324 RALLID. 
Supra olivascenti-ehocolatinus, uropygio et supracaudalibus nigris, albido transfasciatis ; remigibus sepiariis, 
primario primo anguste albido limbato; pileo plumbeo ; facie laterali, colli et pectoris lateribus cinereis ; 
gutture, pectore et adbomine medialiter albis, prepectore vix cinereo lavato; corpore reliquo subtus albo 
nigroque transfasciato, tibiis hypochondriisque nigris et subcaudalibus cervino tinctis; axillaribus nigris 
albo transfasciatis; subalaribus albis, plumis ad basin fuscis: rostro nigro, ad basin mandibulee virescente ; 
pedibus pallide brunneis; iride rubra; palpebris ochraceo-brunneis. Long. tota circa 5°8, ale 2:9, 
caude 1:35, culm. 0°7, tarsi 1:0. (Descr. maris adulti ex Nauta. Mus. Brit.) 
Av. juv. preecedenti similis, sed tectricibus alarum majoribus albo transfaseiatis. (Descr. exempl. ex Maroni 
River. Mus. nostr.) 
Hab. Honpvras, Segovia River (Townsend); Nicaragua, Escondido River (ichmond ™). 
—Gutana 41138; Amazons451218; Trinmpap 3418, 
The Central-American form of €. ewilis 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 albigularis. 
Corethrura albigularis, Lawr. Ann. Lyc. N. Y. vii. p. 8302'; Sel. & Salv. P. Z. S. 1864, p. 3727. 
Porzana albigularis, Scl. & Salv. Ex. Orn. p. 109, pl.55°; P. Z. S. 1868, p. 454°; Ridgw. Pr. U.S. 
Nat. Mus. x. p. 111°; Bangs, Pr. New Engl. Zool. Club, ii. p. 14°. 
Creciscus albigularis, Sharpe, Cat. Birds Brit. Mus. xxii. p. 140"; Salvad. & Festa, Boll. Mus. 
Torino, xiv. no. 339, p. 12°. 
Porzana alfari, Ridgw. Pr. U.S. Nat. Mus. x. p. 111°. 
Creciscus alfara, Sharpe, Cat. Birds Brit. Mus. xxii. p. 141, note”. 
Supra brunneus, uropygio et supracaudalibus vix saturatioribus; eauda nigra; tectricibus alarum dorso 
concoloribus ; remigibus sepiariis, secundariis intimis dorso concoloribus ; pileo brunneo, dorso concolore ; 
facie laterali, collo postico et laterali clare castaneis; gula et abdomine medio pure albis; gutture imo, 
preepectore et pectore summo late castaneis ; corporis lateribus cum subcaudalibus et axillaribus nigris 
albo transfasciatis ; subalaribus albis, plumis basaliter nigris, quasi fasciatis. Long. tota circa 5:0, ale 2°95, 
caude 1-0, culm. 0°8, tarsi 1-1. (Descr. femine adults ex Lion Hill Station, Panama. Mus. nostr.) 
Hab. Costa Rica, Las Trojas (Alfaro °1°); Panamal?4, Veragua (Arcé?), Lion Hill 
(M‘Leannan", Brown °), Laguna de Pita (festa *).—CoLoms1a ’. 
C. albigularis belongs to the rufous- or white-breasted section of the genus, with 
barred axillaries, but differs from C. ewilis 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. cinereiceps in having the throat white, whence the specific name, and 
