Classifications
pseudocylindric
Graticule
Meridians: Central meridian is a straight line half as long as the equator. Other meridians are equally spaced portions of parabolas concave toward the central meridian.
Parallels: Equally spaced straight parallel lines. Perpendicular to the central meridian.
Poles: Points.
Symmetry: About the central meridian or the equator.
Scale
Correct along equator. Constant along any given latitude; same for the latitude of opposite sign.
Distortion
Free of distortion along equator. Distortion is low along central meridian.
Similar projections
Practically identical to uninterrupted Boggs eumorphic.
Similar to sinusoidal, Craster parabolic, many others.
Origin
Presented by Reinholds V. Putniṇš, 1934.