232 Mr. D. G. Elliot on 



his oehrascenti marginatis, minimis externis virescenti-cyaneo 

 lavatis ; tectricibus primariorum remigibusque saturate brunneis, 

 extus sordide viridi lavatis ; dorso postico et uropygio argente- 

 scenti-cyaneis ; supracaudalibus et rectricibus saturate brunneis 

 viridi lavatis ; gula alba ; corpore reliquo subtus cum subalaribus 

 ocbrascenti-fulvis ; remigibus infra fuscis, intus pallide ochraeeo 

 marginatis. Long. tot. 12, culm. 1*05, alse 6-35, caudle 4*7, 

 tarsi 0-9. 



A second example has the tail reddish, with remains of 

 dusky margins to the feathers of the under surface and the 

 collar on the hind neck : these markings are a sign of im- 

 maturity in the Dacelonine group of Kingfishers. The dif- 

 ference in the red and dusky green tails exhibited in Clyto- 

 ceyx sufficiently demonstrates the affinity of the new genus 

 to the genus Dacelo, and more especially to Dacelo Gaudi- 

 chaudi. 



XXX. — On Cynanthus bolivianus, Gould. 

 By D. G. Elliot, F.R.S.E. &c 



In the Ann. & Mag. Nat. Hist, for June, p. 488, Mr. Gould 

 has described a species of Cynanthus, brought by Mr. 

 Buckley from Bolivia, as distinct from C. mocoa, under the 

 name of C. bolivianus, basing his specific characters on its 

 " smaller size," its " brighter metallic green," and its tail 

 " more of a brilliant steel-blue than a vivid green." Being 

 somewhat surprised that I and other ornithologists had 

 overlooked a new species in our collections of so exceptionally 

 conspicuous a form, I re-examined my series of C. mocoa, in 

 order to endeavour to distinguish this new species from amongst 

 my specimens, with the following results. Ten specimens of C. 

 mocoa were available for the investigation, among which were 

 those brought by Buckley from Bolivia and Ecuador, others 

 from Peru procured by Jelski, and one specimen from Mr. 

 Gould's collection, the locality doubtful. Those from Bolivia 

 are from the same lot from which Mr. Gould obtained his C. 

 bolivianus, and came from the Chairo road, between La Paz 

 and Yungas. There are several of these in my collection ; 

 ample to show any specific difference, did it exist, from 

 Ecuadorian specimens. In the general size of the birds from 

 all the localities there is no appreciable difference. Mr. Gould 

 gives the total length of the Bolivian bird as 6*3 inches, 

 culmen 8 - 7, wing 2*6, tail 4*1, tarsus 0*2 ; and the Ecuadorian 

 as 8 inches, wing 3, tail 5*5. My specimens (from Baiios, 

 Ecuador, Buckley) measure as follows : — 



