ENTOZOA. 



123 



brtmchialis. 



brvnchialis (Jig. 68); it was detected by Treut- 

 ler* in the enlarged 

 \>. lilt, bronchial glands of a 



man : the length of this 

 worm is about an nidi ; 

 it is slender, subatten- 

 uated anteriorly (a), 

 and emitting the male 

 spiculum from an in- 

 curved obtuse anal ex- 

 tremity (6). 



The next Human 

 Entozoon of the Ne- 

 matoid order belongs 

 to the genus Triclio- 

 cep/ialu.1, which, like 

 t'ilaria, is character- 

 ized by an orbicular 

 mouth, but differs from 

 it in the capillary form 

 of the anterior part of 

 the body, and in the 



form of the sheath or 



preputial covering of 



the male spiculum. The species in question, 

 the Tricocfp/ialus dispar, Kud. is of small size, 

 and the male (*fig. 69) is rather less than the 

 female. It occurs most commonly in the 

 ccecum and colon, more rarely in the small 

 intestines. Occasionally it is found loose in 

 the abdominal cavity, having perforated the 

 coats of the intestine. The capillary portion 

 of this species makes about two-thirds of its 

 entire length ; it is transversely striated, and 

 contains a simple straight intestinal canal ; 

 the head (a) is acute, with a small simple 

 terminal mouth. The thick part of the body 

 is spirally convoluted on the same plane, and 

 exhibits more plainly the dilated monilifonn 

 intestine (/' ) ; it terminates in an obtuse anal 

 extremity, from the inner side of which pro- 

 ject the intromittent spiculum and its sheath 

 (c, d). The corresponding extremity in the 

 female exhibits a simple foramen, which, like 

 the outlet of a cloaca, serves the office of both 

 anus and vulva. 



With respect to the following parasite of the 

 Human body, the Spiroptera nominis, Rud., 

 considerable obscurity prevails. A poor wo- 

 man, who is still living in the workhouse of 

 the parish of St. Sepulchre, London, has been 

 subject, since the year 1806, (when she was 

 twenty-four years old,) up to the present time, 

 to retention of urine, accompanied with dis- 

 tress and pain indicative of disease of the 

 bladder. The catheter has been employed 

 from time to time during this long period to 

 draw on" the urine, and its application has 

 been, and continues occasionally to be, followed 

 by the extraction and subsequent discharge of 

 worms, or vermiform substances, with nume- 

 rniis small urannlar bodies. The latter are of 

 uniform si/.o, resembling small grains of sand : 

 those which we have examined, and which were 

 preserved in spirit, present a suhgluhular, or 

 irregularly flattened form ; but when recently 



* Opusc. Patholog. Anat. p. 10, tab. ii. fig. 3 

 7. IfamuUiria Lymplwtica. 



Fig 69. 



Trichocephalui dupar. ('Natural life. ) 



expelled, I am assured by my friend Dr. 

 Arthur Farre, that they are perfectly spherical ; 

 they consist of an external smooth, firm, dia- 

 phanous coat, including a compact mass of 

 brown and minutely granular substance. The 

 inner surface of the containing capsule pre- 

 sents, under the microscope, a regular, beau- 

 tiful, and minute reticulation, produced liy 

 depressions or cells of a hexagonal form. 

 These, therefore, we regard as ova, and not as 

 fortuitous morbid productions.* The vtTini- 



* " Ovulavcrosic dicu subglobou cum ueuulu 



