. 
Zoology. 435 
termined species of ——_ hereafter to be described, I found it half 
an inch in length, 
tis composed of enn lamine ; a delicate lining mucous membrane 
and an atonal layer, having a whitish or reddish glandular appearance. 
A large nerve, on each side, from the subq@sophageal ganglia, is dis- 
tributed to its commencement, besides which it receives numerous 
smaller branches along its course from the same ganglia. Its arterial 
supply is derived from the cephalic branch of the aorta. 
his organ, from its situation, relative size to the degree of perfec- 
tion of she olfactory sense, as in the carnivorous Glandina TUDOR, 
&c., its structure, and nervous supply, I think, is the olfactory organ.* 
3. Description of a new species of Anser; by Grorcr N. Law- 
white line wedse! the eye; neck and fore part of the ‘iinet ack; a 
white patch on the centre of the neck intermixed with black, 
uP 
gth 224 inches: pt extent 44; bill a littie higher than broad, 
measures along the ridge 1,3; inches ; from gape 12; lower —* 14; 
larsus 24; middle toe Py outer 1; inner 14; weight 3 poun 
Ihave taken the above description and figure from an adult “famele 
Procured at Egg Harbor, N. J., in January. Since then two others 
have been obtained at the same place, one of which I have in my pos- 
Session. On dissection it proves to be a male. It agrees in markings 
With the female, but is evidently a younger bird, aCe somewhat lighter 
in the color of its eo From this I infer they become darker by 
wculss tgs wa na ge Seg SS es a ly 
* Since writing the ab I have h dan opportunity, through the kindness of 
Mr. € assin, of i enig : ecim of Helix pomatia, from Europe, in which I 
find t in in question exist ing oe ree el- depression beneath the mouth, 
og ein backwards along the podal disk for the acs of three-fourths of 
shank , as the same species has 
minutely @ i iedbeacone omide “or sea bee as iaeak; Cuvier, and others, without 
e-sal 
any reference sae 7 em cul 
