MAMMALIA CHEIROPTERA. 251 



obtuse but somewhat elongated apex that does not contract suddenly, like 

 an appendix vermiformis, but is of equal width with the intestine. The 

 osseous and muscular systems are described at very great length. Three 

 beautiful plates illustrate the text. In the first a coloured drawing of the 

 head of St. Tardigradus, in a fresh state, is given. 



An answer to the criticising remarks of Vrolik has been communicated 

 to the Tidjschr. voor natuurl. gesch.' xi. (1844) p. 123, by S. van der 

 Kolk. While Kolk for his former investigations could only have possessed 

 a young specimen of Stenops Javanicus, preserved too for a long time in 

 spirits of wine, he upon this occasion obtained the fresh carcase of an adult 

 animal belonging to the same species. Now in respect to the viscera, he 

 pointed out the same relations in this as in the young specimen ; viz. the 

 same intestinal constrictions, a long vermiform appendage or process, and a 

 narrowing of the small intestine towards its point of opening into the large. 

 One need only compare the two beautiful figures of Kolk, representing the 

 parts just adverted to, with those of Vrolik, to perceive at a glance the 

 striking difference between the two, and to concur then at once in Schroder's 

 opinion that Vrolik had not St. Javanicus before him, but took for this a 

 specimen of St. tardigradus. The divergence in the account is thus not to 

 be ascribed to errors of observation, but to diversity of the species. 

 These differences occur, moreover, in other points of structure; thus, 

 e. g. in St. Javanicus the left lung is divided into three, in St. tardi- 

 gradus into simply two lobes ; besides, the Liver is in the latter cleft 

 into two lobes, whereof the right oidy divides into three lobules while 

 the left is entire, but in St. Javauicus, on the contrary, the right lobe 

 falls into five, and the left into three, lobules. To the external distinctions 

 between the two species, important internal ones are also superadded. In 

 conclusion it is to be remarked that Schroder has likewise discovered the sacral 

 plexus in the blood-vessels, and that here also the venous plexus is present. 

 Templetou contributes to the 'Ami. of Nat. Hist.' xiv, p. 362, some remarks 

 concerning individuals of Stenops graciUs kept in confinement. This species 

 is very common in flat-lauds upon the east and west side of Ceylon, and 

 apart from it no other species of " Steuopidae" there occurs. 



CHEIROPTERA. 



J. v. Tschudi projects, in S. 57 of his 'Fauna Peruana,' the following 

 scheme or plan of this order. 



I. Tribus Istiopliora. II. Tribus Anistiopliora. 



A. Dentibus molaribus tulcrculatis. 

 - I. Sectio. Ch. peutadactyla. 

 (//) Indicc complete. 



