LIBRARY OF THE

UNIVERSITY OF ILLINOIS

AT URBANA-CHAMPAIGN

590.5
FI

V.39
cop. 3

NATURAL HISTORY.
SURVEY

FIELDIANA: ZOOLOGY

A continuation of the

ZOOLOGICAL SERIES

of

FIELD MUSEUM OF NATURAL HISTORY

VOLUME 39

NATURAL HISTORV PURVEY

FEB 11 1971

LIBRARY

FIELD MUSEUM OF NATURAL HISTORY
CHICAGO, U.S.A.

•g FIELDIANA • ZOOLOGY

Published by
CHICAGO NATURAL HISTORY MUSEUM

Volume 39 February 28, 1958 No. 11

THE RACES OF THE SHRIKE
Lanius validirostris

Austin L. Rand

Cbibp Curator, Dbpartmbnt op Zoology
AND

D. S. Rabor

Research Fellow in Zoology and Field Associate

John Simon Guggenheim Memorial Foundation Fellow in Zoology

Lanius validirostris is an endemic mountain shrike of the
Philippines. Hitherto it was known from three, widely separated
mountain areas, each population representing a different subspecies.
The collecting of one of us, Rabor, in western Mindanao brought
to light another population, representing yet another subspecies.
This we name:

Lanius validirostris quartus, new subspecies

Type. — Chicago Natural History Museum no. 227258 from Du-
minagat, 5300-5500 feet, Mt. Malindang, Zamboanga, Mindanao.
Adult male collected April 4, 1956, by D. S. Rabor.

Diagnosis. — Wing length as in L. v. validirostris but bill larger;
upper parts darker gray; pale area on forehead and pale superciliary
less conspicuous, almost obsolete; center of breast and abdomen
whiter (less tinged with bufFy) ; undertail coverts white (not strongly
tinged with buffy) ; and flanks richer and deeper rufous.

Measurements. — Wing 93.5; culmen 22 mm.

Range. — Known from the type only, from Mt. Malindang at
5300-5500 feet.

Remarks. — The four known races are as follows:

1. L. V. validirostris Og.-Grant, 1894; Luzon highlands. Wing

cf 89, 89, 90; 9 84, 85. Culmen cf 20, 21.5, 21.5; 9 19.5,

19.5 mm.

Library of Congress Catalog Card Number: 58-9215
834 "^^*'^ 85

ilj^.^o. OFlh

86 FIELDIANA: ZOOLOGY, VOLUME 39

2. L. V. tertius Salomonsen, 1953; highlands of Mindoro. Like
(1), but smaller and with flanks, crissum and undertail
coverts deeper and darker; breast and abdomen more washed
with pale rusty (ex Salomonsen). Wing cf 83; 9 81 mm.
(ex Salomonsen).

3. L. V. hachisuka Ripley, 1949; Mt. Apo, Mindanao. Like (2)
above, but larger, and breast and abdomen heavily washed
with rusty; size as in (1). Wing cf 88; 9 88. Culmen cf 21;

9 19.5 mm. (lent by Dr. Ripley).

4. L. V. quartus, new subspecies; Mt. Malindang as above.

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