We have examined and compared the holotypes, and other specimens used by Howell. [Please select]
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The holotypes of 21 of the 23 nominal species are extant; I have examined 19 of these. [Please select]
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The two holotypes, as well as those of _gaigeae_ and _Malachylodes guttilatus_ agree in color pattern. [Please select]
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Two of these specimens are the holotypes of _Sylvilagus mansuetus_ Nelson and Romerolagus nelsoni Merriam. [Please select]
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On July 16, 1958, at the British Museum of Natural History, one of us (Hall) examined the holotypes of _panamensis_ and _fuscatus_, as well as other materials used by Thomas, and readily perceived the differences that he pointed out. [Please select]
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I have seen the holotypes of all four names and am unable to recognize more than a single species. [Please select]
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