The other family is that of the Forficulidae or earwigs (q.v.), all of which have the cerci modified as a forceps, while wings of thecharacteristic form described above are present in many of the species.
The forceps are then opened and the beam released, but at this moment the levelling bar F is allowed to drop momentarily by a bent lever G acting on the pin G', until the ends of F press down on a stirrup in each hanger at H, H.
The quest of a solvent for calculus in the bladder and kidneys was pursued by him as by others at the period, and he devised a form of forceps which, on the testimony of John Ranby (1703-1773), sergeant-surgeon to George II., extracted stones with "great ease and readiness."
While the coin is being moved the hanger D is held firmly by the forceps E to prevent the pan from being pushed sideways.
In at least one genus the unjointed pincers of the forceps are preceded, in the youngest instar by jointed cerci.
In the insectivorous type, as exemplified in moles and shrew-mice, the middle pair of incisors in each jaw are long and pointed so as to have a forceps-like action for seizing insects, the hard coats of which are broken up by the numerous sharp cusps surmounting the cheek-teeth.
The cerci in Japyx are not, as usual, jointed feelers, but strong, curved appendages forming a forceps as in earwigs.
4), or, finally, the penultimate segment may be produced into a thumb-like process opposed to the movable terminal segment or finger, forming a perfect chela or forceps, as, for instance, in the large claws of a crab or lobster.
They agreed that there was strong evidence to show that " the contamination took place when the bottle was opened at Malkowal, owing to the abolition by the plague authorities of the technique prescribed by the Bombay laboratory, and to the consequent failure to sterilize the forceps which were used in opening the bottle, and which during the process were dropped on the ground "; and they complained of the inadequacy of the inquiries made by the Indian government, and called for Mr Haffkine's exoneration.