ARGENTINA, ASCIDIA. 155 
4—4, ARGENTINA. Spec 4. 
rarolina, (argentine,) anal fin with fifteen rays, 
See MS. P. 
9—4. ARGUNANTA. Spec. 5. 
argo, (ancient nautilus,) keel or ridge of the shell 
slightly toothed each side. 
See MS. P. 
4i—1. Ascaris. Spec. 78. 
lumbricoides, (human lumbricus, bowel-worm,) bo- 
dy long, smooth, cylindrical, tapering to both 
ends, with three protuberances at the fore end, 
and a depressed band around the body. Infests 
the human intestines; most frequently in young 
persons. From four to ten inches in length. 
vermicularis, (thread-worm,) body filiform ; fore 
end with three papille or vesicles ; whole ru- 
gose, pellucid, annular ; tail commences at an 
aperture, and is two-thirds of the whole length. 
The whole worm is about half an inch in length. 
They originate in the lower part of the alimen- 
tary canal ; but often extend up to the stomach 
and penetrate all parts adjoining the intestines. 
A person may have several thousands of them, 
and still remain for a season in tolerable health, 
Remarks. Animal oil mixed with spirits of 
turpentine, administered in small quantities, ac- 
companied with tonics, is the French practice 
in removing both species. 
See MS. P. 
9—1. Ascipi1a. Spec. 34. 
rustica, (spirting jelly,) oblong, brownish with 
flesh-coloured apertures; extremities rough, 
middle smooth. 
See MS. P. 
