BIHANG TILL K. SV. VET.-AKAI). HANDL. BAND 28. AFD. IV. X:n S. 29 



of rather larg-e dark beau-like seeds and a piece of some plant 

 containing a lot of crystals of oxalate. Among the contents 

 of the colon the same leaflets were found in great number, 

 niore transparent-looking when put under the mieroseope, but 

 othemvise exteriorly unchauged and with the cellulär strue- 

 ture not at all broken. The same beans were also found, 

 Avhen unbroken quite undamaged, but when the shell or epi- 

 derm was broken it was empty. Twigs of plants and other 

 coarser struetures seem quite undigested. The main mäss of 

 the brownish colon-contents consisted, however, of more or 

 less decomposed vegetable matter in which pieces of epiderni 

 and other parts of more resistant nature remained recogni- 

 zable. The digestion seems consequently to be rather incom- 

 plete, so that leaves etc. which are not torn when pieked and 

 swallowed are in a satisfactory manner protected by the epi- 

 derm although the contents of the cellules niay be affected 

 by the digestive juices and more or less digested. Leaves 

 that have been torn when taken and swallowed are a priori 

 more apt to become decomposed and digested. The colon has 

 become a good deal eniarged for the purpose of being able to 

 keep a considerable quantity of food during the act of de- 

 composition and digestion, but as there are no valves or other 

 apparatus to hinder the progress of the food and this intes- 

 tinal tract is straight, the loss of food constituents must be 

 rather considerable. 



A Cnemido])horus scxlineatus (distance from snout to vent 

 60 mm.) showed the same general arrangement of the intesti- 

 nal canal. The small intestine measured about 54 mm. in 

 length, the large one about 25 mm. This lizard seems to be 

 chiefly insectivorous although some pieces of vegetable origin 

 were found in its large intestine. 



The genus Callopistes is said hy Cope to possess a short 

 and wide colon but no coocum. 



Anieiva ameiva (L.). 



Distance from snout to vent 107 mm. 



The stomach extends as a wide straight säck on the left 

 side to the inguinal region where it makes a short curvature 

 forward. The small intestine is when distended rather wide 

 and thinwalled, its lenffth is about 118 mm. The lar<ye in- 



