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W, T. PROUT 



giving the appearance of a fine canal. About the junction of the 

 anterior fifth with the posterior four fifths, tliere is a clear spot 

 Iree from granules, evidently the V shaped spot of Manson. I could 

 not however satisfy myself as to this particular shape. 



The embryo is not sheathed. 



The following stalement gives in a tabular form, the characle- 

 rislics of the embryo of this, in coinparison with those of the 

 blood Worms alrealdv known : 



It would appear tlien to resemble F. nocùurna and F. diurna in 

 several points with the exception that it is smaller and possesses 

 no sheath. 



The above description is that of a Filaria which, so far as I am 

 aware, has not hitherto been described in détail, if at ail. Making 

 allowance for shrinkage conséquent on the methodex of prepara- 

 lion^ and taking into account the geographical facts, the clinical 

 characters of the tumours, and the anatomical features of the 

 embryos, a diagnosis of the Worm named by Leuckart Filaria 

 whulus is highly probable. Whether, judging froin its superficial 

 position, this Filaria complètes its cycle by ulcération of the 

 tumour, and sheds its embryos into the outer world in the same 

 way as the Guinea-Worm does ; or Avhether the embryos gain 

 entrance to the blood, and follow the usual cycle in the Mosquito, 

 are points which require further observation. 



