22 



Mr. Gould exhibited, in continuation, the Fissirostral Birds of 

 Mr. Darwin's collection, recently presented to the Society, and 

 characterized from among them the following new species : 



Caprimulgus bifasciatus. Cap. nigro, fusco, et fulvescente 

 ornatus ; caudd albo bifasciatd, fascia terminali lata: primd 

 angustd ; primariis nigrescentibus fascia angustd alba admedi- 

 tim : alis spuriis macula alba notatis ; gutture lunula albd ; 

 secondariis tectricibusque alarum macula fulvescente ad apicem ; 

 crisso pallide rufescente ; rostro pedibusque fuscis. 



Long. tot. unc, 9| ; ala, 6^ ; caudce, 5 ; tarsi, |. 



Caprimulgus parvulus. Cap. intense fuscus, guttis minutis 

 cinereis ornatus ; vittd rufd cervicem cingente ; gutture scapu- 

 laribusque ad marginem, secondariis ad apicem stramineis ; 

 pectore et abdomine lineis fuscis Iransversis ; primariis nigres- 

 centibus, tribus fasciis incequalibus pallide rufescentibus ; catidd 

 fasciis pallide fulvescentibus et fuscis omatd. 



Long. tot. unc, T^; alee, 5; caud<E, 4 ; tarsi, ^. 



HiRUNDO FRONTALIS. Hir. vcrticc plumis auricularibus dorso 

 et lunuld pectorali nitide cceruleo viridescentibus, notd albd super 

 nares, guld corporeque siibtus albicantibu^, crisso fiiveo, alis cau- 

 ddque fuscis viridi tinctis, rostro nigro, pedibus intense fuscis. 



Long, tot 4J unc. alee, 4^; cauda, 2; tarsi, ^. 



Hab. Montevideo. 



HiRUNDO coNCOLOR. Hir. nitide ccerulescenti niger. 

 Long. tot. 5f unc. alee, 5 ; caudee, 2| ; tarsi, ^. 

 Hab. in insulis Galapagorum. 



Halcyon ervthrorhynchus. Halc.vertice plumis auricularibus, 

 et nuchdfuscescenti-cinereis, gtdd pectore et abdomine medio albis, 

 lateribus abdomine imo crissoque castaneis, alis humerisque nigris 

 secondariis ad marginem dorso medio tectricibusque caudce metal- 

 lice viridibus, cceruleo tinctis, caudd ceeruled superne, subtus fus- 

 ed, rostro pedibusque rubris. 



Long. tot. 7| unc. ; rost., 2; alee, 3|; caudee, 2^; tarsi, ^. 



Hab. in insult St. lago. 



