220 



QUADRUMANA. 



approximation of the cardia and pylorus, seem 

 proper to all the Lemurince, and already pre- 



Fig. 140. 



Superior limb of Stenops tardigradu*. 

 (After W. Vrolik) 



sents its first appearance in some Cebidce. 

 The ececum terminates in an elongated, conic 

 point, which ought not to be confounded with 

 the vermiform appendix of the ccecuro in man 



and in the apes. The ececum is very large, and 

 the colon has also a great extension. The colon 

 is in general larger in the Lemurines than in the 

 SimwB. It is said by CUVIER to want cells. In 

 Lemur murinus it is short and ample. DUVER- 

 NOY and SCHRODER VAN DER KOLK describe 

 alternating constrictions and expansions in 

 the intestinal canal of Stenops, which, how- 

 ever, I did not find in the three Loris 1 had 

 the opportunity of dissecting. 



About the organs of voice and respiration 

 I have, first, to mention the complete osseous 

 disposition of the laryngeal cartilages ; se- 

 condly, their small development ; and thirdly, 

 the bifurcated disposition of the epiglottis. All 

 these points are proofs of imperfection, by 

 which may also be explained the total want of 

 voice in Stenops. The hyoid bone is different 

 from the hyoid bone in the monkeys, and ap- 

 proaches to that of the inferior Mammalia. Its 

 body is a transverse arch, slender, and united 

 at the two extremities with the two pairs of 

 horns. The anterior horns are composed of 

 two distinct bones, of which the first is broad 

 and flat, the second long and slender. The 

 thyroid or posterior horns are broad and flat, 

 and melting away with the basis of the bone, 

 while the anterior have a free articulation. 

 The hyoid with its horns has the form of a 

 transversely inclined X, viz. X- 



In the organs of generation, the narrowness 

 and convoluted disposition of the Fallopian 

 tubes, the length of the vagina, and especially 



fig. 141. 



Female external organs of generation of Stenop 

 tardigradut. (After W. Vrolik.) 



