RALLIDiE.] OSTEOLOGIA AVIUM. [AkAMINjE. 



Rallus, Linn. 



Longirostris, Bodd. 

 Very similar to the foregoing, but has the clavicle and coracoids much longer. 

 I have also the sternum of R. concolor, which is also similar. 



Ostygometea, Linn. 



Lateralis, Lickt. 

 So like Rallus as not to be distinguishable. 

 I have also specimens -of 0. crex and Pulchra, which are also similar. 



Aramus, Vieill. 



Scolopaccus, Gm. 



Cranium with occipital crest very indistinct ; a depression at the base of the nasal 

 bones ; orbital septum with one large foramen ; condyloid portion of the inferior max- 

 illary bent downwards, truncate at the end, and with a process pointing downwards 

 immediately below the condyle. Palatine bones consist of a flattened strip, broader at 

 the hind portion, where both edges are turned downwards, and sloped off to the inter- 

 articular bones. 



Sternum long, narrow, without any fissures on the hinder margin, which is slightly 

 indented opposite the end of the keel, which is arched on the lower edge, and also 

 scolloped out in front. Manubrial process very small. 



Pelvis similar to the rails. 



Furculum of moderate strength, without any process at the junction of the rami, 

 which are widened on their inner edge at their lower extremities, thus filling a small 

 portion of the space left between the lower part of the furculum. , 



Scapula of moderate size, pointed at the end. 



Wing-bones with the ulna longer than the humerus. 



Leg-bones. Metatarsus with a groove down the front, and a slight one at the back ; 

 calxcontinued for a short distance down it. 



Measurements. 



Tenths. 



Length of humerus 42 J 



Length of ulna 45 



Length of metacarpus . . . . . 1& 



Length of femur 31 



Length of tibia 53 



Length of metatarsus 50 



Tenths. 



Breadth of posterior margin of sternum 1 1J 



Breadth of anterior margin of sternum 14 



Depth of keel ....... 9 



Length of head 68 



Breadth of head 10 



Length of pelvis 39 



Breadth of pelvis 14 



Illustrations. 

 Skeleton, Plate XIY. K. j Palatine bones, Plate XXVII. 3. 



200 



Length of sternum 33 



