1878 A. S. Packard (ed. 6) 622 The sucker or collophore, as it may be termed.
1903 Nov. 260/2 Ventral view of p[odura] aquatica, showing the mouth, the collophore, and the ‘spring’ in its normal position.
1942 S. W. Frost v. 78 The first abdominal segment bears a ventral tube (the collophore).