In the Cyclorrhapha on the other hand, in which the actual pupa is concealed within the hardened larval skin, the imago escapes through a circular orifice formed by pushing off or through the head end of the puparium.
In the opinion of several zoologists it marks the tail-end and not the head-end of the worm.
The excuse from NTL is " lightning strikes on head end " which sounds quite plausible.
Float is made from gray soapstone with wooden plug in circular hole at head end.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.