494 Intestinal Folds and Villi in Vertebrates 



PLATE II. 



The general forms of villi found in mammalia are given in this plate. 

 With the animals in which villi differ greatly in size or form in the dif- 

 ferent parts of the same intestine, a number of villi are figured. 



All figures X 25 diameters. 



Fig. 11. Villus of calf near middle of intestine (cylindrical). 



Fig, 12. Villus of calf near cgecum (cylindrical). 



Fig. 13. Villus of calf near pylorus (cylindrical). 



Figs. 1-1 and 15. Front and side views from villus of muskrat neai 

 the pylorus. 



Fig. 16. Villus near the caecum of muskrat's small intestine. 



Fig. 17. Villus from iniddle of cat's intestine (cylindrical). 



Fig. 18. Villus from pyloric part of cat's intestine (cylindrical). 



Fig. 19. Villus from near csecum of cat's intestine (cylindrical). 



Fig. 20. Villus or fold at pylorus of rabbit's intestine. 



Fig. 21. Villus 10 cm. from pylorus of rabbit's intestine. 



Fig. 22. Villus 110 cm. from pylorus of rabbit's intestine. 



Fig. 23. Villus 190 cm. from pylorus of rabbit's intestine. 



Fig. 21. Villus 250 cm. from pylorus of rabbit's intestine, or just 

 above the caecum. 



Fig. 25. Villus Homo at term upper intestine. 



Fig. 26. Villus Homo at term upper intestine. 



Fig. 27. Villus Homo at term lower intestine. 



Fig. 28. Villus Homo at term lower intestine. 



Fig. 29. Vitus from bat near pylorus. 



Fig. 30. Villus from bat 5 cm. from the pylorus. 



Fig. 31. Villus from bat 11 cm. from the pylorus or end of villi. 

 ,Fig. 32. Villus from shrew, middle of intestine (cylindrical). 



Fig. 33. Shrew, near middle of intestine (cylindrical). 



Fig. 34. Villus from mouse 2 cm. from pylorus. 



Fig. 35. Villus from mouse 9^ cm. from pylorus. 



Fig. 36. Villus from mouse 11 cm, from pylorus. 



Fig. 37. Villus from mouse 13 cm. from pylorus. 



Fig, 38, Villus from mouse 18 cm. from pylorus. 



Fig. 39. Villus from mouse 30 cm. from pylorus or above c;T?cum. 



Fig. 40. Villus from the intestine of horse. 



