Contributions to British palæontology : or, First descriptions of three hundred and sixty species and several genera of fossil Radiata, Articulata, Mollusca, and Pisces from the Tertiary, Cretaceous, Oolitic, and Palæozoic strata of Great Britain. . nds short ovate, length little more than the depth of oneside of the carapace, length of the moveable finger about equalto, from its base to the carpus, and a little longer than the widthof the hand; both fingers incurved at the tip and set on theinner edge with a row of blunt hemispherical teeth half theirdiameter apart; carpus subtrigonal, a litt
Contributions to British palæontology : or, First descriptions of three hundred and sixty species and several genera of fossil Radiata, Articulata, Mollusca, and Pisces from the Tertiary, Cretaceous, Oolitic, and Palæozoic strata of Great Britain. . nds short ovate, length little more than the depth of oneside of the carapace, length of the moveable finger about equalto, from its base to the carpus, and a little longer than the widthof the hand; both fingers incurved at the tip and set on theinner edge with a row of blunt hemispherical teeth half theirdiameter apart; carpus subtrigonal, a little longer than wide;arm compressed, about one-third longer than wide ; surface ofhand and carpus with many large, curved, spinose tubercles,and an intermediate, close, smaller tuberculation; length ofmoveable finger 1 inch 1 line, from thence to carpus 11 lines,width of hand 1 inch. The very short small ovate hands easily distinguish this spe-cies from the other two. Common in the lower chalk of Cherry Hinton, near Cam-bridge. {Col. University of Cambridge and Rev. T. Image.) (Fam. Thalassinidce.) Meyeria (MCoy), n. g. Gen. Char, Carapace strongly compressed laterally; nuchal fur-row very deep, V-shaped, the lateral portions nearly straight,. Side view. h. Carapace seen from above, c. Tail-flaps. 138 CRUSTACEA. meeting on the back at an acute angle considerably in front ofthe middle, and extending to the lateral margins at a pointdeeply notched by the abrupt narrowing of the front fromthence to the sharp rostrum : branchial furrow forming a nearlystraight, delicate, impressed line from near the lower ends ofthe nuchal furrow to the middle of each side of the posteriormargin (never meeting on the midline of the back); portionin front of the nuchal furrow with a few longitudinal,strong, denticulated ridges, rest of carapace rough with smallpointed granules : abdomen semicylindrical, large, segmentssculptured with rows of granules, the ends of the secondjoint dilated,
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectpaleontology, bookyea
