21. There are currently about 200 recognized species of opalines in 5 genera : " Opalina" 22. Successful culturing of opalines in artificial media for periods of 1 month or more has been reported. 23. All opaline glass is hand-blown and has a rough or polished pontil on the bottom. 24. Another surviving example of Gray's work is an etched opaline panel showing a fern gully. 25. Opaline , 85 Avenue A, at Sixth Street, East Village, ( 212 ) 475-5050.26. Siliceous sinter is a deposit of opaline or amorphous silica which appears as incrustations near hot springs and geysers. 27. The authors of that study considered the opalines to be a family ( Opalinidae ) within the order Slopalinida. 28. Some evidence suggests that the life cycle transitions of opalines may be governed by the hormonal cycles of the host. 29. These are white instead of the usual grey, and this allows Opalines to be identified at a very early age. 30. The first two pairings produced six Opalines , all hens, and the third several Opalines, both cocks and hens.
