LEAST BITTERN. 607 



otherwise, that neither he nor the dog could raise one of them. We 

 have now observed several species of Herons arriving in the same 

 manner from the westward, and it seems that their stay in their roost- 

 ing places continues only for a night, as on going to the same spot on 

 the next day, none have been found. At Galveston Island, on the 26th 

 April, we saw many individuals of this species. 



In an adult male preserved in spirits, the interior of the mouth is 

 of the same structure as in the other Herons ; the tongue 1 inch 4 

 twelfths long, very slender, trigonal, tapering to a point. Width of 

 mouth 5 twelfths. CEsophagus 8 inches long, its width at the upper 

 part 1 inch 2 twelfths, gradually tapering to 8 twelfths, and within the 

 thorax enlarged to 10 twelfths. Belt of proventricular glandules i 

 inch in breadth. Stomach large, 1 inch in diameter, its tendons 3 

 twelfths in breadth, its walls extremely thin, being quite membranous. 

 The contents are three small fishes, and remains of others. Lobes of 

 the liver imequal, the right 1| inch, the left 1 inch in length ; gall- 

 bladder 8 twelfths long, 2^ twelfths in breadth. Intestine 2 feet 9^ 

 inches long, J twelfth wide in the duodenal portion, gradually dimi- 

 nishing to ^ twelfth ; coecum a small knob nearly 1 twelfth long, and 

 of the same breadth ; rectum 2^ inches long, and 2 twelfths in width ; 

 cloaca globular, | inch in diameter. It forms 20 folds. 



Trachea 6 inches long, 1 twelfth in breadth ; its rings 170, and 4 

 dimidiate. Bronchi very wide, of 12 rings. 



CANADA GOOSE. 



Anser Canadensis, Vieill. 



PLATE CCI. Vol. III. p. 1. 



Male, presented by Dr T. M. Brewer of Boston. The mouth is 

 1 inch 2 twelfths in width ; the anterior part of its roof, which is con- 

 cave, is beautifully marked with a middle tuberculated ridge, two late- 

 ral ridges of lamelliform tubercles, and between them a number of 



