing north-eastern species is Webalia bipes cheese which 
occurs from Maine to Greenlan 
The Nebaliads were the forerunners of the Decapoda, aad form, 
we believe, the type of a distinct order of Crustacea, for which 
the name Phyllocarida is proposed.—A. S. Packard, Fr. 
CAMPTOLÆMUS LABRADORIUS.—The first specimen of Camptole- 
mus labradorius (pied duck) known to occur in this locality was 
taken Dec. 12, 1878. It is interesting, as it adds one more species 
to the list of birds of Chemung county, N. Y., and assists in clear- 
