. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. The o\ca Lineage: Subdigital Fine Structure ⢠Peterson and Williams 231. Figure 11. The setae in A. chrysolepis. a) Is taken on the eighth lamellae (scale 20) adjacent to the distal margin (the material below the spatulae is debris), b) Is taken on scale 28 just distal to the metatarsal-phalangeal joint. The setae on scales 28 and 30 are slightly narrower than on the lamellar scales ( ± /x compared to ± /x; the height of the spatula is not different), and the stalk is less tapered and thicker jus
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. The o\ca Lineage: Subdigital Fine Structure ⢠Peterson and Williams 231. Figure 11. The setae in A. chrysolepis. a) Is taken on the eighth lamellae (scale 20) adjacent to the distal margin (the material below the spatulae is debris), b) Is taken on scale 28 just distal to the metatarsal-phalangeal joint. The setae on scales 28 and 30 are slightly narrower than on the lamellar scales ( ± /x compared to ± /x; the height of the spatula is not different), and the stalk is less tapered and thicker just below the spatula. The difference in density of setae is an artefact of the sites chosen. mellae of generalized anoles. There is no evidence of small keels or bosses like those of annectens. The surface of these scales is covered with setae (Fig. 11). The orientation and height of the setae are comparable to those of annectens, but the stalk diameter ( ± ^t at the midpoint) and spatular dimensions (base [width] ± m; height [length] ± ^xâ area ± sq ^x) are larg- er. The chrysolepis measurements are un- usually large for Anolis. The dimensions in annectens are similar to those of West Indian anoles investigated by us and by Ruibal and Ernst (1965). b) Proximal and distal to the lamellae there are unspecialized subdigital scales (Figs. 10, 12). These have a fairly robust rounded distal margin and a velvety sur- face texture. Mechanoreceptors occasion- ally occur along their distal margins. The shape of these scales is highly variable. The series of scales proximal to the pad continues beyond the metatarsal-phalan- geal joint and into the sole of the foot. Scales with these gross characters occur proximal and distal to the pad in most anoles we have examined. There is a poor correlation between this gross morphology and the fine struc- ture of the scale. In chrysolepis the scale series proximal to the pad (scales 23-29 a
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