| Numerous sheet-like refractile and strongly polarizable particles are present within the histiocytes. |
| The number of refractile, ovoid spores was determined by phase-contrast microscopy using a hemocytometer. |
| Each ommatidium contains six to eight sensory receptors arranged under a cornea and refractile cone and is surrounded by pigment cells, which adjust the intensity of light. |
| Viewed using phase microscopy, live cells will appear bright and refractile, whereas dead cells will appear somewhat larger and stained dark with eosin dye. |
| Often the fractured platelike secretions and crystalloid forms were associated with refractile spherical particulate debris. |
| In addition, the testes contained highly refractile cysts that most likely represent degenerating cysts of spermatogonial cells. |
