652 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Yol.Y. 



1844. Kessler, K. Beitraege zur Natiirgeschiclite der Speclite. <^BhU. Soc. Im^p. Xat. 



Moscoii, xvii, pt. i, 1844, pp. 285-362, pll. x-siii, uebst Karte. (Aucli separatab- 

 druckt, 8°, Eiga, 1844, pp. 80, 4 Taf.) 



1'= Abtheil. Osteologie, pll. x, xi. 2^ Abth. TJeber die Beflederung der Spechte, nebst eini- 

 gen Bemerkungen iiber die Biirzeldriise. die Schleimdriiseu, und der Zimgenapparat, pll. xii, 

 xiii. 



1845. Lafresnaye, F. de. Sur la genre Picumue, de Temminck, xil. coloriees. <^ Bev. 



Zool., viii, 1845, pp. 1-10. 



A subhead of the Melanges Omithologiques. This is an important piece of monography, 

 making many criticisms and rectifications. Nine species are recognized : P. oayen7iensis (e:s. 

 Briss.), sp. n., P. temminckii {^P. exilis Temm.), sp. n., P. exilis liioht. {^=P.lichtensteinii, 

 sp. n.), P. buffonii (ex PI. Enl. 786, f. 1), sp. n., p. 6; P. pygmceus (Licht.), P. albo-squamatus 

 d'Orb. & Lafr.), P. olivaceus, Lafr., P. dnnamomius Lafr., P. d' Orhignyanus Lafr,, p. 7. 

 These species are ranged in four sections according to their coloration. 

 1845. Lafresnaye, [F.] de. Rectications [sic] et additions a la monograpliie du 

 Genre Picumnus. <^ Bev. Zool. , viii, 1845, p. 111. 

 Voir torn, cit, pp. 1-11. 

 1845. Malherbe, A. Notice sur quelqnes especes de Pics de Br^sil. <[ MSm. de hi Sog. 

 Boy. de Liege, ii, 1846, pp. 65-70. 

 Pas vue moi-m6me ; j'ai tire le titre de la Bibl. de Cams et Engehuann. 

 1845. Malherbe, A. Description de trois especes nouvelles du genre Picus, Liun^. 



< Bei'. Zool. , viii, 1845, pp. 373-377. 



P. (Leuconotopicus) stricklandi, p. 373; P. (L.) jardinii, p. 374; P. (L.) ntimidicus, p. 375. 

 1845. Malherbe, A. Description de sept especes nouvelles du genre Picus, Linn^. 



< Beo. Zool., viii, 1845, pp. 399-406. 



P. (Ghloropicus) pyrrhogaster, 399; P. (Brachypternopicus) rubropygialis, P. (Chloropicus) 

 Hrkii, p. 400; P. (C.) rufoviridis, p. 401; P. (C.) xcmthoderus, p. 402; P. (Clirysoptilopicus) 

 smithii, p. 403; P. (Brachypternopicus) ehrysonotus, p. 404. 



1847. Gambel, W. [Note on a tridactyle woodpecker from Georgia, like P. ijubescens. ] 



< Proe. Acad. Nat. Sci. Phila., iii, 1847, p. 278. 



Same as subseqiiently described by W. L. Jones under name of P. leccnitei. 



1848. Jones, W. L. Description of a new Species of Woodpecker [Picus Le Contei]. 



< Ann. Lye. Nat Hist. Neic York, iv, 1848, pp. 489, 490, pi. xvii. (Read Mar. 13, 

 1847.) 



It proved to be P. pubescens accidentally lacking one toe. Meanwhile, however, Bona- 

 parte distinguished himself by making a new genns Tridactylia for it {Cons. Zygod., 1854, 8). 



1849. Bird, W.F. W. The New Britisli Woodpecker [Picus villosus; cf. Zool. 2496] 



killed in Yorkshire. < Zoologist, vii, 1849, pp. 2527, 2.528. 

 1849. HiGGiNS, E. T. Occurrence of a sujiposed new British Woodpecker [Picus vil- 

 losus ; cf. Zool. 2527] near Whitby. < Zoologist, vii, 1849, pp. 2496, 2497. 



1849. Malherbe, A. Description de quelqnes nouvelles esiieces de Picin^es (Picus, 



Linn.). < Bev. et Mag. de Zool., i, 1849, pp. 529-544. 



Picus wilsonii, P. teinminckii, p. 529 ; P. mitchellii, p. 530 ; P. dnereigula, p. 531 ; Dendropi- 

 eos hartlaubii, p. 532 ; D. lafresnayi, p. .533 ; Celeopicos smaragdinieollis, Phaiopicos blythii, p. 

 534; P.jerdonii, p. 535; Mesopicos desmuri, y. .537; If. cecilii, p. 538: Chloropicas guerini,^. 

 539; Chrysopicos eailliautii, p. 540: Geopicos campestroides, p. 541: Zebrapicus pucker ani, 

 Melampicos Jlavigula, p. 542. 



1850. Malherbe, A. Description de quelqnes especes de Picin^es ; (Genus Picus, 



Linn). <^Bev. et Mag. de Zool., ii, 1850, pp. 154-158. 

 Ghloropicos isidori, p. 154 ; Chrysopicos atricolKs, p. 156, spp. nn. 



1850. Malherbe, A. Nouvelle Classification des Picin^es on Pics, devant servii de 



base a une Monographic de ces Oiseaux Grimpeurs, accompagn^e de planches 

 peintes. Metz. Impr. de Lamont. July 1850. 8vo. pp. 56. 



Pas vue moi-meme. Extraite des Mem. de I'Acad. Nat. de Metz. — ^Voir la revue de I'on.- 

 vrage par M. H. E. Strickland, inser^e dans les Contrib. Ornith. de Jardine, 1851, pp. 17-20. 



1851. Bird, W. F. W. Note on the Figure [Zool. , 2986] of the Hairy Woodpecker (Pi 



cus villosus). < Zoologist, ix, 1851, pp. 3034, 3035. 



