358 
ON THE CLASSIFICATION OP BIRDS. 
a lateral membrane, which is either narrow, and 
of equal breadth, or dilated into lobes. The natato- 
rial type. 
* F. Chloropus. Selby, ii. pi. 31. atra. Selby, ii. pi. 32. 
Rallus, Linn. Rail. BiU lengthened, slender. Both 
mandibles, in general, slightly curved, and with 
their margins considerably inflected beyond the nos- 
trils. The tenuirostral type. (^fig. 312.) 
R. caesius. Part S. No. 162. neglectus. Part 5. No. 164. 
sanguinolentus. Xb. No. brachypus. Ib. No. 165. 
161. Lewinii. Ib. No. 166. 
superciliosus. Ib.No. 163. albiventer. Ib. No. 167. 
Gallinula, Auct. Water-Hen. Bill short, straight ; 
the margins not indexed. The cutting edges of 
the upper mandible folding over the lower. Gonys 
very short, angulated. Toes simple, without any 
marginal membrane. The rasorial type. 
imiTiaculata.Part 5. No. 168. ecaudata. Part 5. No. 200. 
curvirostra. Ib. No. 169. modesta. Ib. No. 201. 
flavirostra. Ib. No. 170. leucosoma. Ib, No. 202. 
albifrons. Ib.No. 171. 
Alectheliay Lesson. Tail feathers obsolete, or confounded 
with those of the rump, some of which are laterally 
compressed, and all are long, lax, and very sofl.t 
A. lineata. Part 5. No. 172. 
* 1 consider this as only an aberrant species, with the lobes not so muen 
developed, just as we see among the Phaleropes : it may be placed, indeed, 
with Porphi/riOf but has no connection whatever with GaUinula. 
f This extraordinary form is, in all probability, the true type of GoMu 
nula. 
