BAC'JT I MOSQUITOES AND THE DANGER OF MALARIA. 263 . 
li. Labium. 
lxe. Labium and Epipharynx. 
mn. Mandible. 
mp. Maxillary palps. 
mus. Muscles. 
mx. First maxilla. 
sal. Salivary duct. 
tr. Trachea. 
x. Space between clypeus and base of proboscis. 
PLATE VI .—Anopheles vnacnlipennis. 
Fig. 1.—Egg seen from the side. a. the float. 
Fig. 2.—Egg seen from upper surface, a. ridge of air-chambers which 
acts as a float. 
Fig. 3.—Very young larval stage, b. brush, c. antennae, d. palp of 1st 
maxilla, e. thorax, /. stigma. 
Fig. 4.—Fully grown larva, b. brush, c. antenna, d. palp of maxilla, 
e. thorax, /. stigma, g. palmate hairs, h. tergum, i. anal papillae. 
Fig. 5.—A palmate hair. 
Fig. 6.—Flabellum or flap which overhangs the base of certain thoracic 
hairs. 
Fig. 7.—Side view of head of a fully grown larva, b. brush, c. antenna, 
d. palp of maxilla, m. hooked hairs at edge of maxilla, p. median 
tuft of hairs, s. large feathered hairs which overhang head, t. 
mandible, u. larval eye, v. eye of adult forming above and behind 
M. 
Abnormality in the Bill of a House-Sparrow. —A 
cock house-sparrow, showing a remarkable abnormality in 
the structure of the bill, was found in March by Mr. E. Syms, 
in a water-butt at Manor Park. The upper part of the beak is 
normal in size and shape, but the lower mandible is nearly two 
inches long and curved, resembling in miniature that of a curlew ! 
The bird was in good condition and the contents of the gizzard, 
consisting of grass, grain, and about thirty small stones, show 
that the difficulty of feeding had been overcome by the sparrow, 
though its manner of taking food is not obvious. It seems 
probable that its unwieldy appendage brought about its untimely 
end, for the cause of death was found to be due to concussion. 
In connection with the abnormality just described, it is interest¬ 
ing to note that in its plumage the bird displays a strong 
melanistic tendencv.—A. Hibbert-Ware, F.L.S., W(instead 
