590 ZOOLOGY. 
sensitive, leaf-like growths of complicated form. Certain 
bats are known to enter houses, and suck the blood from 
Fig, 512.—Skull of adult sperm whale seen from above and from the side. 00, 
basioccipital bone ; ¢0, exoccipital ; so, supraoccipital ; p, parietal ; 8, squamosal ; /, 
es ; pl, palatine; J, jugal ; sh, stylohyoid ; 54, basihyoid ; zh, thyrohyoid.—After 
ower. 
the extremities of sleeping persons, who awaken to find their 
feet covered with blood. ‘lhe true vampire is harmless. 
