WOR MS. INTESTINA. r. Aícaris. II 
1. ASCARIS. Body round elaftic, and tape- 
ring towards each extremity: head with 
3 veficles: zaz/ obtufe or fubulate: ?n£ef- 
iznes{piral milk-white and pellucid. 
A. Infofing the Mammalia. 
* Vermicu-; Head fubulate: fkin at the fides of the body very finely 
laris. crenate or wrinkled. Afcarides. 
Mem, London Med. Sac. v. p. 230. tab. 2. 
Goexe Éingew. p: 102. tab. 5. fig. 1-3. 
Valzfn. Oper. 1. tab, 20. fg. 5—10. 
Bianch. Hifler. Morb. tab. 3. fig. 20. 
Phels. Hifl. Afar. tab. 1. fg. 3—11. t. 2. f: 1—5. 
Mull. Hif. Verm. 1, 2. p- 6. ta^, 34. 
Werner Verm. Intehin. p. 72. tab. §. fig. 133--137» 
Inhabits the inteftines of children and thin people, prin¢ipally 
in the rectum. They are generally in confiderable numbers, 
and occafion many troublefome fymptoms, creeping fometimes 
up into the ftomach. They are viviparous and about half an 
inchlong. The female has a fmall punctiform aperture a little 
below the head, through which the young are protruded. 
Head nodofe and divided into 3 veficles, in the middle of each 
of which there is an aperture, through which it receives nou- 
rifhment: Zody a little dilated in the, middle and wrink!ed at 
the fides, pellucid and angular: ra7/ gradually tapering and 
terminating in a fine point, with a {mall aperture or vent velow 
the middle of the worm. 
* Lumbri- Head flightly incurved with a tranfverfe contraction beneath 
| €6ides, it: mouth triangular 
Mem. Lond. Med. Soc. v. p. 233. tab. 1. 
Aldravand. Inf. hb, 6. p 652. fg. 45 5. 
Jobuft. Inf. p. 158. tab. 24. m. 1. 
Redi Anim. viv. tab. 10. fig. 2, 5. 
Redi Opufc. 3. tab. 10, fig. 1—4. 
Klein Herpetol. p. 63. 129, 1. fig. 3. t. 2. f. 1—7 
448. Steckb. 1776. p. 140. tab. 4. fig. 1—23. 
Daveren. Verm. p. 68. tab. 8. fg, 1, 2, 
Muller Hifl. Verm. 1,2. p. 35. 
- Blech. Eingew. p. 29. tab. 8 fig, 1—6. 
Wern. Verm. Intefl. tab. & fig 144--148., 1. 7. f. 153-159: 
Inhabits the inteftines of thin perions, generally about the z/zuz;, 
but fometimes aicends into the ftomach and creeps out of the 
mouth and -noftrils. They are frequently very numerous and 
vivacious: from 12 to 15 inches long. Bcdy tranfparent, 
light yellow with a faint line down the fide. 
Bz They 
