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Systematics and natural history of the mygalomorph spider genus Antrodiaetus and related genera (Araneae: Antrodiaetidae)
By Frederick A. Coyle
Bulletin of the Museum of Comparative Zoology Vol 141 (6): 269-402, 1971
Cite: 726498 with citation markup [cite:726498]

"Harvard University, Vol 141..."
should be rather "Bulletin of the Museum of Comparative Zoology 141(6): 269-402" or perhaps a shorter form, like 'Bull. Mus. comp. Zool.' -- see abbr. options here
i would also suggest using capitalization consistent with the scientific citation practice, in this case "Systematics and natural history of the mygalomorph spider genus Antrodiaetus and related genera (Araneae: Antrodiaetidae)" (no colon after 'spider' in the title)

 
Fixed
Thanks v!