72 



Monkey that he was not aware of the real character of the structure 

 to which Wurmb had alluded. With respect to the structure of 

 the stomach, neither Wurmb nor M. Otto drew any general infer- 

 ences from it ; they described it as it presented itself in single species, 

 and regarded it in an isolated point of view ; it is, if I mistake not, 

 to Mr. Owen that we owe its reception as an anatomical character, 

 extant throughout the Semnopitheci. (See his paper on the subject, 

 in the Proceedings for 1833, and in the Transactions of the Zoolo- 

 gical Society.) 



This is perhaps scarcely the place in which to introduce any spe- 

 culations, but I cannot help observing that the same structure may 

 be expected in the genus Colohus, which in form is a mere repetition 

 of the genus Semnopithecus, except that the thumb of the forehands, 

 which in the latter begins to assume a rudimentary character, is in 

 the former reduced to its lowest stage of development. In both 

 genera the teeth precisely agree, and present early that worn surface 

 which is the consequence of a continued grinding rodent-like action, 

 upon the leaves and herbaceous matter which constitute the chief 

 diet of the animals. 



The statement of Wurmb respecting the stomach and laryngeal ap- 

 paratus of the Proboscis Monkey I have lately been enabled to con- 

 firm. 



Among the specimens in store brought within the last few months 

 from the Gardens to the Museum occurred an example of the Pro- 

 boscis Monkey, in brine, but in a state of decomposition which in- 

 duced me to lose no time in making such an examination as its con- 

 dition would admit, being indeed extremely anxious to ascertain 

 the relationship of this curious monkey to the other groups of 

 Indian Simiada, groups to which I have been lately directing my 

 attention. 



The specimen in question was a female, measuring iromth& vertex 

 to the ischiatic callosities one foot nine inches. 



The body was meagre and slender, and the limbs long and slim ; 

 the contour of the animal being very unlike that displayed in the 

 mounted specimen in the Museum of the Society, which gives the 

 idea of great robustness. 



The abdominal cavity had at some former period been opened 

 and the liver removed, in doing which the stomach had been cut, 

 but not so much as to spoil it entirely. In every essential point 

 this viscus is the same as in all the Semnopitheci hitherto examined. 

 It consists of a large cardiac pouch with a strong muscular band, 

 nmning as it were around it so as to divide it into two compart- 

 ments, an upper and lower, slightly corrugated into sacculi ; the car- 

 diac apex of the upper pouch projects as a distinct sacculus of an oval 

 form, and is not bifid. From this upper pouch runs a long and 

 gradually narrowing pyloric portion, corrugated into sacculi by means 

 of three muscular bands, of which one is continued from the band 

 dividing the cardiac pouch into two compartments. The elongated 

 pyloric portion sweeps around the lower cardiac pouch. 



The (esophagus enters the first compartment about four inches 



