Adult and juvenile specimens of Amplectobelua symbrachiata frontal appendage and statistical analysis for the ontogenetic relationship between main appendage traits. (IMAGE)

Science China Press

Adult and juvenile specimens of Amplectobelua symbrachiata frontal appendage and statistical analysis for the ontogenetic relationship between main appendage traits.

Caption

(A) General morphology of A. symbrachiata. (B) Morphology of frontal appendages (FA) and explanations of measurements taken for main analysis: claw length (CL), claw height (CH) and En1 length (En1L). (C and D) Scatter plots of the ontogenetic relationship between the independent variables of CL, CH and En1L, showing that CL, CH and En1L increase in size proportionally. n, number of specimens. (C) In(CL) regressed against In(CH). (D) In(CL) regressed against In(En1L). (E–G) Specimens of frontal appendages with different sizes. (E) The largest appendage (EJ-1908) and the smallest juvenile appendage (JS-0850), emphasizing the great size difference. (F) The adult appendage with medium size (SJZ-281). (G) Enlarged view of the smallest appendage (JS-0850).

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