. Breviora. 1994 GRENADA BANK SPHAERODACTYLUS 13. Figure 3. Scenarios for the dispersal and deployment of Sphaerodactylus of the vincenti-kirhyi-molei complex. Only the banks, which are islands at glacial maximum, and the continental shelf, mainland at glacial maximum, are shown. SA is South America. G is Grenada; V, St. Vincent; L, St. Lucia; M, Martinique; and D, Dominica. Some small banks, now submerged, but potentially important islands at glacial maximum, are shown. A is elaborated from the notions of Schwartz (1964) and B derives from the view of King (1962). analysis fails to satisfacto
. Breviora. 1994 GRENADA BANK SPHAERODACTYLUS 13. Figure 3. Scenarios for the dispersal and deployment of Sphaerodactylus of the vincenti-kirhyi-molei complex. Only the banks, which are islands at glacial maximum, and the continental shelf, mainland at glacial maximum, are shown. SA is South America. G is Grenada; V, St. Vincent; L, St. Lucia; M, Martinique; and D, Dominica. Some small banks, now submerged, but potentially important islands at glacial maximum, are shown. A is elaborated from the notions of Schwartz (1964) and B derives from the view of King (1962). analysis fails to satisfactorily resolve relationships within the spe- cies group. There is simply no rational way of assigning polarities to the relevant characters. One may assume that small, granular dorsals are primitive in Sphaerodactylus, and larger granules, eventually evolving to imbricate scales, are derived. Barbour (1921) explicitly stated this and King (1962) followed suit. Accepting this notion would mean I could assume with facility that the large scales of kirbyi (and those southern Martinique forms of vincenti) are derived within the vincenti complex. Common sense, in com- bination with knowledge of habitat and of evolutionary trends in other lizards, leads me to reject this notion in this case. Large scales seem to be selected for in dry habitats (MacLean, 1985).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University
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