PODILYMBUS. — PODOA. 
247 
occipitalis Lesson, Pernetty Voy. Tb. 11. — Schlegel, Mus. Pays-Bas Urin. 41. 
[America merid. 
Podiceps calipareus , P. chilensis Lesson et Garnoï, Voy. Coquille Ois. 
601. 727. Tb. 45. 
Poliocephalus occipitalis, Tachybaptus chilensis Bonaparte, Compt. rend. 1856. 
XLIL 775. 
^ Calipareus kalipareus, Sylbeocyclus chilensis Gray, Handl. Birds IIL 94. 
orientalis Brehm, Naumannia 1855. = Podiceps auritus Lath. 
pallidus Brehm, Naumannia 1855. = Podiceps minor Lath. 
patagiatus Brehm, Vögel Deutschi. 953. = Podiceps cristatus Lath. 
Pelzeliii Hartlaub, Ornith. Madagascar 83. — Schlegel et Pollen, Rech. 
Faune Madag. 151. Tb. 40. [Madagascar. 
Poliocephalus Pelzeini Gray, Handl. Birds HL 94. 
Voron kohi. — Vivy. 
philippensis Bonnaterre, Encycl. méth. 58. — Podiceps minor Lath. 
poliocephalus Jardine, Illustr. Ornith. Tb. 13. = Podiceps nestor Gould. 
pygmaeus Brehm, Vögel Deutschi. 966. = Podiceps minor Lath. 
recurvirostris Brehm, Naumannia 1855. = Podiceps auritus Latpl 
RoUfiiidi QuoY et Gaimard, Voy. Uranie Tb. 36. — Schlegel, Mus. Pays-Bas 
Urin. 42. [Maluinae. 
Rollandia leucotis Bonaparte, Compt. rend. 1856. XLH. 775. 
rubricoUis Latham, Ind. Ornith. II. 788. = Podiceps griseigena Gray. 
rafipectus Gray, Voy. Erebus Terror Birds 17. Tb. 19. — Potts, Transact. 
New Zeal. Inst. II. 73; IIL 105. Tb. 8. [Nova Zealandia. 
Poliocephalus rußpectus Bonaparte, Compt. rend. 1856. XLII. 775. 
Totokipio. Weiweia. 
slavus Bonaparte, Compt. rend. 1855. XLI. 244. — Podiceps cornutus Lath. 
St. Thomae Gray, Handl. Birds III. 93. Podiceps cornutus Lath. 
subcristatus Bechsteln, Natg. Deutschi. IV. = Podiceps griseigena Gray. 
tricolor Gray, Proc. Zool. Soc. 1860. 366. = Podiceps minor Lath. 
Widhalmi Göbel, Journ. Ornith. 1870. 312. = Podiceps cristatus Lath. 
PODILYMBUS (Colymbidae) Lesson, Traité Ornith. 1831. 595. — Gray, Genera 
Birds III. 633. — Podiceps Lath. 
Synon.: Sylbeocyclus Bonap. — Hydroka Nutt. 
Bill shorter than the head, strong, and much compressed on the sides, with 
the culraen much curved to the tip, which is hooked over that of the lower man- 
dible and entire; the gonys short and suddendly advancing upwards; the nostrils 
placed anteriorly in a broad membranous groove, oval and exposed. Wings short, 
with the second quill the longest, and the first four more or less emarginated an- 
teriorly near the tip. Tail not apparent. Tarsi short and much compressed on 
the sides and the posterior edge serrated. Toes long, depressed and strongly mar- 
gined on the sides, especially on the inner margins; the hind toe short and mod- 
eratly lobed; the claws short, depressed and obtuse. 
antarcticus Gray, Genera Birds III. 633. = Podiceps carolinensis Lath. 
brevirostris Gray, Genera Birds III. 633. = Podiceps carolinensis Lath, 
carolinensis Lesson, Traité Ornith. 595. = Podiceps carolinensis Lath. 
lineatus Heerman, Proc. acad. Philadelphia 1854. 178. =^ Podiceps caroli- 
nensis Lath. 
podiceps Baird, Birds N America 898. — Podiceps carolinensis Lath. 
PODOA (Rallidae. — Tuouç pes, wa limbus). Illiger, Prodr. Syst. 1811. 267. = 
Ileliornis Bonn at. 
Rostrum mediocre, crassiusculum,cultratum culmine sensim deflexo, gonyde adscen- 
deute, maxilla sulco laterali lato antrorsum evanescente. Nares concavae, in sulco 
maxillae sitae, membrana tectae, apertura oblonga longitudinali pervia pone medium 
patulae. Synciput plumatum. Alae subtuberculatae, Cauda mediocris lata, depressa. 
Pedes vadantes, breves, validi, tetradactyli , digitis elongatis, lobatis, halluce digiti 
medii phalangem aequante, incumbente. Loma basi scutulatum, excisuris in lobos 
