488 



APPENDIX. 



obsolete emarginatum. Vibrissa? mastacales 

 breves. Pluma? capistri rigidce. Alee breves, 

 rotundatce. Cauda magna, lata, mollis, rotun- 

 data. Pedes magni, validissimi. Tarsi elon- 

 gati. Digiti laterales fere (equates. Hallux 

 magnus digitum medium longitudine fere 



obsoletely notched. Rictus bristled. Frontal 

 feathers rigid. Wings short, rounded. Tail 

 large, broad, soft, rounded. Feet large ; very 

 strong. Tarsi lengthened. Lateral toes nearly 

 equal ; hind toe large, nearly as long as the 

 middle toe. Plumage lax, soft. 



cequans. Pluma? taxes, mattes. 



Type. — Crateropus Reinwardtii. Sw. Zool. III., JV.S., pi. 30. 

 Obs. — The sub-genera appear to be Pomatorrhinus, Grallina, Cinclosoma, and the following one, which latter is 

 clearly the type of Cinclus. The characters of the three former are greatly in want of revision. 



18. Sub-genus, AIPUNEMIA*. 



Rostrum rostro Cincli simile, integerrimum. 

 rectum, basi altum ; gonys ascendens. Nares 

 magnce, nudce, cornea, for amine parvo, lineari, 

 laterali. Alse caudaque brevissimce, rotun- 

 datce. Tarsi longissimi, graciles ; squamae 

 anticse et laterales distinctce ; digitus internus 

 brevis. Ungues parvi, graciles, non multum 

 curvati. 



Hab. in India. Spec. 3, indescriptae. 



Bill, resembling that of Cinclus, entire, very 

 straight ; the base high ; gonys ascending ; 

 nostrils large, naked, corneous, aperture small, 

 linear, lateral. Wings and tail very short, 

 rounded. Legs very long, slender ; the ante- 

 rior and lateral scales divided. ; inner toe short. 

 Claws small, slender, not much curved. 



Inhabits India. Three species, not described. One of 

 these is in the British Museum, the others are at Paris. 



Family, SYLVIAD^. 



19. Genus, ERYTHACA. 



Rostrum basi depressum, lateribus valde 

 compressis ; gonys subascendens. Vibrissa? 

 mastacales, longce, debiles, divergentes. Tarsi 

 elongati, graciles caligati (i.e. squamis indi- 

 stinctis) ; digiti laterales, (equates. Cauda 

 divaricata, rectricibus mucronatis. 



Bill depressed at the base ; sides much 

 compressed ; gonys slightly ascending. Rictus 

 with long, weak, diverging bristles. Tarsi 

 lengthened, slender, the scales undivided ; 

 lateral toes equal. Tail divaricated, the tips 

 of the feathers pointed. 



Type. — Sylvia rubecula, Auct. 



Obs. — I am not, at present, prepared to offer any opinion on the extent of this genus, which seems to be the Fissi- 

 rostral group of the Saxicolince. Sialia and Petro'ica are probably two of the sub-genera, the first distinguished by 

 the structure of the wing, the other by that of the foot. Sylvia rubecola may possibly constitute the passage to the 

 genus Saxicola. 



* Th. asffu; alius, et xvnpii tibia. 



