Dr. G. Hartlaub on a New Genus of African Birds. 139 
XII.— On a New Genus of African Birds. 
By Gustav Hartlaub, M.D., For. Mem. Z.S., &c. 
(Plate VI.) 
Phlexis, gen. nov. 
Char, gener.: — 
Rostrum rectum, mediocre, emarginatum, gracile, subulatum, 
apicem versus compressum, valde carinatum, gonyde di- 
midio apicali adscendente; setis rictalibus vix ullis; naribus 
in fossa majore positis, operculo magno fere clausis. 
Alee breves, caudse basin vix superantes, fornicatse, debiles, 
truncato-rotundatse, remige primo minim o, quarto et quin to 
subsequalibus omnium longissimis. 
Cauda elongata, valde gradata, mollis; rectricibus latiusculis, 
scapis parum rigidis, pogoniis mollibus, subpellucidis, 
quatuor intermediis sequilongis. 
Pedes satis robusti, tarsis antice scutellatis, digitis externis et 
internis sequilongis. 
Ptilosis mollis, laxa; plumis tergi, uropygii et hypoebondriorum 
valde elongatis. 
Phlexis layardi, sp. nov. (Plate VI.) 
Supra olivaceo-fusca, cauda subrufescente; subtus fulvo-ferru- 
ginea; abdomine pallidiore, in colorem isabellinum vergente; 
regione parotica conspicue cinerascente; hypoebondriis 
dorsi colore adumbratis; loris subrufescentibus; rostro 
nigricante, mandibula ad basin pallida; pedibus dilute 
brunneis. 
Long. tot. 5" 10"', rostri a fronte 5'", alse 2" 2"', caudse 2" 9'", 
tarsi 9'". 
Hab. Natal '{E. L. Layard). 
Tbe type of this very interesting and well-defined new 
African form is Bradypterus victorini of Sundevall (Zoolog. 
Anteckn. Victorin. p. 29)*, a rare and little-known bird, which 
has hardly anything to do with the genus Bradypterus of 
Swain son, this latter having been originally formed for the 
“Pavaneur^ of Levaillantf ( Sylvia brachyptera , Vieillot). 
P" * [Cf Ibis, 1861, p. 203 .—Ed.] 
t The true “ Pavaneur ” of Levaillant being unknown to me, I wrote 
for the specimen in the Berlin Museum, which Cabanis (Mus. Hein. i. 
p. 43) considers to belong to Levaillant’s species, and which, judging 
from his description, must be a female. This I have examined most 
minutely, and have arrived at the following results:—The u Pavaneur ” 
