12G Prof. lil'Iiitosli's I\o(esfrom tie 



times, tliougli a definite name was not assigned to it. 

 Amongst others, Seba * (1758), in alluding to various marine 

 " mosses, coralliues," and tubular corallines, Co7iyeries 

 minuiorum iubulorum, Avliich lie figures in his ' Thesaurus,' 

 specially refers to this form, winch he found adherent to 

 rocks and other structures, in one instance forming the basis 

 to which Thuiaria thuja was attached (fig. 19 a). He figures 

 correctly the spaces between the fascicles of tubes forming 

 the mass. Though Plancus De conch'is minus notis is 

 quoted by some authors in this connection, nothing defi- 

 nite can be found in his work. Linuseus, Risso, Pallas, 

 and others placed it under the genus Serpula, whilst a few 

 included it under Protula. Oken termed it Clymene filo- 

 arana; Ray, Reticulatum tropliaceum\ Boece, Tubularia 

 filograna. The form is interesting in some other respects 

 than zoologically, since it occasionally blocks the jnpes 

 leading from the sea to the Marine Laboratory tanks, as at 

 Port Erin f. 



Berkeley (1827) clearly described the form with the 

 oj.ercula, which he dredged at Weymouth. In the * Zoologi- 

 cal Journal, Volume of Supplementary Plates ' (and not in 

 vol. iii.) he gives a figure (pi. xviii. fig. 3) in which a 

 somewhat pointed, hollow operculum is on each dorsal 

 branchial fiJameut. He shows seven pairs of thoracic bristles, 

 and in the posterior (so-called abdominal) region is an indica- 

 tion of a twist, or it may be a bud. 



Filograna implexa, as described by Sars J (1846) in his 

 first part of the ' Fauna Littorales Norvegise,^ had six pairs 

 of thoracic bristles in addition to the collar-bristles, two 

 opercula on the dorsal branchiee (right and left fans), and 

 two eyes. He gave no minute description of the " vermi- 

 dora " and figured only a few of its tubes. 



Oscar Schmidt § (1848) alluded to Filograna implexa, smd 

 stated that he had found a new species at Faroe with buds at all 

 stages. Tiie same year he || described Filograna schleideni from 

 the Faeroes, which he, as indicated, believed to be a new 

 species, characterized by the absence of opercula and the 

 ariangement of the eyes, which formed a row of four on 

 each side of the middle line. He shows seven pairs of 

 bristled feet in the anterior region, but does not diflferentiate 

 the collar-bristles or figure them, unless he intends the first 



* ' Catalogue of the Curiosities in the Cabinet of Albertus Seba. 



i" I have to thank Mr. Chadwick for tliis information. 



I Fauna Litt. Korveg. i. p. 86, Tab. 10, figs. 12-19. 



§ Frorieps Notizen, No. 143, p. 162, August. 



il Neue 13eitr. Naturgesch. "\Vlirnier, Jena, p. 33, Taf. iii. fig. 7. 



