446° : Scientific Intelligence. 
The diagnoses of most of the species were published in the Revue Zoolo- 
gique for the year 1857. In that journal two new genera were described ; 
Peseudotelphusa, which Mr. de Saussure now considers identical with Po- 
tamia (Boscia); and Halopsyche, referred to Gebiens, which is now ac- 
knowledged to be Alpheus. In fact Halopsyche lutaria is closely allied 
if not identical with Alpheus heterochelis of Say. In describing new 
species it is always a great aid to their subsequent recognition, to mention 
those forms to which they most approximate in character, and if closel 
allied, to indicate the differences. But the author even when describing 
species apparently identical with previously described ones well known in 
this country, neglects to make such comparisons. 
e should scarcely have ventured upon the following criticisms were 
it not for the excellent figures which adorn t @ 
recognise several of the species with considerable certainty. The author 
has failed to apply some of the recent improvemen ience, nei- 
while more doubtful Parisian novelties of classification, as in Grapsus, 
are fully recognised. Pericera bicornis De S., seems to be very near to 
P. bicorna (Edw.) Gibbes; if distinct it should certainly receive a more 
diverse name. Lambrus crenulatus is interesting as being the first spe-’ 
cies found on the American shores, of a genus so abundantly represented 
on those of the old world. Chlorodius americanus seems to be one of 
the numerous varieties of C. foridanus Gibbes. Three new species of 
Panopeus are described, P. occidentalis, serratus, and americanus, from 
Guadeloupe, all closely allied to P. Herbstii, (with which they should 
ave been compared,) but apparently distinct. We have specimens 
P. serratus from Florida, The genus Portunus is new to our waters; 
from P, ‘oh 
margin of its epistome. Hepatus tuberculatus De S. should be compared 
with the young of H. decorus. Remipes cubensis is a good species, char- 
acterized by the marginal band of lineole uninterrupted by a longitudi- 
nal sulcus. e had almost simultaneously indicated this species as R. 
barbadensis, it being the Squilla barbadensis ovalis of Petiver. Pagurus 
cubensis De S. is probably Clibanarius sclopetarius, as the characters 
agree except in one point ;—it is said of the feet that “La premiere 
paire atteint un peu au dela du milieu du troisiéme article de la dew- 
ziéme paire.” We presume however that the author means the third 0 
those joints which project from beneath the carapax. Caridina met 
cana would be more properly referred to Atyoida, for in Caridina the 
tremity. (See M. Edwards; Hist. Nat. des Crust., pl. 255i, f. 4.) Seven 
new falemons are described, which we should have judged to be fresh- 
water species, but our author says that they, as well as P. jamaicenss 
