VII, Usually considered to be the tergum of the genital somite, but suggested by Pocock to be that of the other [According to the system of numbering explained in the text, if VII is the tergum of the praegenital somite (as is probable) it should be labelled Prg without any number, and the somites VIII to XIII should be lettered 1 to 6, indicating that they are the six normal somites of the mesosoma; whilst XV to XVIII should be replaced by the numbers 7 to 12 - an additional suppressed segment (making up the typical six) being reckoned to the metasomatic fusion.] (From Lankester, Q. [Please select]
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, the margin of the scutum adjoining the tergum and upper latus, is not divided (fig.) [Please select]
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I may remark, that in all the species of Lepas, the upper part of the tergum seems particularly variable. [Please select]
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The spike and cutting edge together answer to the double occludent margin of the tergum in Lepas. [Please select]
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8 _a´_ and _b´_) are about equal in length: the basal portion of one side of the scutum overlaps the tergum. [Please select]
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_Lithotrya cauta_, magnified between seven and eight times; (_a_), scutum; (_b_), tergum. [Please select]