6^ Zoological Society. white along the basal portion of their outer webs ; all the under sur-face scarlet, separated from the green of the chest by a semilunar mark of white ; two middle tail-feathers golden green ; the two next on each side golden green on their outer webs and black on their inner, the whole six tipped with black ; the three outer feathers on each side black, crossed by numerous narrow bars of, and narrowly tipped with, white ; thighs black ; bill orange ; irides red ; feet dark grey. Total length, 10 inches; bill, 1 ; wing, 5^^; tail, 5f ; tarsi, ^. Hah. Escuintla, South America. Remark. — Nearly allied to Trogon collaris, Vieill. CucuLUS OPTATUS. Cuc. coi'pove superiore cceruleo-griseo ; pogo-niis internis primariarum fasciis latis albis ornatis ; remigihus sa-turate violaceo-brunneis i apicibus subalbidis, serie macularum ob-long arum albarum alternatim ordinatd ; corpore subtiis albo, fasciis nigris. The whole of the upper surface slaty grey ; inner webs of the pri-maries broadly barred with white ; tail-feathers dark violet-brown, "with a row of oblong spots of white placed alternately on either side of the stem, and slightly tipped with white ; the lateral feathers have also a row of white spots on the niargin of their inner webs ; chin and breast light grey ; all the under surface bufFy white, crossed by bands of black ; irides, bill and feet orange. Total length, 13 inches ; bill, 1;^ ; wing, 7| ; tail, 6^; tarsi, |. Hab. Port Essington, Australia. Remark. — Closely allied to the Common Cuckoo of Europe. CucuLus INSPERATUS. Cuc. capite, guld, et corpore superiore cce-ruleo-griseis ; alts, dorsoque nitide viridescentibus ; caudd brunneo-viridi singuld plumd apice albo, et marginibus pogoniorum inte-riorum ordine macularum albarum triangularium ornatis ; parte subscapulari tectricibus caudce inferioribus, crissoque rujis ; corpore subtus rufo-tincto-griseo. Heftd, throat and all the upper surface dark slate-grey ; back and wings glossed with green ; tail glossy brownish green, each feather tipped with white, and with a row of triaugular-shaped white marks on the margins of the inner webs ; primaries and secondaries with a patch of white on their inner webs near the base ; edge of the shoulder •white ; under surface of the shoulder, vent and under tail-coverts rufous ; the remainder of the under surface grey, washed with rufous ; bill black ; feet olive. Total length, 9^ inches ; bill, I ; wing, 6j ; tail, 5 ; tarsi, f . Hab. New South Wales. JRemark. — Nearly allied to C. cineraeeus of Vigors and Horsfield. CucuLUS DUMETOBUM. Cuc. cttpite, uropygio, colloque saturate cctruleo-griseis ; alls, caudd dorsoque metallice brunneis ; apicibus remigum leviter albis ; pogoniis interioribus serie macularum tri-angularium parvarum ornatis; pectore griseo, rufo-tincto. Head, neck and rump dark slate-grey ; back, wings and tail bronzy brown ; tail-feathers slightly tipped with white and with a row of
BioStor
