- guishe 
guished 
inp bing it as single without exception. 
a the figure ( S C 
Zoology. 829 
ifnot quite, at the end of the Noctuide.” Francis G. Sanborn, 
well kn as a zealous and enthusiastic collector of insects, and 
a useful museum assistant, died suddenly June 5th, aged 46, while 
on a visit to Providence, at the house of George Hunt, Esq. He 
was one of the curators of the Natural History Society of Wor- 
cester. He was an amiable, generous man, and lepidopterists 
owe much to his willingness to communicate the rarities which 
he captured. According to the researches of M. G. Carlet, the 
muscles of the abdomen of the bee are more numerous than they 
_ Were supposed to be and, with the exception of the aliform mus- 
cles, which subserve circulation, are employed in respiration and 
consequently in calorification, which is important in the bee’s 
economy. Thus the mechanism of respiration is more compli- 
cated than was before believed, since there is not only a length- 
ening and shortening of the abdomen, but an alternate approach 
and separation of its dorsal and ventral walls. M. Ch. Brong- 
mart, in his work upon the fossil insects of the coal beds of Com- 
mentry, describes a gigantic neuropter of the curious group 
of the Dictyoneura. This group contains insects which measure 
at least half a meter in length and 0.70™ or about two feet four 
inches in spread of wings. 
ZOOLOGY. 
A NEW INFUSORIAN BELONGING TO THE GENUS VorTICELLA.— 
The following heretofore undescribed infusorian occurs sparingly 
on the leaflets of Ceratophyllum in a pond near to, and often con- 
"ected with, the Delaware river at Trenton, N. 5 
Vorticella odii, sp. nov.— Body when expanded broadly campanulate, not 
S everted and equal in breadth to the entire length of the body; subspherical when 
Contracted, and anteriorly crenulated ; ciliary disc not elevated ; cuticular surface 
numerous scatter. mispherical or ovate elevations, diverse in size and 
we collected about the equatorial region into irreg:larly disposed series each 
closing a nuclear nodule ; parenchyma finely granular; contractile 
somewhat above a 
box b i 
together, of the pedicel =1,, inch. Habitat, pond water. Solitary or iew 
The characteristics by which this form may be readily distin- 
from all Vorticellæ, are the existence and structure of 
cuticular prominences and the undoubted presence of two 
_ Antractile vesicles, The latter are in contour and position as 
duality e but the writer would emphasize the fact of their 
ap > Hitherto no member of the genus has beef observe 
ŝis describi 
Fig. 1, magnified 400 diameters) is somewhat dia- 
co matic, as both cannot be brought into focus at the same 
