Fig. 5 a–d in Description of Spadella valsalinae sp. nov., a neo-endemic benthic chaetognath from Northern Adriatic Sea (Croatia) with remarks on its morphology, phylogeny and biogeography

Fig. 5 a–d. Comparative morphology of the posterior part of the body showing the shape and position of the seminal vesicles (arrows) as well as the posterior end of the lateral fins (arrowheads). Light micrographs of Spadella valsalinae sp. nov. (a), Spadella lainezi (b, picture montage after Casanova et al. 2006), Spadella ledoyeri (c) and Spadella cephaloptera (d). Bar 0.5 mm