580 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [VolY. 



1846. Lafresnaye, F. de. Essai cl'une nionographie du geure Todirostre de Lesson 



(Traits d'ornit.). <!^Bevite Zoologique, ix, 1846, pp. 360-365. 



13 esp. ; Todirostrum flavifrons, T. plumbeiceps, 361; T. furcatum, T. palpebrosum, p. 362; 

 T. spieiferuin, T. squamcecrista, p. 363, spp. nn. 



1847. Gambel, W. [Exhibition of an albino specimen of the Wood Pewee (Musci- 



capa (i. e., Coutopus) virens.)] <^ Proc. Acad. Nat, Sci. Phila., iii, 1847, p. 278. 



1848. Lafresnaye, F. de. Snr les genres Attila, Lesson, et Dasycephala Swainson. 



<^ Revue ZooJogique, xi, 1848, pp. 39-48. 

 Attila, 6 spp. A. flammidatus, p. 47, sp. n. 



1849. [Jardine, W.] TaenioiJtera alpina, Jardine [n. sp.]. <^Jard. Contrib. Orn,, 



1349, p. 47, pi. xxi. 



1850. Strickland, H. E. Elteuia linteata, Strickland [sp. n.]. <^Jard. Contrib. 



Orn., 1850, p. 121, pi. Ixiii. 



1851. Lafresnaye, F. de. Snr deux nouvelles espfeces de Tyrans d'Am6rique. <^Bev. 



et Mag. de Zooh, iii, 1851, pp. 470-476. 

 Saurophagus rufipennis, p. 471 ; Scaphorhynchug mexicanus, p. 473. 



1851. ScLATER, P. L. On two new species of Birds of the genus Taenioptera. <^P.Z.S., 



xix, 1851, pp. 193, 194, pll. (Aves) xli, xlii. 

 T. erythropygia, pi. xli, T. stnaticollu, pi. xlii ; p. 193. 



1852. Lawrence, G. N. Description of a new species of Tyrannus [cassini]. <C^Ann. 



Lye. Nat. Hist. N. Y., v, 1852, pp. 39, 40, pi. iii, fig. 2. (Read June 3, 1850. ) 

 1852. Lawrence, G. N. Descriptions of New Species of Birds, of the Genera . . . Ty- 

 rannula [cinerascens, p. 121] Swainson, . . . <^Ann. Lye. Nat. Hist. N. Y., 

 V, 1852, pp. 121-123. (Read Sept. 8, 1851.) 



Other spp. here descr. are a Toxostoma and a Pleetrophanes : title is to be found in fuU in 

 N. Am. part of this Bibl. 



1852. Strickland, H. E. V.— On Two Species of Todirostrum. <^Jard. Contrib. 



Orn., 1852, pp. 41, 42, pi. Ixxxv. 

 T. granadense Hartl., 1—T. mvlticolor, sp. n. 



1853. Des Murs, O. Notice sur les Lauius pitangua et sulphuratus de Linn^. <^Bev. 



et Mag. de Zool.,\, 1853, pp. 3-8. 



L. pitangua Jj. (P. E. IVi) ^= Scaphirhynchus pitangua ^tricW.. L. sulphuratus Gm. (P. E. 

 249 et 296) = Saurophagus sulphuratus Sw. Cf. op. cit, p. 63. 



1853. Kaup, J. [J.] Uebersicht des Genus Cnipolegus, Boie. <J^. /. 0., i, 1853, pp. 

 29, 30. 

 Behandelt 5 Arten, nebst Synonymik und Artkennzeichen. Cf. j.f. O., 1859, pp. 329-337. 



1853. Lafresnaye, F. de. [Note sur I'article de M. Des Murs (R. M. Z., Jan., 1853, 

 p. 3,) sur les Lanius pitangua et sulphuratus deLinn^. ] <C,Bev. etMag.de 

 Zool.,Y, 1853, pp. 63, 64. 



1853. ScLATER, p. L. On two new species of Birds of the genus Taenioptera. <CAnn. 

 Mag. Nat. Hist., 2d ser., xii, 1853, pp. 213, 214. 

 From p. Z. S., June 10, 1851, pp. 193, 194. 



1855. ScLATER, P. L. On a New Species of the Genus Todirostrum of Lesson [T. 



nigriceps.] <P. Z. S., xxiii, 1855, pp. 66, 67, pi. (Aves) Ixxxiv. 

 "With synopsis of 5 other species. The second figure of the plate is T. spiciferum. 



1856. ScLATER, P. L. On a New Species of the Genus Todirostrum of Lesson. < Ann. 



Mag. Nat. Hist., 2d ser., xvii, 1856, p. 428. 

 From P. Z. S., March 27, 1855, pp. 66, 67. 



1857. SCLATER, P. L. On Three New Species of the genus Todirostrum. < P. Z. S., 



XXV, 1857, i)p. 82-84, pi. (Aves) cxxv. 



Todirostrum calopterum, p. 82 ; T. capitale, T. exile, p. 83. List of 16 other spp. known to 

 him, and of 6 more which rest on other good authority. 



1857. ScLATER, P. L. On Three New Species of the genus Todirostrum. <^Ann. 

 Mag. Nat. Hist., 2d ser., xx, 1857, pp. 382, 383. 

 From P. Z. S., May 12, 1857, pp. 82-84. 



