18 



Trochilus angustipennis. T. rostro quum caput pauluUim lon- 

 giore ; caudd levifer furcatd, hiijus recti-icibiis, necnon remigibus 

 alarum, valde arctis : capite corporegue stiprd intense (eneo-viri- 

 dibus ; guld et corpore subtus, plumis albis analibus exceptis, aureo- 

 viridi metallice relueentibus ; alts cauddque intense purpureis. 



Long. tot. 3i unc. ; rostri, |; alee, 1|; caudce, 1|. 



This small-sized species has the wing and tail-feathers narrower 

 than usucil. 



Trochilus parvirostris. T. rostro parviusculo, ncuto, qudm ca- 

 put breviore ; caudd leviter furcatd , mediocri, rectricibus sub-latis : 

 capite corporegue supra aureo-viridibus, in obscurum transeuntibus ; 

 frontis plumis ochreo pallida lavatis ; corpore subtus flavescenti- 

 albo ; gula plumis singulis maculd obscurd ; abdomine sordide 

 ochreo, plumis singulis maculd magnd, obscure viridi ; plumis 

 analibus albis ; crissi plumis obscuris, apicibvs albis ; caudce rec- 

 tricibus, aneo-viridibus suprci, subtiis aureo-ceneis, scapis albis ; 

 rectricum tribus utrinque externis, lined centrali albd, in externd 

 utrinque hdc lined extensa, fere ad marginem ; alis obscuris, pur- 

 purea subtus, paululilm relueentibus. 



Long. tot. 4i unc. ; rostri, i ; alee, 2| ; caudce, 2. 



This is in all probability a young bird, or perhaps a female of some 

 species, the male of which remains to be discovered ; the yellow 

 white, or cream-colour of the lower part of the throat, extends in a 

 narrow line across the back of the; neck. 



Trochilus flavicaudatus. T. rostro quum caput duplh longiore, 

 et arcuato ; caudd mediocri : capitis vertice obscure fusco ; corpore 

 suprci aureo-viridi, corpore subtiis ochreo ; gulce plumis punctis 

 aureis et cupreis ; pectoris lateribus maculis aureo-viridibus, or- 

 natis ; crisso pallide ochreo ; rectricibus caudce duabus intermediis 

 aureo-viridibus, reliquis ochreis, apicibus viridibus ; remigibus 

 alarum obscuris, putpureo relueentibus ; rostro nigra ; pedibus su- 

 pra nigrescentibus, subtiis pallidis. 



Long. tot. 4| unc. ; rostri, 11 ; alee, 2\ ; caudce, 1|. 



Trochilus melanogenys. T. rostra qudm caput vix longiore ; 

 caudd sub-brevi, rectricibus mediocriter latis, et acutis : capite et 

 corpore supra aureo-viridibus ; corpore subtus ex-ochreo-albo ; 

 abdominis lateribus rufo lavatis ; genis nigris ; lined flavescenti- 

 ulbd pone oculos ; j)lvmis gulce singulis notd ad apicem nigrd, 

 notis lineas longitudinales efficientibus ; abdomine, obscure, aureo- 

 viridi guttata ; caudd supra nigrescente, ceneo tinctd, apicem ver- 

 sus nigrd purpurea rehtcente, et rectricibus flavescenti-albo, dua- 

 bus intermediis exceptis, terminatis ; alis obscuris, vialaceo relu- 

 eentibus ; mandibulce inferioris basi, pedibusque flavis. 



Long. tot. 3| unc. ; rostri, |; ala, 3|; caudce, If. 



Trochilus TYraAxxHiNus, Loddiges' MSS. T. rostro acuta, caput 

 langitudine equante ; caudd mediocri, vix furcatd ; rectricibus la- 



