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4 results for “Cottoidea”
FIG. 3 in Taurus of the Tidepool? Inferring the Function of Cranial Weapons in Intertidal Sculpins (Pisces: Cottoidea: Oligocottinae)
FIG. 3. Phylomorphospace of preopercle shape for Oligocottinae. Each colored dot represents the average preopercle shape for a given species. The fill color of each dot reflects the average rFA of that species. The outline color of each dot represents the kind of allometric trajectory of each species (color follows that of Fig. 2). The shape change captured by PC1 and PC2 is represented by transformation of a model of the average shape of the preopercle in Oligocottinae, with a TPS transformation grid overlaid. A CT reconstruction of the left preopercle from an average specimen of the species that occupies the extreme values of each PC axis is placed near the species location in morphospace, with a dashed gray line connecting the preopercle to the point representing its species. Clockwise, from the top, the illustrated specimens are: Clinocottus acuticeps (UAM 47689, 44.00 mm SL), Chitonotus pugetensis (OS 5269, 92.95 mm SL), Artedius corallinus (SIO 51-34, 59.84 mm SL), and Clinocottus recalvus (SIO 51-249, 59.00 mm SL).
FIG. 2 in Taurus of the Tidepool? Inferring the Function of Cranial Weapons in Intertidal Sculpins (Pisces: Cottoidea: Oligocottinae)
FIG. 2. Allometric trajectories of three representative oligocottine sculpins. The regression score (vertical axis) represents the axis of maximum variance of allometric shape change of the preopercle and is unique to each species. A TPS transformation grid overlayed on a model of a preopercle that has been warped to show the change in shape illustrates the extremes of variation along that axis. The species illustrated (from top to bottom) are: Artedius lateralis, Oligocottus rubellio, and Leiocottus hirundo. Solid lines indicate a statistically significant relationship between preopercle shape and the standard length of the specimen; dashed line indicates a non-significant relationship (e.g., isometry). Stars and points in each plot represent the symmetric component of the shape of the left and right preopercle for an individual specimen of a given species. The inset preopercles in each graph show the morphology of the left preopercle of a small, medium, and large specimen of each species (respectively, from left to right; each specimen marked by a star). The color of stars, points, and regression lines in each plot represents the allometric trajectory such that green is negative (top graph), purple is positive (middle graph), and dark blue is isometry (bottom graph).
FIG. 1 in Taurus of the Tidepool? Inferring the Function of Cranial Weapons in Intertidal Sculpins (Pisces: Cottoidea: Oligocottinae)
FIG. 1. Location and morphology of the preopercle (outlined in red) in Clinocottus analis (left panel; OS 26170, 76.55 mm SL) and diversity of preopercle shape as represented in six phylogenetically dispersed cottoid species (right panel, clockwise from top left): Cottiusculus gonez (SU 69887, 36.6 mm SL), Antipodocottus galatheae (LACM 42620-7, 48.8 mm SL), Enophrys diceraus (OS 15214, 67.27 mm SL), Artediellus gomojunovi (UW 20981, 64.0 mm SL), Microcottus sellaris (OS 11467, 89.0 mm SL), Hemilepidotus spinosus (OS 3769, 62.0 mm SL). Scale bar is 5 mm.
Data from: 2D or Not 2D? Testing the utility of 2D vs. 3D landmark data in geometric morphometrics of the sculpin subfamily Oligocottinae (Pisces; Cottoidea)
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