Rallus sulcirostris of Wallace and its Allies. 311 
Wallace states, Railus sulctrostris is closely allied to R. cele- 
bensis, and has a similar white line on each side of the head, 
it differs from that species in its smaller size and in the intense 
black of the throat, which has no appearance of cross bands. 
Further distinctive characters are to be found in the longer 
stronger bill, and in the strongly marked sulcus along the 
lower mandible, whence Mr. Wallace derived its name. I 
have no doubt of its being an excellent species, which should 
stand as follows :— 
Hyroranipra sutcrrosrris. (Plate VI.) 
Rallus sulcirostris, Wallace, P. Z. S. 1862, p. 345. 
Hypotenidia sulcirostris, Salvad. Ann. Mus. Civ. Genova, 
vu. p. 81. 
Head of Hypotendia sulcirostris. 
Supra fusca olivaceo perfusa; capitis lateribus et gutture 
toto nigris, strigd rictali cervicem utrinque descendente 
albi; abdomine et subalaribus nigris albo transfasciatis ; 
remigum pogoniis internis fascias obsoletas ostenden- 
tibus : long. tota 12°5, ale 5°7, caude 2:3, tarsi 2:0, 
rostri a rictu 2°8. 
Hab. Inss. Sula (Wallace). 
Obs. Proxima H. celebensi, sed gutture nigro, crassitie 
corporis minore, et rostro robustiore diversa. 
The genus Hypotenidia was instituted by Reichenbach in 
1852 (Naturl. Syst. d. Vogel, p. xxii), with Rallus philip- 
pensis asitstype*. Schlegel (Mus. des Pays-Bas, Rall, p. 21) 
* Reichenbach gives as his type “ Rallus pectoralis, Cuv.,” which s 
= Rallus lewinit, Sw. (of. Puch. Rev. Zool. 1851, p. 276) ; but he refers 
to his figure, which is simply a copy of Gould’s Rallus pectoralis (B. 
Austr. vi. pl. 76), 2. e.=28, philppensts. 
