222 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Leucomimus Bryant, Proc. Bost. Soc. N. H., xi, 18G6 (pub. May, 1867), G8, 93 



(Type, Tvrdus dominicus Linnaeus.) 

 Sloliovnmus Bryant, Proc. Bost. Soc. N. H., xi, ISjili (pub. 1867), 68. (Type, 

 Mimvs bahamcnsis Bryant.) 



Large to rather small Mimida:' (length about 200 300 nun.) with 

 hill much shorter than head, tail equal to or longer (often much 

 longer) than wing, middle toe (without claw) much more than three- 

 fifths (usually about two-thirds) as long as tarsus, and with more or 

 less of white on tail and wings, the general coldr grayish above, whitish 

 beneath. 



Bill much shorter than head (exposed culmen shorter than middle 

 toe without claw) ; cidmen gradually curved for at least terminal 

 half, sometimes almost from base; gonys straight or (rarely) very 

 faintly concave sub terminally; maxillary tomium gently (some- 

 times decidedly) concave anterior to middle portion, distinctly 

 notched subterminall}^ Nostril broadly oval or ovate, overhung 

 by membrane, posteriorly nearly if not quite in contact with feather- 

 ing of frontal antife. Rictal bristles well developed. Wing rather 

 long (especially primaries, the longest of which exceed longest second- 

 aries by more than length of exposed culmen), rounded; outermost 

 (tenth) primary usually more than half as long as ninth but less 

 than half as long as eighth,'* the ninth usually intermediate between 

 fourth and third (shorter than third only in M. gracilis) , the seventh 

 and sixth, or eighth, seventh, and sixth, longest. Tail usually longer 

 than wing (not longer only in M. triurus), often very much longer, 

 strongly rounded, the rectrices moderately broad to (relatively) rather 

 narrow, with tips broadly rounded. Tarsus moderate to rather long 

 (a little more than one-fourth to nearly one-third as long as wing) 

 rather slender, the acrotarsium distinctly scutellate; middle toe 

 (without claw) about two-thirds as long as tarsus, sometimes a little 

 less; lateral toes unequal, the inner (without claw) reaching to sub- 

 terminal joint of middle toe, the outer slightly beyond; hallux 

 slightly shorter than inner toe but much stouter; basal phalanx of 

 middle toe adherent for about half its length to outer toe, almost 

 wholly free from inner toe; claws normal as to size and curvature. 



Coloration. — Above gray or grayish brown, with or without darker 

 streaks, the wings w^ith two whitish or pale grayish bands and wdiitish 

 or pale grayish edgings (sometimes with larger white areas), the 

 lateral rectrices with more or less of white; under parts dull whitish, 

 with or wdthout streaks on flanks. Young with chest, etc., conspicu- 

 ously speckled or spotted with dusky. 



a An exception, apparently, is found in M. triurus, of which the single specimen 

 examined has the outermost primary exactly half as long as the eighth. This species 

 is fm'ther aberrant in having the tail no longer than the wing. 



