440 DR. J. D. MACDONALD ON A NEW CIRRIPED. [June 24, 
tained in the cordillera of Chucu. They are marked male and female, 
but do not differ in coloration. 
2. TACHYPHONUS CHRYSOMELAS, sp. nov. (Plate XXXII.) 
Splendide aureus; oculorum ambitu angusto, interscapulio, alis 
et cauda nigerrimis ; remigum marginibus internis et subalari- 
bus, necnon rectricum externarum in pogonio interno limbis an- 
gustis flavicanti-albis : rostro et pedibus nigris: long. tota 4:9, 
ale 2°5, caude 1'8, tarsi 0°65, rostri a rictu 0 5. 
Fem. Olivacea, alis caudaque fusco-nigricantibus olivaceo lim- 
batis; subtus flavicans, lateraliter obscurior ; subalaribus et 
remigum marginibus internis albis. 
Hab. in Veragua. 
This very beautiful little species of Tachyphonus is at once dis- 
tinguishable from all its relatives by its black and yellow colour, 
which reminds one of the most brilliant Icter?. It is of diminutive 
size, being less in bulk even than 7’. ductuosus, which has hitherto 
remained the smallest known species of the genus. Its bill is par- 
ticularly slender and delicate, not much more so, however, propor- 
tionately, than that of Tachyphonus surinamus. 
Areé obtained several examples of both sexes of this bird in the 
cordillera of Chucu. 
3. CHLOROSPINGUS PUNCTULATUS, Sp. nov. 
Supra olivaceus ; alis caudaque fusco-nigris, olivaceo limbatis ; 
pileo toto cum nucha et capitis lateribus nigris ; macula post- 
oculari alba: subtus flavicunti-olivaceus, pectore aurantiaco 
tincto; gutture nigro sparsim punctulato: ventre medio albi- 
cante: campterio alari et subalaribus limonaceo-flavis: rostro 
et pedibus nigris: long. tota 5°2, ale 2°7, caude@ 2°2. 
Hab. in Veragua. 
This Chlorospingus belongs to the group distinguished by a white 
postocular spot, which embraces C. ophthalmicus and its allies. Its 
black head distinguishes it from all these, except C. pileatus (Saiv. 
P. Z. S. 1864, p. 581). In the latter bird, however, the under sur- 
face is of a pale cinereous, with a yellowish pectoral band and flanks, 
and there are no traces of the throat-spots, which render the present 
species easily recognizable. 
Arcé collected several specimens of this new Chlorospingus in the 
cordillera of Chucu. 
5. On an apparently new Genus of Minute Parasitic Cirri- 
peds, between Lepas and Dichelaspis. By Joun Denis 
Macponatp, M.D., F.R.S., Staff-Surgeon R.N. 
(Plates XXXIII., XXXIV.) 
On examining the gills and respiratory appendages of Neptunus 
pelagicus, one of the swimming erabs, occurring in great plenty at 
