Huxley, in 1868, divided the carinate birds into Dromaeo-, Schizo-, Desmo-, and Aegithognathae, an arrangement which for many years had a considerable influence upon classification. [Please select]
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_--Thorax remarkably compressed and carinated; prosoma pretty well developed. [Please select]
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Spire with carinated plaits, the interstices with slender, crowded, transverse grooves. [Please select]
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Laminato-carinate: with an elevated ridge or keel, formed of thin plates. [Please select]
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Abdomen with the sides of the upper surface carinated. [Please select]
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_ Shell small, olive; spire longer than the aperture; the tip obtuse, rufous; basal whorl slightly carinated in the middle; umbilicus obsolete. [Please select]
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_ Shell above carinated, fulvous, with two whitish bands; spire short, spotted, the base depressed; the whorls concave with two depressed lines; suture channelled; base granulated, purple. [Please select]
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