316 Mr Yarrell's Notes on Comparative Anatomy. 



in the internal appearance of individuals of the same species. Where these 

 occur, the accurate observations of different persons, or of the same 

 person on different subjects, will afford a series of data on which the philo- 

 sophick naturalist may found his more comprehensive inferences ; an 

 advantage, similar to that which the investigator of species derives from 

 the comparison of various individuals of the same reputed species. By 

 the publication of such intelligence it will also appear that the Zoological 

 Society is not neglectful of the many advantages placed in its hands, 

 nor backward in diffusing the knowledge of them to the publick. 



I cannot conclude this short preface to the following notes, without 

 acknowledging how much the Society is indebted to the liberality of Mr. 

 Yarrell, in devoting so much of his valuable time to their service ; and at 

 the same time I must express my own thanks for the friendliness with 

 which he has on all occasions afforded me his instruction and assistance. 



The notes are arranged in order; the series commencing with the 

 Mammalia. This plan will also in future be observed as far as regards 

 the extracts in each number of the Journal. — N. A. V.] 



Common Otter. [Lutra vulgaris, Erxl.] 

 Length from the nose to the root of the tail 2 feet 6 inches. Sto- 

 mach consisting of a single cavity. Intestines furnished with a strong 

 muscular coat; of uniform size throughout their whole length; measur- 

 ing 11 feet 1 inch. No ccecum. Kidnies lobulated. Ureters empty- 

 ing their contents into the bladder by one common trunk about an inch 

 in length. 



Genet Paradoxure. [Paradoxurus Typns, Fred. Cuv.] 



Length from the mouth to the root of the tail 20 inches. Stomach 

 of one cavity. Length of the small intestines, 6 feet; of the ccecum, 

 1^ inch; of the coZon and rectum, 6 inches; the length of the intestinal 

 canal is to the animal as 4 to 1 ; the small intestines are to the large as 

 9tol. 



Ocelot. \^Felis Pardalis, Linn.] 



Length from the nose to the setting on of the tail 2 feet 6 inches. 

 Stomach simple. Intestinal canal uniform in size and 7 feet in length ; 



