2d6 McGregor, A Nezv Afntnodranius from L. California. 



TAuk 

 Ljuly 



Zy/e, ad. $ , No. looi, coll. R. C. McG., Abreojos Point, Lower California, 

 April 19, 1897. Dorsal surface olivaceous ; feathers of scapulars, inter- 

 scapulars, occiput, and crown with clove brown centres. A line of chrome 

 yellow extending from nostril over eve as in A. brya-nti. Forehead and 

 side of head, including auriculars and malar region, tinged with yellow; 

 throat white ; feathers of breast with a wash of yellow, centres with deltoid 

 clove brow spots; markings of sides and flanks lighter and more cuneate, 

 edged with wood brown; wings and tail near sepia, edges lighter. 



Wing, 6S.5 mm.; tail, 55.4 mm.; tarsus, 20.5 mm.; culmen, 13.2 mm.; 

 depth of bill at base, 7 mm. 



Hab. Salt marshes in the vicinity of Abreojos Point, Lower California. 



Mr. Ridgway has kindly compared my series of Abreojos Point 

 birds with the two examples of A. guttatus in the National 

 Museum. He has sent me the following table of average 

 measurements : 



A. halophihts. 

 A. guttatus. 



Wing. 



•63 



■525 



Tail. 



1.92 



1-875 



Exposed 

 culmen. 



0.51 

 0.44 



Depth of bill 

 at base . 



0.26 

 0.23 



0.84 

 0.825 



Middle toe. 



0.63 

 0.605 



This Sparrow was found in a salt marsh about five miles long 

 by half a mile wide. The common amphibious plant known as 

 glasswort {SaHcornia amhigud) covers the moist ground. The 

 entire marsh is cut by tide creeks, which empty into a salt lake or 

 pond lagoon. As this marsh is surrounded by ocean on one 

 side and hot desert on the others, it is probable that A. halophiliis 

 is confined to this region. 



We stopped at Abreojos Point on April 19, when I secured 

 sixteen Lagoon Sparrows, together with a nest and three eggs. 

 Individuals were very abundant, but rather shy, keeping at such 

 long range that my auxiliary barrel was useless. Most of the 

 birds were in perfect spring plumage. 



On June 17 we made a second landing at Abreojos, and 

 although we expected to secure young birds not one was taken 

 by any of the party. The adults were in worn plumage, and in 

 the oviducts of several females we found eggs on which the shell 

 was formed. 



