1894.] NATURAL SCIENCES OF PHILADELPHIA. 139 



iu Report of N. Z. Expos. 1865, but is entirely ignored by him in his 

 subsequent work on Birds of New Zealand. I have not access to the 

 first work, but judge the name to be a synomym perhaps of Hypo- 

 taenidia philippensis L. 



H. sulcirostris and the two following species I arrange here in ac- 

 cordance with Dr. Sclater's views as they are evidently members of 

 this group, though I have no specimens for examination. 



CABALUS Hutton. 

 Cabalns Hutton, Trans. N. Z. Inst., VI, p. 108 (typei?. modestiis 

 Hutton). 



Cabalus dieffenbaclii (Gray). 



Ballus dieffeiibachi Gray, App. DiefT. Travels, Vol. II, p. 197. 



Rallus modestiis Hutton, Ibis, 1872, p. 247. 



Hab. Chatham Isl. 



C. modestiis may be a distinct species as has been held by a num- 

 ber of ornithologists; the majority of those who have examined 

 specimens, however, seem to consider it merely the young of G. dief- 

 fenbaclii. 



Cabalus macquariensis (Hutton). 



Rallus macquariensis Hutton, Ibis, 1879, p. 454. 



Hab. Macquarie Isl. 



Cabalus sylvestris (Sclater). 



Ocijdromus sylvestris Scl. , P. Z. S., 1869, p. 472. 



Hab. Lord Howe Isl. 



Dr. Sharpe states that this species is really a Cabalus and has been 



wrongly referred to Ocydromus (Ibis, 1898, p. 262). 



ROUGETIUS Bonap. 

 1856. — Roiigetius Bonap., Compt. Rend., t. 43, p. 599 (type R. 

 abyssinlcus Rupp. = i?. rougetii Guer.) 

 The species generally referred to this genus fall into two groups, 

 one containing the type and the other comprising R. bernieri of 

 Madagascar and its close allies from the adjacent islands. In the 

 former the bill is much smaller and weaker, though its shape and 

 proportions are about the same. For the latter group Dr. Sharpe 

 has proposed the generic name Dryolimnas and it seems better to re- 

 cognize the two genera. 



Rouge tius rougetii (Guer). 



Ralbis roagetn Guer., Rev.Zool., 1843, p. 322. 



Rallus abyssiniciis RupY>. , Syst. Uebers. , 1845, No. 478, 1 46. 



Hab. Abyssinia. 



