GYMNOSTINOPS. . 439 
2. Gymnostinops guatemozinus. (Tab. XXXII.) | 
Ostinops guatemozinus, Bp. Compt. Rend. xxxvii. p. 833+; Cass. Pr. Ac. Phil. 1860, p.138?; Scl. 
& Salv. P. Z. §. 1879, p. 508°; Scl. Ibis, 1883, p. 149 *. 
Cassicus guatemozinus, Cass. Pr. Ac. Phil. 1867, p. 71°. 
Gymnostinops guatemozinus, Scl. Cat. B. Brit. Mus. xi. p. 814° 
Nigerrimus, crista verticali elongata, nigra; dorso medio, alarum tectricibus, supracaudalibus et crisso saturate 
castaneis ; cauda flava, rectricibus duabus mediis abbreviatis, nigris ; rostro nigro, apice flavo-aurantiaco, 
pedibus nigris. Long. tota 19°5, alee 9°6, caude 7-6 (rectr. med. 5:3), rostri a rictu 2°7, tarsi 2°2. 
2 mari similis, sed multo minor. Long. tota 15-5, alee 8-0, caude 6-5 (rectr. med. 4°4), rostri a rictu 2°0, 
tarsi 1:8. (Descr. maris et feminse ex Remedios, Colombia. Mus. nostr.) 
Hab. Panama, Turbo (Wood) ?°.—Cotomstia 13 4 8, 
The type of this beautiful species was obtained by M. Fontanier in the valley of the 
Magdalena river, and sent to the Paris Museum, where it was described by Bonaparte 
in 18531. Six or seven years afterwards, Mr. C. J. Wood, who accompanied Lt. Michler’s 
exploring expedition to Darien, secured a single male specimen at ‘‘ Camp Abert,” on 
the banks of the Truando river, on our extreme southern border. We have no record 
of its occurrence further northwards, and along the line of the Panama Railway the 
allied G. montezume is found in plenty. 
The late T. K. Salmon met with G. guatemozinus during his stay at Remedios, a 
village on the mountains dividing the Cauca and Magdalena valleys, situated at an 
elevation of 2360 feet above the sea, on the banks of the Ité river, an affluent of the 
Magdalena. Here he obtained the eggs of this species, which are pale pinkish white, 
sparsely spotted with large red-brown spots. ‘The iris of the living bird is blue °. 
In comparing this species with G. montezume, the form of the tail is noticeable, the 
middle feathers being very much shortened. At first sight it appears as if they 
were not fully developed; but this is not the case. In all the species of Ostinops, 
Gymnostinops, and in Eucorystes the central tail-feathers fall short of the longest, but 
not nearly so much so as in G@. guatemozinus. 
We have figured one of Salmon’s specimens, a male. 
OSTINOPS. 
Ostinops, Cabanis, Mus. Hein. i. p. 187 (1851); Sclater, Cat. B. Brit. Mus. xi. p. 315. 
Mr. Sclater leaves eight species in Ostinops, after removing four and placing them 
in Gymnostinops. Only the most widely-ranging of these eight, viz. O. decumanus, 
occurs within our limits, in the State of Panama; the rest are spread over the greater 
part of the tropical forests of South America, our 0. decumanus being the only species 
found in South-eastern Brazil. 
Ostinops is very like Gymnostinops in general structure and the colour of its plumage, 
but may readily be distinguished by the space beneath the eye being fully feathered up 
to the base of the mandibular sheath. 
