On Loan 29 Nov 1957 (Holt); Alc Portion Apparently Still With Holt, 28 Jul 1983
Perry Holt made a slide from this lot, USNM 17665 but only mark the slide with his slide number, 2541 and subsequently this slide got a new number USNM 1588719. It was not until Holt's collection files were reference that it was known that those specimens were removed from this lot.