592 



MR. F. E. BEDDARD ON THE ANATOMY OF 



[May 26, 



This is met with as an exception in the Marsupialia (e. g. 

 Antechinomys); in the two Edentate American Anteaters, 

 Myrmecophaga ji(,hata and Tcmiandua tetradactyla ; in Centetes 

 (occasionally), at any rate, as representing the Insectivora ; 

 in the Elephant, so far as can be gathei'ed from Flower's 

 description *, as representative of the Ungulates. In the Odon- 

 toceti {vide Max Weber t) this arrangement of the intestine 

 would appear to be the rule ; but not in other Whales. Tarsius 

 is the only Lemurine Mammal known to form an intestine slung 

 upon a continuious mesentery %. 



In Stage II. Ave have an intestine showing only the single 

 rotation upon itself without any further specialisation, so far as 

 concerns the gut. The suspensory mesentery, however, has. 



Text-%. 121. 



Diagram of Mammalian gut, Stage II. 

 Lettering as in text-fig. 120. 



naturally divided into two, the additional one being what Klaatsch 

 terms the " ligamentum cavo-(or recto-)duodenale ." We find 

 this state of affairs in Marsupials (e. g. Dideljjhys, Macropus), in 

 Edentates (e. g. Dasypus, Orycteroptts), in Carnivora (? without 

 exception), in Lemurs (e. g. Microcehus), in Primates (? without 



* Med. Times & Gazette, loc. cit. 



t Die Siingethiere. See for a particular instance (Porpoise) Hepburn & Waterston , 

 Trans. R. See. Ed. xl. pt. ii. 1902. 

 J Klaatsch, loc. cit. 



