Fig. 8 in Ultrastructural differences in presumed photoreceptive organs and molecular data as a means for species discrimination in Polygordius (Annelida, Protodriliformia, Polygordiidae)

Fig. 8 Phylogram of maximum likelihood analysis of cytochrome oxidase I (COI) dataset produced in MEGA5.1 based on T92 + G + I model. Analysis of COI sequences of individuals of P. lacteus from Helgoland (North Sea), Beg Meil and Roscoff (Brittany); P. erythrophthalmus from Beg Meil, and P. appendiculatus from Helgoland, Roscoff and Ischia (Mediterranean Sea); and 1 sequence of O. limacina from GenBank used as out-group. Values on nodes indicate support from 1000 bootstrap replicates (only those greater than 70 % shown). Branch lengths (>0.50) are shown below the branches and scale bar indicates substitutions per position. * = prostomial red eyespots observed thus initially identified as P. erythrophthalmus