. The Canadian journal of industry, science and art. . Fig. 92. Fig. 91. Pig. 91. Stricklandia eJow^ate.—(Vanuxem.) Doraal view of a specimen of a more neiffly oval shape than usual. Fig. 92. The same, interior of ventral valve, shewing the small triangular chamber beueath the beak. and compressed towards the front; the ventral valve in general the most convex, obtusely carinated from the beak along the middle in the upper half; the dorsal valve in the upper half often much flattened and broadly carinated in the middle, sometimes evenly convex. In many specimens the sides are abruptly compress
. The Canadian journal of industry, science and art. . Fig. 92. Fig. 91. Pig. 91. Stricklandia eJow^ate.—(Vanuxem.) Doraal view of a specimen of a more neiffly oval shape than usual. Fig. 92. The same, interior of ventral valve, shewing the small triangular chamber beueath the beak. and compressed towards the front; the ventral valve in general the most convex, obtusely carinated from the beak along the middle in the upper half; the dorsal valve in the upper half often much flattened and broadly carinated in the middle, sometimes evenly convex. In many specimens the sides are abruptly compressed, so that a transverse section through both valves would be somewhat hexagonal in outline. The beak of the ventral valve is closely incurved over the umbo of the dorsal valve. Surface smooth but usually with several rough concentric imbricating ridges of growth most strongly developed towards the front. Length from two to three or even four inches ; width from one half to two-thirds of the length. This appears to me to be a variable species, many of the specimens being somewhat broadly-oval, while others are elongate-oval or sub- cylindrical. So great are these differences that, without the interme- diate forms, the extremes might readily be classified as distinct species. The specimens are seldom found 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 Canadian Institute. Toronto : Canadian Institute
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Keywords: ., bookcentury1800, bookdecade1850, bookpublishertoron, bookyear1856
