Proceedings of the Scientific Meetings of the Zoological Society of London 1868

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1868.] ON THE AMERICAN RALLID.E. 453 Lawrence's Corethrura guatemalensis is referable to this species, as his description shows no reason to the contrary. W e have also examined the type of Rallus castaneus (Puch. ex Cuv.) in the Paris Museum, and have no doubt of its being a synonym of Rallus concolor, Gosse. Prince Bonaparte names (C. R. xliii. p. 599), without describing, a Rufirallus boeckii from the Berlin Museum. Schlegel (/. s. c.) states that one of the types of this supposed new species is in the Leyden Museum, and places it as a synonym of this bird, which he calls Rallina castanea. 7. PORZANA CASTANEICEPS, sp. nov. Supra olivacea : capite undique et corpore subtus ad imum pectus castaneis, gula dilutiore: ventre imo, tibiis et hypochondriis dorso concoloribus : long, tota 8-0, alee 4*4, rostri a rictu 1*1, tarsi 2*0. Hab. Rio Napo (Mus. Brit.). Mus. Brit. There is a single example of this apparently undescribed species in the British Museum. It was purchased from Mr. Gould in 1855. The species is nearly allied to P. concolor, but is easily recognizable by the chestnut colouring only extending over the head and front part of the body below. (3) LATERIRALLUS. Clavis specierum. a. gula cum pectore castaneis 8. P. hauxwelli. b. gula alba, pectore albo aut rufo. a', crisso rufo 9. P. melanophtsa. //. crisso albo nigroque transfasciato 10. P. albigularis. cf. crisso medio nigro utrinque albo 11. P. leucopyrrha. 8. PORZANA HAUXWELLI, sp. nov. Corethrura, sp. ?, Scl. & Salv. P. Z. S. 1866, p. 200. Porzana fasciata, Scl. & Salv. P. Z. S. 1867, p. 981. Porzana hauxwelli, Scl. & Salv. Ex. Orn. p. 105, t. 53. Fuscescenti-olivacea, alis obscurioribus, capite toto cum collo et subtus ad imum pectus castaneis : abdomine rufo nigroque transfasciato : subalaribus rufis nigro maculatis : rostro obscure corneo, pedibus saturate corylinis: long, tota 6*5, alee 3*5, caudce 1*2, tarsi 1*6, rostri a rictu 0*85. Hab. Amazonia Peruviana; Ucayali (Bartlett), Chamicurros et Pebas (Hauxwell). Mus. Brit., S. & G. Obs. Similis P. castaneo, sed ventre rufo nigroque conspicue trans­fasciato. 9. PORZANA MELANOPHCEA. Ypecahapardo obscuro, Azara, Apunt. iii. p. 230. no. 376. Rallus melanophaius, Vieill. N. D. xxviii. p. 549, et Enc. Meth. p. 1064. PROC. ZOOL. S O C - 1868, No. XXX.