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REPORT ON ZOOLOGY, MDCCCXLII : 
brownish-wliite ; the length of female 4'", of male 3"'. He has also 
discovered another interesting round worm in the frontal sinus and cri- 
briform bone of Miistela putorius and (ibid. p. 43), which appears 
to belong to Spiroptera, and has been furnished with the following 
diagnosis: Sp. (?) nasicola, — Capite indiscreto, ore orbiculari nudo; 
maris parte corporis posteriore recta, alis brevissimis, pene mediocri, 
cauda post alas brevissima apice aculeo armata ; feminsc cauda acuta, vix 
distincta, parum inflexa. The hinder part of the body in the male is not 
spiral ; the colour of these parasites is red ; the length of male 5-6'", of 
female 8-12'". Leuckart observed a short pointed prickle projecting 
from the posterior end of the body in the male, which he considers as an 
organ of incitement, and which, perhaps in copulation, assists in holding 
fast the female. The digestive canal is provided with a short oesopha- 
gus, narrow anteriorly, dilated posteriorly, which passes into a stomach 
and intestine ; the sexual parts are the same as in Ascaris and Strongy- 
lus ; the females are viviparous. He found, likewise, a round worm, 
agreeing with Ascaris incisa, enclosed in a peculiar transparent mem- 
brane, fastened to the abdominal fur of Sorex tetragonurus (ibid. p. 39). 
The worms were 5-9'" long, and no sexual organs could be distinguished 
in thern, which seems to confirm the opinion of Creplin, that no round 
worm, enclosed in a membrane, possesses such organs. 
Mayer (Neue Unters. aus dem Geb. der Anat. and Phys. 1842, p. 9) 
has seen, in female individuals of Oxyuris vermicularis, a very great 
number of seminal animalculse of the length of j^q'" they lay between 
the eggs, in a crooked shape, with pointed ends. 
Gluge has found the eggs of the Ascaris nigrovenosa in the lungs of 
frogs, without any trace of that entozoon in these organs (Tlnstitut. 
1842, p. 131, and Archiv. G4ner. de M4d. t. xiv. 1842, p. 364). He 
consequently believes, that these eggs were taken into the lungs in 
respiration, and looks on this phenomenon as an argument against spon- 
taneous generation. Mandl has made the same observation, and drawn 
from it the same conclusion (Froriep’s Neue Notiz. Bd. 23, p. 200) ; his 
account, in fact, agrees so exactly with that of Gluge, that one might 
suppose there was a mistake in the name of the author. 
A new case of worm-abscess, observed by Hecking at Waxweiler on 
the Rhine, is to be added to those mentioned in former reports (Preuss. 
med. Vereinsz. 1842, No. 42, p. 187). He had to poultice an in- 
flamed swelling of the navel in a girl of four years old, and when the 
tumour burst, three dead maw-worms with eggs escaped; the navel 
closed, but after two months another painful tumour occurred, which 
went on to suppuration, and again discharged some maw-worms. 
Farther observations have been made on Entozoa in the blood of the 
vertebrata. Vogt has discovered a quantity of FilariaAike worms in the 
blood-vessels of several frogs (Muller’s Arch. 1842, p. 189), as Valentin 
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