446 



University of California Publications. 



[Geology 



JABIRU MYGTERIA (Lichtenstein) . 



MYCTEEIA AMERICANA (AllCt.) 



This splendid stork is represented in the University collec- 

 tion by three tibial fragments and the distal end of a tarsus. 

 Only one specimen, no. 12593, is sufficiently well preserved to 

 show the minute details. For comparison, a specimen of the 

 Recent form was available through the kindness of Mr. P. A. 

 Lucas of the Brooklyn Institute of Arts and Sciences. This 

 specimen shows tarsal measurements of the maximum dimensions 

 as recorded in Coues' Key to North American Birds. 2 The 

 specimens in the University collection are all markedly smaller 

 than the Recent specimen, but there are only minor differences 

 in the structural details. 



The fragments show the following dimensions : 



Tarso-metatarsus. 



Transverse diameter through trochlea 27.3 mm. 



Least transverse diameter of shaft 9.5 



Least sagittal diameter of shaft 7.0 



Tibio-tarsus, no. 12593. Distal fragment. 



Transverse diameter of condyles 19.1 



Sagittal diameter of condyles 23.7 



There is in the collection of the Los Angeles City High 

 School a complete tarsus from the asphalt which represents this 

 species. Mr. J. Z. Gilbert of that institution kindly permitted 

 the author to measure the specimen. The length corresponds 

 perfectly with the recorded measurements of the same segment 

 in Jabiru mijcteria as described in Coues' Key. 



GRUIDAB, CRANES. 

 GRUS MINOR, n. sp. 

 Type specimen no. 12533. Distal end of left tibio-tarsus. 

 Distinguishable at once from all Recent American species by the 

 diminutive size. The following account is based upon a com- 

 parison of the type with a specimen of G. canadensis loaned by 

 the United States National Museum. 



2 Coues, E., Key to North Amer. Birds, 5th ed., vol. 2, p. 870. 



