ENTOZOA. 415 



from the intestines and urinary bladder. The specimen sent by 

 the last-named gentleman was, however, from the alimentary tube 

 of a parrot. Next to these in frequency we find a number of mis- 

 cellaneous substances, the nature of which ought not, perhaps, to 

 have been so readily overlooked. Thus the fibro-vascular cellular 

 tissue of celery (or Striatula of authors), the carpellary segments 

 of the orange (Edinburgh University Anatomical Museum), por- 

 tions of the Ugamentum nuchce and other fragments of yellow 

 tissue, the trachsea of a bird (Physis intestinalis, Scopoli), entire 

 undigested blood-vessels, jointed barley- stalks, the beard or awn of 

 grasses, earwigs, millipedes (GeophilidoB), woodlice {Oniscidoe), 

 wood-shavings, and many other substances have been, at one time 

 or other, classed as parasites. Perhaps, the most remarkable 

 pseudelminth which has been placed in my possession is a tsenia-like 

 body which I owe to the kindness of Professor Aitken. It was 

 removed, post mortem, from the intestinal canal of a private soldier, 

 in the month of June, 1862. Neither Dr. Aitken nor Leuckart 

 (to whom I showed the specimen, and who took away a small por- 

 tion for microscopic examination) could decide what the substance 

 was, and up to the present time I have been unable to solve the 

 difl&culty. Meanwhile I may observe that it exhibits a general 

 taenioid form, is marked by numerous obliquely transverse and 

 very fine ridges, and on section displays two patent orifices in the 

 situation (curiously enough) ordinarily occupied by the great 

 lateral water-vascular canals of any ordinary tapeworm. Its 

 structure is firm ; but it is clearly neither an entozoon nor an 

 animal of any kind whatsoever.* 



Lastly, it may be well to furnish a more or less complete fist 



* Dr. Arthur Cribb has also recently sent me an account of a very singular worm- 

 like body, stated to have been voided by the mouth. Two instances occurred in the 

 same patient, who resides at St. Domingo. A diagram accompanying the description 

 represents the so-called worm to be nearly six inches in length, being abruptly truncated 

 anteriorly at the head, and sharply acuminated below. Its reported " pulpy nature," 

 and subsequent disintegration (within the phial), during a " long journey," are points 

 which sufficiently indicate its pseudelminthic character. — T. S. 0., July 5th, 1864. 



