ORNITHOLOGY. 
17 
Muscicapa semiatra, n.s. 
Muse, capite, collo, pectore abdomineque summo atris; abdomine imo, crisso, rectricumque exHmarum pogoniis externis 
ad latera albis ; dor so, alls, caudaque cinereo-fuscis. 
Rostrum pedesqae atri. Longitudo corporis, 6| ; rostri, ~ ; alee, a carpo ad apicem remigis tertiae, 3| ; caudee, 3^; 
tarsi, 
TyRANNUS CINEREUS. n. S. 
Tyr. supra cinereus, subtus albescens; remigibus fuscis ; tectricibus inferioribus alarum, pectorisque lateribus rufes- 
centibus. 
Rostrum pedesqne atri. Longitudo corporis, 8 ; rostri, -g ; aloe, a carpo ad apicem remigis tertiae, ; caudee, 4 ; 
tarsi, 1 
This bird belongs to that restricted portion of M. Vieillot’s genus Tyrannus, to which Mr. Swainson 
retains the name. ( Zoot . Journ., vol. 3. p. 165.) They are well distinguished by the strong emargina- 
tion at the apex of the two external quill-feathers. 
Fam. LANIADiE. 
PlTANGUS SULPHURATUS. Swains. 
Tyrannus sulphuratus. Vieill., Ois. de V Am. Sept. tom. 1. p. 77.pl. 47. 
Lanius sulphuratus. Linn., Syst. 1. p. 137. sp. 19. 
Becarde k ventre jaune. Buff., PI. Enl. 296. 
Yellow-bellied Shrike. Lath., Gen. Hist . vol. 2. p. 84. sp. 104. 
Lanius Ludovicianus. Linn., Syst. 1. p. 134. sp. 6. — Pr. of Musignano, Syn. 
sp. 92. 
Loggerhead Shrike. Wils., Am. Orn. vol. 3. p. 57. pi. 22. f. 5. — Audubon, 
Birds of Amer. pi. 57. 
Fam. MERULIDjE. 
Turdus NjEVIUS. Lath., Ind. Orn. p. 331. sp.13. 
Varied Thrush. Penn., Arct. Zool. vol. 2. p. 337. sp. 197. t. 15. 
Turdus migratorius. Linn., Syst. Nat. 1. p. 292. sp. 6. — Wils., Am. Orn. vol. 1. 
p. 35. pi. 2. f. 2. — Pr. of Musignano, Syn. p. 75. sp. 97. 
Red-breasted Thrush. Penn., Arct. Zool. vol. 2. p. 336. sp. 196. 
Several specimens were brought home from Monterey. 
Orpheus leucopterus. n.s. 
Turdus supra cinereus ; alis caudaque nigris ; gula, abdomine , ptilorum apicibus, pteromatibus , remigibus primariis ad 
basin, rectricibusque lateralibus albis ; pectore cineraecente. 
Rostrum pedesque atri. Pteromata basesque remigum primariarum albae, fasciam albam latam alarem exhibentes. 
Rectrices, extima tota alba, nota gracili ad latus pogonii interni nigra excepta ; secunda alba, linea elongata nigra utrin- 
que notata-, tertia nigra, apice albo ; caeterae tot® nigra. Tectrices alarum inferiores alb®, nigro parce in medio notat®. 
Longitudo corporis, 9 ; rostri, | : alee, a carpo ad apicem remigis quart®, 5| ; caudee, 5 ; tarsi, 1 1. 
This bird has the general appearance of the well-known mocking Thrush, Turdus polyglottus of 
North America, as well as of the allied species, Turdus Orpheus of South America. Its chief distin- 
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