Note 146 — XI. NOVEMBER

I have figured a group in the centre of Plate XXXIII. I cannot satisfactorily identify it with any species described in Grube’s Fam. der Anneliden. It has some affinities with the Sabella penicillus of Müller; and still more with S. gracilis of Grube. This latter is defined, however, as wanting the two naked threads by the mouth, which in my little species are sufficiently conspicuous. I must leave it undetermined.