18 
ORNITHOLOGY. 
guishing mark is the white fascia oil the wing, formed by that colour prevailing in the primary wing- 
coverts, and on the base of the primary quill-feathers. The markings of the lateral tail-feathers afford 
also a mark of distinction. There is no appearance of a white streak over the eye. There are three 
or four specimens in the collection, differing somewhat in size, but according in general character. 
Unfortunately, no note is attached to any, to indicate their locality. 
Fam. SYLVIAD^E. 
Si ALIA CA5RULEOCOLLIS. n. S. 
Sial. capite, gula, collo, corporeque superiori cceruleis ; dorso interscapulari brunnescenti ; pectore abdominisque lateri- 
bics rufis , hoc imo albescenti. 
Longitudo corporis, 6J ; rostri, aloe, a carpo ad apicem remigis secundae, 41 ; caudas, 3; tarsi, 
PLATE III. 
This species may be readily distinguished from the Sylvia sialis, Lath., which forms the type of 
Mr. Swainson’s genus Sialia, by the blue colour of the throat in front, and the brown colour of the 
back. The bill also is slighter than in the latter bird. A young specimen, or perhaps a female of the 
species, is in the collection, which has the colours much less vivid than in the adult bird; the rufous- 
colour of the lower body seems also to extend further up the throat. It, however, evinces its distinc- 
tion from the young of the allied species by the slighter bill, and by a white mark extending over the 
outer web of the interior quill-feathers, at their base. 
Trichas personatus. Swains. 
Turdus Trichas. Linn., Syst. Nat. vol. 1. p. 293. sp. 7. 
Sylvia Trichas. Lath., Lid. Orn. p. 519. sp. 36. — Pr. of Musignano, Syn. 
p. 84. sp. 129. 
Sylvia Marylandica. IVils., Am. Orn. vol. 1. p. 88. pi. 6. f. 1. 
Yellow-throated Warbler. Penn., Arct. Zool. vol. 2. p. 400. sp. 286. 
Sylvicola coronata. Swains. 
Motacilla coronata. Linn., Syst. Nat. vol. 1. p. 332. sp. 31. 
Sylvia coronata. Lath., Ind. Orn. p. 538. sp. 115. — Wils., Am. Orn. vol. 2. 
p. 138. pi. 17. f. 4. — Pr. of Musignano, Syn. p. 77. sp. 105. 
Golden-crowned Fly-catcher. Edw., t. 298. 
Golden-crowned Warbler. Penn., Arct. Zool. vol. 2. p. 403. sp. 294. 
Motacilla leucoptera. n. s. 
Mot. corpore supra, gula, pectore, rectricibusque mediis atris ; fronte, strigd superciliari, alteraque suboculari ad nucJiam 
extendente, abdomine, pteromatibus, remigibus ad basin, rectricibusque duabus utrinque lateralibus albis. 
Rostrum pedescpie nigri. Tectrices alarum inferiores alb®. Longitudo corporis, 6 ; rostri, | ; alee, a carpo ad 
apicem remigis prim®, ; caudee, 3 J ; tarsi, |. 
Troglodytes spilurus. n. s. 
Trogl. supra rufescenti-brunneus, subtus albescens, crisso nigro fasciato ; gula lineaque superciliari albis ; alts cauddque 
fusco fasciatis, hujus plumis, quatuor mediis exceptis, ad apicem albo maculatis, laterali utrinque pogonio externo albo guttato. 
Rostrum pedestpie cornei, illius mandibula inferiori pallidiori. Longitudo corporis, ; alas, a carpo ad apicem 
remigis quarts, 2 ; rostri, \ ; caudas, 2 ; tarsi, |. 
PLATE IV. F. 1. 
