Overtonia, type species Producta fimbriata Sowerby, 1824, is characterized externally by broad, regularly spaced concentric wrinkles, bearing elongate spine ridges on the ventral valve and quincunxially arranged erect spines on the dorsal valve […]

It was easy to say they'd all get along fine—join other covensteads or live free like most everybody else, but the truth was that joining a covenstead was no easy task, and most wouldn't know what to do with themselves without a witch to serve.

The most notable jetters are the cephalopod mollusks, but scallops, salps, dragonfly nymphs, jellyfish, frogfish, and others use jetting as their primary locomotory mode (Trueman, 1980).

However, we do want to assume that the big ticket is large enough relative to the bundle of resources committed to it so that positive saving on balance ( more saving beforehand than borrowing after ) will be required for feasibility .