Alcidje.] osteologia avium. [Urinje. 



Eudyptes, Vieill. 



From Vandieman's Land. 

 Precisely similar in every respect to the foregoing, except in measurements. 



Illustrations. 



Skeleton, Plate IV. L. 



Palatine bones, sternum, pelvis, and meta- 

 tarsi, Plate XXXVIII. fig. 1. 



Uria, Moshr. 



Grylle, Linn. 



Cranium. Orbital septum nearly obliterated, the space between the upper edges of the 

 orbits narrow, with a well-marked ridge down the centre. Palatine bones very similar 

 to Alca torda, but not so strong ; occipital ridge well marked and edged ; masseter 

 impression of moderate size; occipital protuberance large. 



Sternum narrow, and very long, without any xiphisternal continuation, the outer 

 edges thickened for the whole length ; the posterior margin furnished with a narrow 

 fissure on each side, central portion projecting beyond the strips of bone bounding the 

 fissures slightly indented in the centre, opposite the end of the keel, which is deep in 

 proportion to the width of the sternum, slightly arched below, and much scolloped out 

 in front, point projecting beyond the plain of the sternum ; manubrial process perpen- 

 dicularly compressed, edged anteriorly. 



Pelvis similar to A. torda. 



Ribs light, with very long styliform processes. 



Furculum very much arched, flattened laterally; a small process at the junction of 

 the rami. 



Scapula thin, narrow, pointed at the end. 



Wing-bones much flattened ; humerus much longer than the ulna. 



Leg-bones. Metatarsus slightly flattened transversely ; calx small. 



Measurements. 



Tenths. 



Length of humerus 32 



Length of ulna 24 



Length of metacarpus 14 



Length of femur 18 



Length of tibia 32 



Length of metatarsus 13 



Length of sternum 48 



Tenths. 



Breadth of posterior margin of sternum 1 1 J 



Breadth of anterior margin of sternum 14 



Depth of keel . . 10 



Length of head 36 



Breadth of head 1{I 



Length of pelvis 38 



Breadth of pelvis ...... 9 



Illustrations. 



Skeleton, Plate III. L 



Sternum, pelvis, metatarsi, and palatine 

 bones, Plate XXXIX. fig. 2. 

 2p 217 



