The skeletal nature of the cell walls resembles bone-structures made of the unexpanded polymeric material. The ischium, known from a shaft, is unexpanded distally and very well developed. The peristome is simple, unexpanded, acute. All three of these maneuvers have been observed with both expanded and unexpanded ventral pleats. The gills appear closely spaced in unexpanded caps, but usually more distant in old individuals. It has a long snout that tapers moderately, with an unexpanded tip. It is derived from santonica (the unexpanded flower-heads of "Artemisia maritima" var. The toe tips are unexpanded and unflattened; no webbing is present. Llamasoft released "Gridrunner" in 1982 for the unexpanded VIC-20. The unexpanded ZX81's tiny memory presents a major challenge to programmers. The lungs are unexpanded and cannot accommodate the full circulatory volume. Goff placed "Afropolonia" in the tribe Apoloniini due to the sensillae having an "unexpanded" shape. Finally "V" is the unexpanded potential energy by definition depending on internal coordinates only.