496 APPENDIX. 



tomiumnonillomaxillce occultum. Mserotun- having the margin hid by that of the upper 

 data. Cauda csqualis. Digitus interims ex- mandible. Wings rounded. Tailexen. In- 

 ferno brevior. ner toe shorter than the external toe. 



Type. — Cynniris Javanica. Zool. Illustr., iii. pi. 121. 



Family, TROCHILID^. 



43. Sub-genus, SELASPHORUS. 



Statura parva. Rostrum subulatum, rec- Stature small. Bill subulate and very 



tissimum. Plumse colli elongatce. Alae breves, straight. Feathers of the neck elongated. 

 debiles, remigibus angustatis aliquandoque Wings short, feeble, the quills narrowed and 

 acutis. Cauda mediocris, gradata, rectricibus sometimes pointed. Tail moderate, gradu- 

 apicem versus attenuatis, mucronatis. ated, the feathers attenuated towards the end, 



their tips mucronate. 



Types 1. S. rufus, Nob. 2. T. chalybeus, Temm. 3. T. ornatus, Auct. 4. T. platycercus, Sw. {Syn. 95), &c. 



Family, CAPRIMULGID^l. 



44. Sub-genus, CHORDEILES. (Generis Caprimulgi.) 



Rostrum Caprimulgi. Rictus leevis. Alae Bill as in Caprimulgus. Rictus smooth. 



caudamcequantes ; remiges nmnes integerrima;. Wings as long as the tail, all the quill feathers 



Cauda forficata. Digitus externus interno entire. Tail forked. Outer toe shorter than 



brevior. U nguis medius serratus. the inner; the middle claw serrated. 



Type. — Chordeiles Virginianus (Caprimulgus Americanus, Wils.) 



Family, TETRAONIDiE. 



45. Sub-genus, CENTROCERCUS. (Generis Tetraonis.) 



Rostrum compressum, culmine verticem ver- Bill compressed, the base of the culmen 



sms prolongato capistrum intersecante. Alee prolonged towards the crown of the head and 

 brevissimce ; remigibus minoribus mucronatis. dividing the frontal feathers. Wings very 



