(ESTKIDEA. 93 



et in dorso setoso ; squamae halterum permagnce ; alee m quiete ab 

 abdomine dist antes. 



In this division only the eggs and larvae are of interest to us, 

 and indeed at present only in as far as they belong to species 

 which live upon the skin, and there form boils. Nothing 

 certain is known of the occurrence of the larvae of (Estri in the 

 frontal cavities (cephenemyia ; cephalemyia) , unless the worm of 

 Fulvius Angelinus, referred to under Linguatula, was such a larva, 

 which on closer examination always appears more and more impro- 

 bable to me, even on account of the size of the larva (which 

 is said to have been as long as the middle finger). I here com- 

 mence with two cases which appear to me to be as yet the 

 most certainly proved in Europe. 



In the ' Ephemer. natur. curios./ Dec. I, Ann. 2, p. 43, 

 Schulze gives the following narration, under the title, " Vermium 

 in vivorum corporibus generatio singularis in oculorum palpebris et 

 aurium cavitatibus" Caspar Wendlandt, in Poland, extracted a 

 white worm from the eyelid of a peasant boy of two years old ; 

 it was of the size of a caterpillar, with a hardish skin. Around 

 the eye of the patient there was a considerable red swelling ; 

 the eyelids were closed, and the pain violent. But after the ex- 

 traction of the worm, neither matter nor blood flowed out of the 

 opening in which it made its appearance. (I pass over the ap- 

 pended fable of the worm's eating almonds.) Dr. Leonhardt, of 

 Miihlhausen, also saw a worble in the umbilical region of a man. 

 Unfortunately this case is not sufficiently proved. If I am not 

 mistaken, a further case is reported incidentally in Iceland by 

 Torstenson. Unfortunately I cannot find thequotation relating to it. 



In the south of America this parasite is by no means rare 

 upon man. It occurs especially upon the arms, the back, the 

 abdomen, and the scrotum. A. von Humboldt gave it the name 

 of (Eestrus humanus. In Guadaloupe and Cayenne the larva is 

 named Ver macaque, in Trinidad Ver maringouin^ in Minas 

 Geraes Berne, in New Granada Gusano del monte, and in Peru 

 Fluff lacura. 



As soon as these animals have become so far developed that 

 they are about to change into pupse, they emigrate, let themselves 

 drop upon the earth, and then pass through their next two stages. 



The surgeon will certainly seek in vain for fluctuation in the 



1 Father Guby, ' Supp. Act. Erud.,' torn, i, p. 425, in his ' Report on his Travels/ 

 describes probably this insect. 



