On the morphometric relationship between beaks and body size in Histioteuthis bonnellii (Férussac, 1835) = Relazione morfometrica tra i becchi e le dimensioni del corpo in Histioteuthis bonnellii (Férussac, 1835)

MEREU, MARCO;CAU, ALESSANDRO;PORCU, CRISTINA;CUCCU, DANILA

2011-01-01

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Abstract

Six measurements of 109 beaks (59 males and 50 females) of Histioteuthis bonnellii (Cephalopoda: Histioteuthidae) caught in the south Sardinian waters were interrelated with the size (ML) of the specimens. In both sexes, respectively for upper and lower beaks, the lateral wall and the hood grew faster than other parts (e.g. the rostrum). The analysis of covariance showed different beaks in the two sexes (p<0.05)