132 



though the jaws be open beneath the surface. The trachea is a 

 straight simple tube ; it was found in this animal to consist of fifty 

 rings before its bifurcation, its length being 3+ inches. A little 

 below the bifurcation, on each side, was a small glandular body, 

 similar to that seen in Birds, just where the trachea enters the thorax. 

 The bifurcations were observed to run a considerable distance into 

 the substance of the lungs before they blended into it. 



"Though differing in a few minor points, the visceral anatomy of 

 this species bore, on the whole, a close resemblance to that of the 

 Croc, acutus, of which the details given by Mr. Owen are already 

 published in the ' Proceedings of the Committee of Science and 

 Correspondence' of this Society, Part I. pp. 139 and 169." 



A specimen was exhibited of the Stanley Crane, Anthropoides pa- 

 radisceus, Bechst. ; and Mr. Yarrell called the attention of the Meet- 

 ing to the conformation of its trachea, which corresponded perfectly 

 with the one figured by him in the ' Linnean Transactions.' He 

 remarked, that as the present Bird had lived for upwards of three 

 years in the Society's Menagerie, it seemed probable, from this co- 

 incidence of form, that no increase in the extent of the fold of the 

 trachea is occasioned by increasing age. 



The reading was concluded of an anatomical description, by Mr. 

 Reid, of the Patagonian Penguin, Aptenodytes Patachonica, Forst. 



" The specimen, an adult male, whose dissection forms the sub- 

 ject of the following paper, was captured at East Falkland Isle, 

 in latitude 51° 32' south, by Lieutenant Liardet, R.N., and was 

 brought to England in H.M.S. Snake, and presented by (hat gen- 

 tleman to P. C. Blackett, Esq., by whose kind permission I was al- 

 lowed to examine it in detail : the results of this dissection I now 

 beg respectfully to lay before the Society. Owing, however, to the 

 length of time which had elapsed subsequently to its capture, and 

 to the manner of its preservation (in rum), — together with a wound 

 on the inferior part of the neck, and others in the mouth, added to 

 several bruises, — part of my description will not be so perfect as 

 could be desired. 



" The bones are very hard, compact, and heavy, having no aper- 

 tures for the admission of air; but they contain, especially the bones 

 of the extremities, a thin oily marrow. Thejbramina for the trans- 

 mission of the blood-vessels of the bones are small. The periosteum 

 is thick and fibrous. 



" The cranium is short and broad, and is united into a single bone, 

 with very little appearance of suture or harmony ; superiorly it is 

 flattened ; posteriorly, towards the occiput, it is rounded; it declines 

 obliquely forwards; and when it attains the front of the orbits it is 

 suddenly truncated to meet the superior mandible. 



" The orbits are large, and separated only by membrane. Above 

 each orbit there is ajbssa, which is deeper and broader behind than 



