No. 505] SHORTER ARTICLES AND CORRESPONDENCE 53 



were sired by 6 year old stallions 

 were sired by 7 year old stallions 

 were sired by 8 year old stallions 

 were sired by 9 year old stallions 

 were sired by 10 year old stallions 

 were sired by 11 year old stallions 



13 were sired by 13 year old stallions 



8 were sired by 14 year old stallions 



9 were sired by 15 year old stallions 



6 were sired by 17 year old stallions 



1 was sired by 18 year old stallion 

 4 were sired by ^9 year old stallions 



were sired by 21 year old stallions 

 6 were sired by 22 year old stallions 



2 were sired by 23 year old stallions 



Taking 9.43 years as the average age of sires of average horses 

 and substituting 14 by 9.41 years as the average age of sires 

 of 2.10 trotting horses, it is evident that the records do not 

 reveal any superiority of the old sire over the younger one. 



F. R. Marshall. 



THE OCCURRENCE OF BATRACHOCEPS ATTENUATUS 

 AND AUTODAX LUGUBRIS IN SOUTHERN 

 CALIFORNIA 



Recently the salamander Autodax lugubris has been found 

 near Los Angeles, Cal. 1 So far as I know, until this animal 

 was reported no salamanders were known to live in southern 

 California out from the mountains, although in the mountains 

 and canons of the foothills here and there as far as San Diego, 

 another characteristic Pacific-coast salamander, Diemyctylus 



1 Miller, L. H., Am. Nat., Vol. XL, pp. 741-742. 



