Allen on the genus <I>Cyclorhis</I>

382

^Recent Literature. [Octohe,.

The

^collection was

made

during theyears 1SS5and 18S6 byDr. II II

Rusby, "the well-known botanist,"

who "made

ajourneydiagonallyacro.-s

northern Bolivia,starting atAricain Chili and proceedingthence north- eastwardtothe headwaters of theRio Madeira, and thence

down

thisriver tothe northern border of Bolivia."

The number

ofspecimenswas about 400, representing 267 species,about125 ofwhich are addedto the list of previously

known

Bolivian birds, while no less than 13 are apparently

new

to science.

A

completelistof the species^is given,with critical anno- tations

when

they

seem

called for, while Dr. Rusby's very interesting field-notes are givenin bracketsandarefollowed bythe initial 'R\

The new

species and subspecies described are the following:

— ^Em-

pidonax boliviaxus, Cliiroxiphia pareola boliviano., Unicornis stria/a, Leptasthemirafnscescens,Leptasthcnurafuliginiceps boliviano.,Synallaxis griseiventris, Anabazenops immacnlatus, Picolaptes ob/ect/es,* A/yrmo- chanes (gen. nov.) //vpo/eucus,

Conopophaga

rnsbyi, P/ilogopsis notata, and Scvtalopus bolivianus.

The

annotatedspecies are the following:Atticora cyanolciica

montana

Baird, thesubspecificcharacters originally ascribedtowhich are distinctly seen in the Bolivian bird; Ccerebacienilea(Linn.), Bolivianspecimens ofwhich

"have

the bill very short and slender, shorterand smaller even than Bogota specimens .... labelled Ccerebaccerulea microrkyncha by Berlepsch";

Eupkonia

laniirostris Lafr.

&

D'Orb.,which differs "from Bogota specimens {E.crasstrostris Scl.) in havingthebill

much

^smaller,

theyellowof thecap

much

deeper (orange yellow),"and in other partic- ulars; Paroaria gulariscervicalis (Scl.),P.cervicalisScl. being'•doubt- lessonlya local form of P.gularis" towhich Mr. Allen thinks /'.copi- tata (D'Orb.

&

^{Lafr.) also probablyreferablein the}

same manner;

Pac/iy-

rhamphus

niger Spix,a specimenof which"is

much

blacker below, with lesswhite onthe scapulars, wings, andtail thaninBrazilian and

Cayenne

birds"; Lathria

plumbea

(Licht.), if not L. cinerea (Vieill.). which Mr.

Allen regards as doubtfully separable; Cinclodes rivularis (Cab.), the complicated

synonymy

of which is disentangled; Formicarius anaIis (Lafr.

&

D'Orb.), a specimen ofwhich agrees essentially with the type;

Pteroptochos albifrons Landb., which Mr. Allen regards,and

we

believe correctly, as a

"'good

species,'or at least as notreferable to ^6'. magel-

faniens"^'; Hvlactes castaueus Phil.

&

Landb., the

young

of which i->

described;

Trogon

collaris Vieill., a male ofwhich is described; Gal- balcyrhynckus leucotis

Des

Murs, the single specimen having the bill

"about 7

mm.

longer thanthe

maximum

given by Sclater in his

mono-

graph of the family."

—

^R.R.

Allenonthe

Genus

Cyclorhis.

— Three

times within the space offive years hadthisgenus been 'monographed': by

Mans Gadow

in iSS^,!by

*This, however, froman unknown locality,the type belongingtothe Lafresnaye collectioninthe

Museum

cftheBoston SocietyofNaturalHistory.

tIn 'CatalogueoftheBirdsinthe BritishMuseum,'Vol. VIII, pp. 316-321.

1S90.] Recent Literature.

3^3

Dr. Sclater in 1SS7,^* and

Count

von Berlepsch in iSSS:t but in each casewithonlypartiallysatisfactory results,

owing

inlarge partto lackofa sufficient

number

ofspecimensto

show what

limitofvariation inany one form should be allowed forindividual variation. Happilythisdeficiency, in thecase ofonespeciesat least (

C

viridis),

was

supplied

by

material which

came

into Mr. Allen'shands while the subject was fresh, thus en- abling

him

to supplement theefforts ofhis predecessorsbya

much more

elaborate paperj.

The

additional materialwhich enabled Mr.Allen to obtain the clue to individual variation in species of this genus formed partof the

"Smith

collection of Brazilian birds, recently purchased by the American

Museum

of Natural History."and embraced no less than 46 specimensof C. viridis.

"These

specimens, while presenting great variations in respectto coloration, size, and particularly in the sizeand colorof thebill,areobviouslyreferable to a singlespecies, the two ex- tremes of the seriesbeingcompletelyconnected byintermediate phases."

Mr. Allen further observes that "while there is evidentlyawide range of individualvariation, in coloration as in the size of thebill,

much

of the very great variation in

plumage

^is unquestionably due toseasonand age"; buthe savs "there isno apparentdifferencein the sexes, exceptthat the females are found on

measurement

to averageslightly smallerthan the males."

By

the aid of thismaterial and specimens fromother sources Mr. Allen was enabled to satisfactorily separate and define C. viridis (Vieill.) from C. ochrocephala Tsch. and properly allocate their syn-

onymy,

and give satisfactoryreasons for considering C.cearensis Baird, C.wiediiPelz.^,C.albiventrisScl.

&

SalV.,and C. altirostrisSalv. as

mere synonyms

of C. viridis (Vieill.). Mr. Allen's critical remarksare not, however,confined to C. viridisand C. ochrocephala, but having in hand

"much

other authentic material ^{. ..} making, with the large seriesof the

American Museum

ofNatural History, 123specimens, and representingall thespecies of the genusexcept C. atrirostris Scl.," afewobservations on other species ofthe genusare added. These are

(i)C

flavipectus Scl.,

which

name

isrestricted to specimens from

Colombia;

(2) C. flavipectus subjlavcscens(Cab.),fromCentral America; ₍₃₎ C. flavipectus trinitalis subsp. nov., fromTrinidad; (4) C.Jlaviventris Lafr., from southern

Mex-

ico, southern Yucatan, and Guatemala; (5) C.Jlaviventris yucatanevsis Ridgw., from northern Yucatan; (6) C. insularisRidgw., from

Cozumel

Island;_{(7) C.}guianensis(Gm.), from

Guiana

and Amazonia.

The

forms ofthisgenusarethus for the^firsttimetreated from thestandpoint of

mod-

ernnomenclature, trinomial designationsbeingappliedtothosewhichare foundtointergrade with others.

The

extent towhich this reduction of

*Remarks ontheSpeciesof theGenus Cyclorhis. Ibis, fifth series, Vol. V, July 1SS7TPP.320-324, pi.x.

tOn

theGanus Cyclorhis,Swains. Ibis,fifthseries,Vol. VI, Jan. 1888,pp.83-92.

I

On

Cyclorhis viridis(Vieill.)and ^itsAllies, with Remarkson other speciesof the GenusCyclorhis. Bull.Am.Mus. ^Nat.Hist.Vol.11, No.3, June, 1889, pp. 123-135, figs.1-7.

3§4

^Recent Literature. [October

supposed species tothe rank ofgeographical racesor subspecies

may

he furthercarriedis not vet

known,

but the material

examined

by Mr.Al- lenforeshadowsstillfurther reduction. For example, "the

Cayenne

form

known

as C. guianensis," saysMr. Allen, "probably will be found to grade into C. viridis through a paler race representing the species in northeastern Brazil, ^{. . .} forwhich Baird's

name

ccarensis {—albiventris) would be available. In short, it seems probable that thewhole group centring about _C.Jiavipectus, including not only its several recognized subspecies but C.guianensisand C. viridis, andpossibly also C.flaviven- tristhrough itssouthern forms,*will be found,

when

ample material for the study ofthe genushasbeen gathered, to imperceptibly blend."

The

articleis supplementedby Mr. Allen's"present impressionsof the status, relationships,and distribution ofthe various forms ofCyclorkis"

concludingwith an excellentkeytothe species.

—

R. R.

Allen's Descriptions of

New

^South

American

Birds.

—

Eight

new

speciesandsubspecies,belongingtovariousfamilies,aredescribedin this paper,fas follows: (i) Thryothorus macrurus, Bogota; {-)7\ ^longipes,

Ambato.

Ecuador; ₍₃₎ Platyrhynchus bifasciatus,Chapada, MattoGrosso, Brazil; (4) P.insularis,

Tobago

; (5) Euscarthmusochropterns,Chapada, Matto Grosso; (6) Sublegatns virescens,

Chapada;

₍₇₎

Empidonax

lazv- rencei(

=

Oct//<vcaflaviventrisLawr.);(S) Thamiiopthilusdoliatusmcxica- nus

(=7-

affinis, Cab.

&

Heine, pre-occupied).

The

"remarks"

on

other species refer tothe following: (1) Thryotkorus ^"mysticalis" ofthe

Rusby

Collection,which proves to be "probablya large, very strongly colored exampleof T.genibarbis, or elsean undescribed form"

somewhat

inter- mediate betweenthe latterand T. mysticalis; (2) Porphyrosfiza c&rules- cens (Max.), this being the correct

name

for the birdusually called P.

cyanella (Sparrm.); ₍₃₎ Mccocercnliis uropygialis Lawr., a specimen of which, "saidtohave been collected at a point thirtymiles north of Bo- gota" isin the collection of the

American Museum

of Natural History,

"thusgreatlyextending the rangeof the speciesto thenorthward"; ₍₄₎ EuscarthmuspelzclniScl.,asecondspecimenofwhich isin thecollection, from Cuyaba, Matto Grosso; (5)

Habrura

superciliaris(Wied), beingthe speciesusuallycalled

H.

pectoralis (Cab.

&

^Heine); (6)

Habrura minima

(Gould), very generally

synonymized

with

H.

pectoralis, but restored to specificrank_J; (7) Phyllomyias incanescens (Wied),

which

is

now

first referred to itspropergenus, beingthe Muscipe/a incanescens of Wied.ot

which Pkyllomyias berlepscki Scl. isa

synonym;

(S) Ornithion cineras- ccns(Wied), beingthe birdusuallycalled O. obsoletum{Muscicapaobsolcta

* Unfortunatelyweare not informedwhat these"southernforms"of C.fiaviventris are!

fDescriptions of

New

SpeciesofSouthAmerican Birds,witli Remarks on various otherlittleknownspecies. Bull.Am. Mus. Nat. Hist.Vol.II,No._3,June, 1889,pp.

I37-I5I-

Jlna

"Note on theTypeofthe Genus Habrura Cab.

&

Heine," on p.147, this speciesisshowntobe the type, instead ofH.pectoralis, asgivenbySclater.