74 General Notes. 
Trinema enchelys. Page 296, Pl. 39. 
Forms like Figs. 46 and 47 are very common in sphagnum 
water. A form like Fig. 4, with a brown chitnoid membrane, is 
quite common. In form it is somewhat like Fig. 12, but there is 
nothing like it figured. It is probably referable to this species. 
Our specimens were not active, and the pseudopodia not observed. 
ORDER HELIOZOA. 
Actinophrys sol, Ehrenberg. Page 235, Pl. 40. 
Forms like Figs. 1, 2, 3 and 4 were observed in the water of 
sphagnum swamps, and from pools along the Penobscot River 
about Orono. 
Acanthrocystis chatophora. Page 264, Pl. 43. 
Type forms observed, though more filled with green corpuscles 
than Leidy’s figures. Springs swamp, near Orono.— F. L. Harvey. 
Worms 1n Hen’s-Ecaes.—Dr. Edward Linton records ( Proceed- 
ings U.S. National Mus., 1887) the occurrence of Distomum ovatum 
in the white of a hen’s-egg from Berlin, Wise. ‘The occurrence 
of this parasite in the eggs of fowls, while not common, is not 
difficult to account for. Its favorite place of lodgment in its host 
is in the bursa of Fabricius. An individual may occasionally 
penetrate one of the passages which communicate with the cloaca. 
It is well known that such excursions are sometimes made by this 
parasite into the oviduct. If it should penetrate beyond the shell- 
forming glands when an ovum is in transitu, it would not be an 
improbable thing if the parasite should find itself enveloped in the 
glairy albumen which is being exuded there.” 
In this connection we may refer those interested to a recent arti- 
cle on two cases of enclosure of nematodes in hen’s-eggs which are 
discussed in Dr. Pelletan’s Journal de Micographie, xi. pp. 407 et 
512, 1887. 
Tue RELATIONS OF THE EUROPEAN AND AMERICAN HELICI- 
p#£.—Dr. Wilhelm Kobelt, at the Wiesbaden meeting uf the Con- 
gress of German Naturalists, compared the recent and fossil 
European Helices with those of America. He showed that while 
to-day the molluscs of Europe differed greatly from that of Central 
America, the miocene forms of the former country so resembl 
those of the Antilles and of North America that the latter might 
be regarded as descended from the former. He is even inclined to 
believe in such a genetic connection, which, contrary to that of 
mammals and plants, has gone from east to west, and claims that @ 
land-bridge between the two continents must have been north of 
the Sahara, because of the absence of African types in America. 
