586 MR. O. SALVIN ON NEW BIRDS FROM CostTA rICcA. [Nov. 8, 
This is the first species of this genus having the crissum black : in 
all others, including its close ally, that part is pure white. 
16. SELASPHORUS FLAMMULA, Sp. 0. 
S. supra aureo-viridescens : subtus gula tota cum mento rosaceo- 
rubidis, coruscantibus : pectore sub gula picta, et ventre medio 
albis: lateribus cinnamomeo viridi mixto lavatis : alis obscure 
purpurascenti-nigris: caude rectricibus (duabus mediis exceptis) 
nigris, harum duarum utrinque extimarum sordide albo termi- 
natis, poyonio interno cinnamomeo medialiter marginato, extima 
angustiore ; tertie utrinque pogoniis ambobus fere ad apicem 
cinnamomeo marginatis ; quarta similiter ornata, pogonio in- 
terno angustiore; duabus mediis viridescentibus cinnamomeo 
Sere ad apicem marginatis, harum et proximarum utrinque api- 
cibus cuneatim excisis: rostro et pedibus nigris. 
Long. tota 2°9, ale 1°6, caudee 1°1, rostri a rictu *7. 
Selasphoro platycerco, Sw., ex Mexico et Guatemala nonnihil simi- 
lis, sed statura minore et rectricum coloribus distinguendus. 
Hab. Costa Rica (Volean de Cartago). 
The single specimen in the collection has the throat somewhat 
faded. Ina freshly moulted bird it would approach S. platycercus 
in brilliancy. 
17. ODONTOPHORUS MELANOTIS, sp. 0. 
O. supra obscure castaneus, lentiginibus nigris minute maculatus : 
regione interscapulart, alarum tertiariis et tectricibus majoribus 
terminum versus plumarum nigro distincte fasciatis, tectricibus 
omnibus macula albida terminatis, alarum remigibus in pogonio 
externo nigro et castaneo equaliter vittatis : pileo toto et corpore 
subtus a gula ad medium ventrem castaneis, illo fronte et super- 
ciliis dilutioribus, pileo versus nucham saturatiore: gula tota 
cum tectricibus auricularibus nigris : cauda lentiginosa : ventre 
imo cum crisso et tibiis nigro et castaneo fasciatis: rostro 
nigro, pedibus obscure fuscis. 
Long. tota 8, alee 5°75, caudze 2°5, tarsi 1°75, rostri a rictu °8. 
Hab. Costa Rica (Tucurrique). 
Similis O. erythropi, Gould (P. Z.S. 1859, p. 99), sed regione 
suboculari nigra, non rufa, distinguendus. 
A close ally of the bird described by Mr. Gould from Ecuador ; but 
the entire absence of the conspicuous markings of the side of the 
head in that bird seems to warrant its separation. 
Professor Huxley read a memoir ‘‘On the Structure of the Skull 
of Man, the Gorilla, the Chimpanzee, and the Orang-Utan, during 
the period of the first dentition.” Professor Huxley’s deductions 
were based upon materials contained in the British Museum, the 
Royal College of Surgeons, and in particular upon the original spe- 
cimen of Tyson’s ‘‘ Pigmy,” which had been submitted to his exa- 
mination by the directors of the museum at Leeds, 
This paper will be published entire in the Society’s ‘ Transactions.’ 
