ok oa 
1883.] Zoology. 660 
anything to what is already known of the anatomy and develop- 
ment of the genus through the researches of Busch, Metschni- 
koff, Mereschkowsky and others, but are published simply to call 
attention to its interesting development. This species, as already 
stated, has been taken from only one other locality. Other spe- 
cies, however, as A. composita Metsch., have been found in the 
Atlantic ocean. 
Color green and yellow, transparent and slightly phosphores- 
cent. All the above-mentioned specimens were taken wit 
Müller’s net in Narragansett bay.—/. Walter Fewkes. 
Enormous SpipEr’s Wes.—When in Franconia valley, N. H., 
last summer, my wife and myself observed a spider’s web of such 
enormous proportions that it seems worth while to put the phe- 
nomenon on record. I regret that I was so foolish as to omit, at 
the time, taking accurate measurements. The web was of the 
geometrical kind—very perfect, and stretched between two trees, 
one a small larch and the other a large sugar maple. The total 
length of the guys or supports must have been fifteen feet at least, 
while the web proper was, I should say, all of three feet in cir- 
cumference. In my desire to be within bounds I really think I 
under-estimate the dimensions. The span of threads indicated a 
| very large builder, but our utmost search failed to find this archi- 
, tect. I should greatly like to know what species probably con- 
structed this enormous trap —W. W. Bailey. 
THE STRUCTURE AND FORMATION OF THE COVERING OF THE 
