1006 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [VolY. 



1863. Ci.Kii.voNT, Lord. The Arc! ic Skua [StiTcoiarius parasiticus] leecliug ou Worms 

 uear Newry. < ZooJogisi, xxi, 1803, p. 8C92. 



1863. COUES, E. On the Lestris richardsoni of Swainson ; with a Critical Eeview of 

 the Subfamily Lestridina). < Proc. Acad. Nat. Sc\. Phila. , xv, 1863, pp. 121-138. 

 From his discussion of tlie claims of Lestris richardsoni to be considered a good speciea, 

 the author passes to review the entire subfamily, recognizing the following genera and spe- 

 ciea : — 



I. BuPUAGUS, Moehr. 1, B. skua (Brunn.). 2, B. anlarcticus (Less.). 



II. Steucokauius, Briss. 3, ,5. pomarinus (Temm.) (lege pomatorhinus). 4, S. parasiticus 

 Briinu. :>, S. richardsoni (Hv;.}. S. hardy i(Ti]}.). 7, S.spinicauda(Bp.}. S, il.btifoni(Boie). 



The nomenclature of this paper is tcceunic, the author having apparently imbibed some 

 untenable views of G. E. Gray's on this subject. S. richardsoni has not proved valid. The 

 four unciuestionablo Jiigers of the Northern Hemisphere are carefully distinguished and 

 adequately described, with copious synonymy. See same author at 1874, Birds of the North- 

 west. 



Cf Ibis, 1864, pp. 127, 128. 



1863. CoUES, E. [Ou the specitic validity of Larus smithsonianus. ] </6(s, v, 1863, 



p. 3(»7. 

 1863. DuNX, J. H. Pomariue Skuas [Stercorarius pomatorhiuus] in the Orkneys. 



<] Zoolof/lst, xxi, 1863, p. 8332. 

 1863. DuTTOX, .J. The Pomariue Skua [Stercorarius pomatorhinus] off Beachy Head. 



<^ Zoologist, xxi, 1863, x^- 8333. 

 1863. Mathews, M. A. Sabine's Gull (Larus [Xema]Sabini) in Devonshire. <^Zoolo- 



gist, xxi, 1863, p. 8448. 

 1863. Mathews, M. A. Buffon's Skua (Lestris parasiticus) near Wellington. < Zoolo- 

 gist, ^^\,l&Q'i,^.MiS. 

 1863. Mathews, M. A. The Little Gull [Larus minutus] and Sabine's Gull [Xema 



sabiniij at Weston-super-Mare. <^Zoologist, xxi, 1863, p. 8692. 

 1863. Newman, E. Pomariue Skuas [Stercorarius pomatorhinus] on the English 



Coast. <^ Zoologist, xxi, lc63, p. 8333. 

 1863. Rogers, H. The Pomariue Skua [Stercorarius pomatorhinus] in the Isle of 



Wight. < Zoologist, xxi, 1863, p. 8332. 

 1863. Saxby, H. L. Pomarine Skua (Lestris pomarinus) in Shetland. <^Zoologist, 



xxi, 1863, p. 8494. 



1863. SCHLEGEL, H. Lari < Mus. Hist. Nat. Pays-Bas, 4*^ livr. , aofit 1863, pp. 1-50. 



This group consists of the genera Larus and Stercorarius of the author, the Terns and 

 Skimmers not being here treated. 

 L. ichthyaetiis minor, subsp. n., p. 34. 



1863. Stevexson, H. Sandwich Tern (Sterna Boysii [cantiaca]) in Norfolk. < Zo- 

 ologist, xxi, 1863, p. 8332. 



1863. Young, E. Richardson's Skua [Stercorarius richardsoni] in Kent. < Zoologist, 



xxi, 1863, p. 8726. 



1864. BouLTON, W. W. Sandwich Tern [Sterna cantiaca] Shot at Flamborough. 



<iZoologist, xxii, 1864, p. 9291. 



1864. BouLTON, W. W. Little Gulls [Larus minutus] otf Bridlington Quay. <^ Zo- 

 ologist, xxii, 1864, p. 9365. 



1864. BoULTOX, W. W. Black Tern [Hydrochelidon nigra] at Filey. <:^ Zoologist, 

 xxii, 1864, p. 9365. 



1864. BouLTON, W. W. Common Skua [Stercorarius skua] at Flamborough Head. 

 <[ Zoologist, xxii, 1864, p. 9365. 



1864. BouLTON, W. W. Richardson's Skuas [Stercorarius richardsoni] off Bridling- 

 ton Quay. <^ ZoologiM, xxii, 1864, p. 9365. 



1864. BouLTOX, W. W. Button's Skua [Stercorarius buffoni] at Flamborough Head. 

 < Zoologist, xxii, 1864, p. 9365. 



