652 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [VolY. 



1844. Kessler, K. Beitraege ziir Natiirgeschichte der Spechte. <^ lUiU. Soe. Imp. Xat. 



MoscoH, xvii, pt. i, 1844, pp. 285-362, pll. x-xiii, uebsit Karte. (Aiirli sepaiatab- 

 dnickt, 80, Riga, 1844, pp. 80, 4 Taf.) 



1'"= Abtheil. Osteologie, pll. x, xi. S'" Abth. Ueber (lie Beflederuug der Spethte, uebsT eini- 

 gen Bemerkimgen iiber die Biirzeldriise. die Selileimdriisen, nnd der Zungenappavat, pll. xii, 

 xiii. 



184.5. Lafresxaye, F. de. Snr la genre Pieumue, de Tenniiinck, pi. coloriees. <^ Ber, 

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



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

 making many criticisms and rectifications. Xine species are recognized : P. eayenneiisis (e^ 

 Briss.), sp. n., P. temminckii (=P. exilis Temm.), sp. n., P. exiUs'Livht. (r=P. lichtensteinii, 

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

 d'Orb. Si, Lafr.), P. olivaceus, Lafr., P. cinnamomius Lafr., P. d'Orbignyam'S Lafr.. p. 7. 

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



1845. Lafresxaye, [F.] de. Rectications [sic] et additions a la monograpbie du 



Genre Picuninns. <^ Bev. Zoo}., viii, 1845, p. 111. 

 Voir torn, cit., pp. 1-11. 

 1845. Malherbe^A. Notice sur quelques csp&ces de Pics de Br<^sil. <[ Mem. de hi Soc. 

 Boy. de Liege, ii, 1846, pp. 6.5-70. 

 Pas vue moi-meme : j'ai tire le titre de la Bibl. de Canis et Engelmann. 

 1845. Maxherbe, A. Description de trois especes nouvelles dn genre Pious, Liun^. 



< Ber. Zool., \iii, 1845, pp. 373-377. 



P. {Leueonotopicug) stricklandi, p. 373; P. (L.) jardinii, p. 374: P. {L.) numj,dicua, p. 375. 

 1845. Malherbe,A. Description de sept especes nouvelles du genre Picus, T.,iniie. 



< Rev. Zoo/., viii, 1845, pp. 399-406. 



P. (Ghloropicus) pyrrhogaster, 399: P. (Brachyptemopicus) rubropygmUs. P. (Ghloropicus) 

 kirkii, p. 400: P. (C) rufoviridis, y. 401: P. (C.) xanthoderus, p. 402; P. (Chrysoptilopicus) 

 »mithii, p. 403; P. (Brachypternopicas) chrysonotu^, p. 404. 



1847. Gambel, W. [Note on a tridactjie woodpecker from Georgia, like P. pubesceus. ] 



< Proc. Amd. Xat. Sci. Phila., iii, 1847, p. 278. 



Same as subsequently described by W. L. Jones under name of P. lecmitei. 



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



< Ann. Lyr. Nat. Hist. Xeu- York, iv, 1848, pp. 489. 490, pi. xvii. (Read Mar. 13, 

 1847.) 



It proved to l)e P. pubescens accidentally lacking one toe. Meanwhile, however, Bona- 

 parte distinguished himself bj- making a new genns Tridactylia for it (Cons. Zygod., 1854, 8). 



1849. Bird, W. F. W. The Ntsw British Woodpecker [Picus villosus: cf. Zool. 2496] 



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

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

 losus ; cf. Zool. 2.527] near Whitby. < Zoologist, vii, 1849, pp. 2496, 2497. 



1849. M.4LHERBE, A. Description de quelques nouvelles especes de Picin<^es (Picus, 



Linn. ). < Rev. et .Wag. de Zool, i, 1849, pp. 529-544. 



Picus vjilsonii, P. temminckii, p. 529: /'. mitchellii. ji. 530; P. cinereignla, p. .531 : Dendropi- 

 cos haftlanbii. \>. 5^2 : D. lafresnayi, -p-HHZ: Geleopicos Kmaragdinicollis, Phaiopicos blytliii,-p. 

 534: P. jerdonii. p. 535; Mesopicns deamuri. p. .537; M. cecilii. p. .538: Chloropicas g%ierini,-p. 

 .539: Chrysopicos cailliautii. p. .540: Geopicos campestroides. p. 541: Zebrapicus pucherani, 

 Melampicos jlavigula, ]>. 542. 



1850. Malherbe, a. Descri]»tion de ([uclijucs especes de Piciu(5es ; (Genus Picus, 



Linn). < 7iVr. et Mag. de Zool., ii, 1850, pp. 1.54-158. 

 Chloropicos isidori, p. 1.54 ; Ohrysopicos atricolKs, p. 156, sp]). un. 



1850. Malherbe, A. Nouvelle Classification des Piciuees ou Pics, devaut servii de 



base a uue Monographic de ces Oiseaux Grimpeurs, accompagn6e de planches 

 peiutes. Metz. Impr. de Laniont. July 1850. 8vo. pp. 56. 



Pas vue moi-meme. Extraite des Mem. de I'Aead. Nat. de Metz. — Toir 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 



CU8 villosus). < Zoologist, ix, 1851, pp. 3034, 3035. 



