On the Protrusion of the Tongue of the Anura. 501 
irrorated with red, the thickness of the irrorations giving a 
dark shade to the costa, and broadly so to the outer marginal 
border; a black dot at the end of cell; antemedial and post- 
medial transverse brown To or thin bands, nearly erect but 
very sinuous, almost zigzag; the disc with three rows of very 
fine black points, not oe visible to the naked eye: hind 
wings ochreous grey, outer margin broadly smeared with dark 
red-grey ; an indistinct sinuous medial brownish line; cilia of 
both wings with the inner half orange, the outer half white, 
divided by a brown line: underside “brownish grey, whitish 
on the hinder border of fore wings; a sinuous, indistinct, 
brownish discal line across both wings. 
Expanse of wings 48, inch. 
Sarawak, Borneo. 
Rather variable in shades of colour; some of my very 
long series are much paler and yellowish, nearly all the 
females are paler and more yellow than the males. 
There is one example in the B. M. from Borneo unnamed. 
Allied to &. ochretpennis, Moore, and £&. transversa, Moore. 
Rhesala levis, nov. 
o. Pectus white; top of head and fore part of thorax 
whitish, rest of thorax and fore wings shining pink-grey, with 
an ochreous tinge, with sparse grey irrorations; a black dot 
at the end of cell; two indistinct blackish transverse discal 
lines, with some black dots on them; blackish points also 
close on the veins to the outer margin; cilia ochreous grey, 
with pale ends: hind wings pale ochreous grey, darkest on 
the outer half; cilia pale pink, with white ends: underside 
of a uniform pale ochreous grey, shining, without any 
inarkings. 
Expanse of wings IL inch. 
Coomoo, Queensland. 
‘There is an example of this species unnamed in the B. M, 
from West Australia (Quadrifide, drawer 224). 
[To be continued. ] 
LXIITI.— The Mechanism of the Protrusion of the Tongue of the 
Eee eT LE Note. By Prof. Marcus Hartoe, 
NIAC Lc. sull danse: 
For an explanation of the mechanism whereby the Anurous 
Batrachia protrude and reverse their tongue one may seek in 
* Translated by the Author and slightly modified. Irom the ‘ Comptes 
Rendus de l’Académie des Sciences,’ March 4, 1901. 
