306 Zoological Society. 
ARCTIBEUS LEUCOMUS, N. Sp. 
Grey brown, paler beneath; axilla whitish; tuft of hair on the 
side of the neck, near the shoulders, pure white; hair of back grey 
brown, with darker tips; the arms, and upper and lower surface of 
membranes near the sides, hairy ; the interfemoral membrane rather 
wide, hairy above; nose-leaf ovato-lanceolate, longer than broad, 
with a thick midrib; ears rather large, rounded; tragus oblong, 
toothed on the outer side. 
_ Inhab. Brazils. 
I received this specimen under the name of Phyllostoma brevicau- 
datum, but it cannot be of that species, as it has no appearance of. 
any tail. It agrees with P. Neuwied’s figure in having a rather wider 
interfemoral membrane than the other Arctibez, but it differs from it 
in the membranes being much more hairy, and in the absence of the 
peculiar white, epaulet-like spots. 
Length of tarsus 72!; foot 5'’; wing-bone 1” 5!"; thumb 6”. 
NYcTIPLANUS, nN. g. 
Tail none; interfemoral membrane none; head short; nose-leaf 
lanceolate, erect; lower lip entire, with a triangular group of warts 
in front; cutting teeth 2; ears lateral, separate; tragus denticu- 
lated; wings broad; index finger one-jointed, middle finger four- 
jointed; thumb elongate, lower joint short, inclosed, upper joint elon- 
gated, slender, free; feet moderate, toes equal, compressed. | 
This genus has the same kind of nose-leaf as Phyllostoma, but dif- 
fers from all the genera with that form of nose-leaf in having no 
interfemoral membrane. In this character it agrees with Diphylla 
and Stenodema; but these genera only have a scarcely elevated nose-. 
leaf. 
NyYcTIPLANUS ROTUNDATUS, Ni. Sp: 
Dark brown, beneath paler; hair yellowish brown, with dark tips ; 
of the under side paler, with pale tips; of the sides of the body dark 
blackish brown; the fore-arm above and below, and the upper part 
of the wing-membranes near the body and on the side of the legs 
hairy; nose-leaf ovate, lanceolate, about as long as broad; apex 
acuminated ; ears rather acute, naked; tragal lanceolate, acute. 
Inhab. Brazils. . 
Length of wing-bone 1" 72'"; tarsus 82/"; foot 5'’; thumb 5". 
I received this specimen under the name of Phyllostoma rotunda- 
tum, which is probably the MS. name of some German zoologist. 
3. DescriPTION oF A NEW Heron. By Jounn Govuxp, Esa, 
F.R.S. ETc. ETC. 
he 
ARDEA LEUCOPH#A, 0. Sp. 
Forehead and upper portion of the crest white; sides of the head 
and lower portion of the crest deep glossy black ; neck white, washed 
with vinous, and with a series of lanceolate marks of black disposed 
alternately down the front; all the upper surface, wings and tail dark 
grey, the lanceolate feathers of the back fading into white; edge of 
