612 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



lOuiraca] ccerulea Solater and Salvin, Nom. Av. Neotr., 1873, 27, part. 

 6.[uiraca] ccerulea Coues, Key N. Am. Birds, 2d ed., 1884, 390, part. 

 [Coccoborus] coeruleus Lichtenstein, Nom. A v. Mus. Berol., .1854, 45, part. 

 Coccoborus caruleus Audubon, Synopsis, 18.39, 132, part. 

 C.[occoborus} coeruleus Cabanis, Mus. Hein., i, 1851, 152 (Mexico). 

 Coccoborus caeruleus Hbermann, Rep. Pacific R. R. Surv., x, pt. iv, 1859, 51 



(Lower California). — Finsoh, Abh. Nat. Brem., 1870, 339 (Mazatlan). 

 Goniaphea ccerulea Sclatbe, Proc. Zool. Soc. Lend., 1856, 301 (Cordova, Vera 



Cruz).— CouES, Check List, 1873, no. 195, part; Birds N. W., 1874, 169, part.— 



Snow, Birds Kansas, 3d ed., 1875, 7 (Ellis, w. Kansas). — Sennett, Bull. U.S. 



Geol. and Geog. Surv. Terr., iv, 1878, 19 (Hidalgo, Texas; habits, etc.); v, 



1879, 392 (Lometa, Texas). 

 [Ooniaphea] cxrulea Coues, Key N. Am. Birds, 1872, 149, part. 

 Pitying lazulus Lesson, Rev. Zool., v, June 1842, 174 (San Carlos, w. Nicaragua; 



see Ridgway, Auk, xv, 1898, 322) . 

 Guiraca cserulea lazula Ridgway, Auk, xv, Oct. 1898, 322 (crit. nomencl.). — 



American Ornithologists' Union Committee, Auk, xvi, 1899, 121. 

 O.loniaphsaf-^ ccerulea var. eurhyncha Coues, Am. Nat., viii, Sept., 1874, 563 



(Mexico; U. S. Nat. Mus.). 

 G.[uiraca'] cxralea eurhyncha Ridgway, Man. N. Am. Birds, 1887, 446. 

 Guiraca cserulea eurhyncha Ridgway, Man. N. Am. Birds, 1887, 593. — American 



Ornithologists' Union Committee, Suppl. to Check List, 1889, 14; Abridged 



Check List, 1889, no 597a.— Attwater, Auk, ix, 1892, 339 (San Antonio, 



Texas, summer resid. ) . —Fisher, North Am. Fauna, no. 7, 1893, 106 (St. 



George, Utah; Bunkerville, Nevada; localities in California, etc.). — Jouy, 



Proc. U. S. Nat. Mus., xvi, 1894, 779 (Hacienda Angostura, San Luis, Potoai; 



Jalisco). — Chapman, Bull. Am. Mus. Nat. Hist., x, 1898, 28 (Jalapa, Vera 



•Cruz).— CooKE, Bull. Col. Agric. Coll.. no. 44, 1898, 167 (Pueblo, Colorado 



Springs, etc., Colorado). 



GUIRACA CiERULEA CHIAPENSIS (Nelson). 

 CHIAPAS BLUE GROSBEAK. 



Adult male unknown. Adult female precisely similar to that of 

 G. c. lazula in coloration, but decidedly larger, with the bill relatively 

 larger; length (skins), 158.75-176.53 (167.64); wing, 88.90-90.93 

 (89.92); tail, 71.12; exposed culmen, 17.78-20.07 (18.93); depth of bill 

 at base, 15.24-16.75 (15.49); tarsus, 21.59-23.11 (22.35); middle toe, 

 17.53-17.78 (17.66).' 



'Either Goniaphea or Guiraca may have been meant; doubtless the former, since 

 that generic name was used by him as late as 1874 (Birds of the North- West). 



^ Two specimens. The second is from the State of Oaxaca, but the exact locality 

 unknown. It is not typical of this form, but agrees better with the type in size of 

 bill than with any specimen in a large series of G. c. lazula, as the following will 

 show: 



Locality. 



Type of 0. chiapeneis (No. 144319, tl.S.N.M., Oco- 

 zoacuantla, Chiapas 



No.146107, U.S.N.M., Oaxaca 



Largest corresponding measurements in 29 adult 

 females of O. c. lazula 



Wing. 



88.90 

 90.93 



Tail. 



71.12 

 71.12 



Exposed 

 culmen. 



20.07 

 17.78 



Depth 

 of bill 

 at base. 



16.75 

 15.24 



14.73 



21.69 

 23.11 



23.11 



Middle 

 toe. 



17. 6S 

 17.78 



17.78 



