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REPORT ON ZOOLOGY, MDCCCXLIl : 
Henslow has given several notices on the remarkable Vibrio tritici 
(Microscop. Journ. Lond. 1841, p. 36), which confirm the observations 
of Bauer on this worm’s tenacity of life. Henslow saw dried heaps of 
these worms come to life again in water, even when taken from ears of 
wheat of six years old. Eggs and young Vibriones, however, when once 
dried, always remain dead. The worms appear not only in wheat, but 
also in rye, oats, and barley, when these sorts of grain are sown along 
with wheat affected by Vibriones ; but they do not spread over these 
crops in the same degree as over wheat. They are killed in the grain 
by scalding with hot water, which procedure Henslow proposes as a 
remedy for the disease. 
Schiddte has observed Filaria from J of a line long in the stomach 
of Carabus clathratus and Calosoma sericeum (Genera og Species af 
Danmarks Eleutherata. Kjobenhavn, 1840-41, i. p. 82). He found 
Entozoa only twice in Dytisci, although he dissected a great number of 
them (ibid. ii. p. 412). In the one case the worm was a pretty large 
Filaria, which was found in considerable numbers in the head of a 
Dytiscus marginalis ; in the other instance, the worm, of only one line 
long, with pointed posterior end, and without distinct intestinal canal, 
belonged to no genus yet characterized. This parasite lay concealed 
under the external muscular tunic of the crop of an Acilius sulcatus. 
Gruby, who found Filaria-like worms in small sacs of the peritonasum 
of frogs, of millim. in size, also saw the eggs of Entozoa circulating 
with their blood, and in the dorsal canal (I’lnstitut. 1842, p. 239. Arch. 
Gener. de Medecine, t. xiv. 1842, p. 483, and Froriep’s Neue Notiz. Bd. 
24, p. 136). He found, besides, Ascarides in the sheaths of the primi- 
tive bundles of nerves, and even between the primitive threads of the 
latter ; they moved slowly, and were j millim. in length. They 
were surrounded in the lungs by a yellow, hard, and convex substance. 
After Gruby had injected eggs of Entozoa, mixed with serum, into the 
great muscular cutaneous vein of the frog, he saw them standing still in 
the capillary system of the organs, particularly of the lungs; but he 
could follow the development of the embryo in them. The eggs became 
surrounded by exhaled coagulable matter, which forms the yellow sub- 
stance in the lungs. 
ACANTHOCEPHALA. 
Steenstrup considers most of the Echinorhynci hitherto known as 
nurses (keimschlaiiche) (Op. ant. cit. p. Ill) ; but in this he goes too 
far, for they possess fully-developed sexual parts, and are, besides, of 
different sexes ; while the nurses, according to Steenstrup’s view, bring 
forth their brood independent of ovaries, or copulation with male organs. 
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