326 DR. SCLATER ON A NEW BIRD FROM MADAGASCAR. [ Mar. 28, 
5. Several examples of Dispharagus crassicauda from the proven- 
triculus of the Great Northern Diver (Colymbus glacialis), and also 
a solitary specimen of the Echinorhynchus polymorphus. For the 
above-named Nematode I have here employed the nomenclature of 
Dr. Molin, Professor of Zoology at Padua, although it is often 
extremely difficult to determine whether a particular species is refer- 
able to the genus Dispharagus or to Spiroptera. 
7. DESCRIPTION OF A NEw SPECIES OF PASSERINE BirD FROM 
Mapaeascar. By P. L. Scrater, M.A., Pu.D., F.R.S., 
SECRETARY TO THE SOCIETY. 
(Plate XIII.) 
In a series of bird-skins lately received by Mr. S. Stevens from 
Mr. Plant, who is now collecting specimens of natural history in 
Madagascar, is a single specimen of a small bird which I have not 
previously met with, and which I consider to be new to science. 
It belongs either to the Muscicapide or to the Laniide (if these 
two families are really distinet, which I much doubt), and must pro- 
bably be placed somewhere in the neighbourhood of Pachycephala 
and the smaller species of Tephrodornis, to which the name Hylo- 
terpe* has been applied. But Iam not able to find any other species 
strictly congeneric with the present bird; and so, although always 
unwilling to increase the much too great number of generic names 
already existing, I consider it is perhaps better to invent a new term 
for the present species than to refer it to a genus with which it may 
probably have very little connexion. I therefore propose to call it 
Hylophorba ruticilla with the following characters :— 
HyLornorsa, genus novum, affine generi Hyloterpe. 
Rostrum dimidio brevius quam caput, compressum, culmine arcuato, 
gonyde ascendente, dente apicali distincto. Narium aperture 
ovales, patule, basales. Sete rictales pauce, breves. Ale 
breves, remiges prim. X.; primus spurius, secundi dimidium ab 
€  insertione @quans: iv'™*® y™* yi" fere equales et vii™"™ supe- 
rantes, vii" longior quam iii*. Cauda modica, apice quadrato. 
Pedes debiles, tarsis antice squamatis, postice levibus ; digitis 
brevibus. 
HyYLOPHORBA RUTICILLA, sp. nov. (Plate XIII.) 
Murino-fusca, capite et cervice supra cinereis: alis nigricanti- 
brunneis, dorsi colore limbatis: cauda rubro-castanea: subtus 
pallide fulva, ventre medio dilutiore, gula alba; tectricibus 
subalaribus ventre concoloribus ; rostro nigro, ad rictum imum 
* Blyth (Ibis, 1865, p. 43) states that his Indian Tephrodornis grisola (Jerdon’s 
B. of India, i. p. 411) is identical with Hyloterpe philomela, Cab. (See my re- 
marks on this species, P. Z. 8S. 1863, p. 217). 
