188 BULLETIN AO, UNrfEl) STATES NATIONAL MUSEUM. 



Tinrhis pinicola Sclater, Proc. Zool. Soc.Lond.,1859, 334, 3G2 (pine forests above 



Jalapa, Vera Cruz, Mexico; coll. P. L. Sclater); 1860, 250 (Orizaba, Vera 



Cruz); Cat. Am. Birds, 1862, 6, pi. 1 (Jalapa). — Sumichrast, Mem. Bost. 



Soc. N. H., i, 1869, 543 (alpine reg. Orizaba). — Salvin and Godman, Biol. 



Centr.-Am., Aves, i, 1879, 23 (Jalapa, Orizaba, and Moyoaj^am, Vera Cruz; 



Valley of Mexico; Oaxaca). 

 [Turdus] pinicola Gray, Hand-list, i, 1869, 258, no. 3771. — Sclatkr and Salvin, 



Nom. Av. Neotr., 1873, 2. 

 T[iir(lus] pinicola Sclater, Proc. Zool. Soc. Lond., 1864, 172 (near City of M(>xico). 

 Geocichla pinicola Seebohm, Cat. Birds. Brit. Mus., v, 1881, 179. 

 Bidgirayia pinicola STEJXEnER, Proc. U. S. Nat. Mus., v, Feb. 13, 1883, 460. — 



RiDGWAY, Proc. U. S. Nat. Mus., ix, 1886, 131 (Teziutlan, Puel^la; descr. 



female) . 

 [Ridgivayia] pinicola Sjiarpe, Hand-list, iv, 1903, 184. 



Genus SIALIA Swainson. 



Sialia Swainson, Philos. Mag., new ser., i, 1827, 369; Zool. Jnurn., iii, 1827, 173. 



(Type, S. iiilsonii Swainson , = Moiacilla sialis Linnaeus). 

 Sialis (not of Latreille, 1803) Lafresnaye, Rev. Zool., 1839, 162. (Type, Mota- 



eilla sialis Linnseus). 

 Scyrornisa Gistel, Naturgesch. des Thierreichs fiir hohere Schulen, 1848, p. 8. 



(To replace Sialin; on grounds of purism?) 



Small Tiirdida:' (length about 150-175 mm.) with long, pomted 

 wings, small bill, short tarsi, and with more or less blue in the plumage. 



Bill less than half as long as head, rather slender, compressed termi- 

 nally but broad at base, its width at frontal antiw slightly to deci- 

 dedly more than its height at same point; exposed culmen shorter 

 than outer toe with claw, straight or nearly so for about basal half (or 

 else faintly depressed or concave just anterior to nasal fossae),' 

 decurved terminally; gonys longer than mandibular rami, straight 

 or very faintly convex, ascending terminally; maxillary tomium 

 faintly concave subterminally, distinctly notched near tip of maxilla. 

 Nostril l)roadly ovoid, largely covered by short, semierect feathering 

 of frontal antiae, overhung by rather broad membrane. Rictal and 

 decumbent post-nasal bristles well developed; feathers of lores and 

 chin with small l)ristle-like points. Wing long and pointed, the 

 longest primaries exceeding longest secondaries by more than half 

 as much again as length of tarsus, sometimes more than combined 

 length of tarsus and middle toe with claw ; outermost (tenth) primary 

 very small, much shorter than primary coverts, not more (some- 

 times much less) than one-fifth as long as ninth, the latter longer 

 than sixth, sometimes (in S. mexicana and S. arctica) longest (eighth 

 and seventh longest in S. sialis) ; three primaries (eighth, seventh, 

 and sixth) with outer web sinuated. Tail much shorter than wing, 

 equal to distance from bend to end of secondaries (^S*. mexicana and 

 S. arctica) or slight shorter {S. sialis), more than three (sometimes 



a'EKvpoi, gypsum, stucco;' opvt<;, bird. (Richmcmd.) 



