Genus— LICHENOSTOMUS. 
Lichenostomus Cabanis, Mus. Hein., 
Vol. I., p. 119, (after Oct. 23rd) 
1851. Type (by monotypy) .. Lichenostomus occidentalis Cabanis. 
Cabanis separated this genus on account of the facial wattle, which is peculiar 
in this series. 
Medium “ Ptiloiis ” with medium bills, long wing, long square tail and 
longish slender legs and small feet. 
The bill is slightly shorter than the head, compressed laterally with little 
expansion at the base; culmen arched and semikeeled, tip a little depressed; 
under mandible nearly straight; interramal space nearly half the length of 
the mandible; nasal groove long, and linear nostril pervious and strongly 
operculate. 
The wing is long with the third, fourth, fifth and sixth primaries longest 
and subequal, the seventh a little shorter; the second primary equal to the 
eighth and only a little longer than the secondaries; the first primary short, 
but more than half the length of the second and less than half the length of 
the third. * 
The tail is long and square. 
The legs are comparatively long and slender, the front of the tarsus 
scutellate, the hind portion bilaminate; the feet are small, the anterior toes 
delicate, and the hind-toe a little stouter and just exceeding the middle toe in 
length ; the inner and outer toes subequal, and with claw longer than the 
middle toe alone ; claws sharp. 
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