324 EALLID^. 



Supra olivaseenti-cliocolatiniis, uropygio et supracaudalibns nigris, albido transfasciatis ; remigibus sepiariis, 

 primario primo anguste albido Embato ; pileo plumbeo ; facie lateral!, colli et pectoris lateribus cinereis ; 

 gutture, pectore et adbomine medialiter albis, praepeetore vix cinereo lavato ; corpore reliquo subtas albo 

 nigroque transfasciato, tibiis hypochordriisque nigris et subcaudalibus cervino tinctis ; axillaribus nigris 

 albo transfasciatis ; subalaribus albis, plumis ad basin fuscis : rostro nigro, ad basin mandibulae virescente ; 

 pedibus pallide branneis ; iride rubra; palpebris ochraceo-brunneis. Long, tota circa 5-8, alas 2-9, 

 candse 1-35, culm. 0-7, tarsi 1-0. (Descr. maris adulti ex Kauta. Mus. Brit.) 



Av. juv. prfficedenti similis, sed tectricibus alarum majoribus albo transfasciatis. (Descr. exempl. ex ilaroni 

 Eiver. Mas. nostr.) 



Hob. HoNDiTEAS, Segovia 'River {TowTtsend^*)- Nicaragua, Escondido River (Eiehmond ^^). 

 —Guiana 4 "13. Amazons * s 12 is . Teikidad ^ 4 is. 



The Central-American form of C. exilis has been described by Mr. Ridgway as a 

 subspecies, C. exilis vagans, on account of its greater size and the relatively longer 

 tarsus ; he, however, saw but a single example, from the Segovia River, Honduras. 

 Mr. Richmond subsequently procured a specimen on the Escondido River, Nicaragua, 

 of which he gives measurements that do not exceed those of some of the South- 

 American skins in the British Museum. Further evidence is therefore required before 

 C. exilis vagans can be definitely regarded as a distinct race, the gap in the recorded 

 geographical distribution not proving much in a bird of such retiring habits. 



As Mr. Ridgway admits that there is no difference in colour between them, and as 

 we have no Central-American specimens in our collection, we have described a male 

 and female from the Upper Amazons and Guiana respectively. 



3. Creciscus albignlaris. 



Corethrura albigularis, La^vr. Ann. Lye. N. Y. viL p. 302' ; Sd. & Salv. P. Z. S. 1864, p. 372 \ 

 Porzana albigularis, Scl. & Salv. Ex. Orn. p. 109, pi. 55 ' ; P. Z. S. 1868, p. 454 * ; Ridgw. Pr. U. S. 



Nat. Mus. X. p. Ill ' ; Bangs, Pr. New Engl. Zool. Club, ii. p. 14 \ 

 Creciscus albigularis, Sharpe, Cat. Birds Brit. Mus. xxiii.p. 140'; Salvad. & Festa, Boll. Mus. 



Torino, xiv. no. 339, p. 12'. 

 Porzana alfari, Ridgw. Pr. U. S. Nat. Mus. x_ p. Ill '. 

 Creciscus alfara, Sharpe, Cat. Birds Brit. Mus. xxiii. p. 141, note '". 



Supra brunneus, tiropygio et supracaudalibns vix saturatioribus ; canda nigra ; tectricibus alamm dorso 

 concoloribus ; remigibus sepiariis, secundariis intimis dorso concoloribus ; pileo brunneo, dorso concolore • 

 facie laterali, coUo postico et laterali clare castaneis ; gula et abdomine medio pure albis ; gutture imo 

 praepeetore et pectore summo laete castaneis ; corporis lateribus cum subcaudalibus et axillaribus nigris 

 albo transfasciatis ; subalaribus albis, plumis basaliter nigris, quasi fasciatis. Long, tota circa 5-0 alEe2-95 

 caudae 1*0, culm. 0-8, tarsi 1-1. (Descr. ferainae adaltae ex Lion Hill Station, Panama. Mus. nostr.) 



Hah. Costa Rica, Las Trojas {Alfaro » ^o) ; Panama i - \ Veragua {Arce 7), Lion Hill 

 {M-Leannan ', Brown ^), Laguna de Pita {Festa ^). — Colombu ''. 



C. alMgularis belongs to the rufous- or white-breasted section of the genus, with 

 baiTed axillaries, but differs from C. exilis in having the back of the neck and mantle 

 brown, like the rest of the upper surface, and not rufous as in that species. It 

 agrees with C. cinereice_ps in having the throat white, whence the specific name, and 



