106 REPonT — 1884. 



Family VII. CEf-LARiiDyT;, Hincks. 



= SALiconxAKiAD.t;, Busk; and Rcuss (part); ? Vinculaimad.!:, ]{usk ; 



Ceij-akie.k, Siuitt. 



* Zocccia usually rhomboidal or hexanf^nlar, disposed in series round 

 an imaginary axis, so as to form cylindrical shoots. Zoariam erect, 

 calcareous, dichotomously branched.' 



In this diagnosis Mr. Hincks (op. cit. p. 103) says : ' I have not 

 included the jointed condition of the znarium, as it must bo accounted 

 more than doubtful whether this character is of sufficient importance to 

 warrant the relegation of such closely allied forms as Cellarla and 

 Vincularla, Defrance, to different family groups.* .... In a portion of 

 his work ('Ann. Mag. Nat. Hist.' Feb. 1881, p. ir).5), 'Contributions 

 towards a (Jeneral History of the Marine Polyzoa,' Mr. Hincks appro- 

 priates the genus Vincitlaria, Defrance, in part, as a genus of the family 

 !Mit'i!OPOKir>.K — referred to further on — remarking on F//)c»Z«n'a a/; (/.«s;Vo/a, 

 Smitt, that the ' Zococial cliaracter of this generic typo' is 'essentially 

 Membraniporidan ' Acting upon this hint, and in accordance with the 

 general thoroughness of his work, Mr. Waters, in several of liis suggested 

 changes of generic names, places many forms, which other authors 

 may regard as Vincularla, among the Mcmhranipora, with the remark, 

 * Vincularla forma.^ As the name is likely to linger in our lists, but 

 without any genuine generic fixity — or, in other words, without generic 

 meaning in Mr. Hincks's classification — it may be as well to give as full 

 a history of the fossil group as possible under present circumstances. 



Defrance says (' Diet. d. Sc. Nat.' tome 5H, p. 214) : 'Wo have given 

 the generic name of Vincularla to little quadrangular bodies which arc 

 scarcely the size of a horse-hair, and which we find in a layer of the 

 Calcaire Grossier (= our IJrackleshani beds) in the environs of Paris. 

 They are two or three lines long, but they are not obtained perfect to 

 their terminations. . . . They have small grains on the four sides of the 

 little cells, the end one of which seems to be a sort of very small hole.' 

 Defrance gives several localities where the genus has been found, but one 

 particular form which he names V. fraijilis is briefly described and 

 figured in the ' Vilnes du Mus.,' and the author infers that his Vinndaria 

 may have had some relationship to Fhislra (? F. fistidnsa, Linn., 'Fauna 

 Suec' ii. 2234), which Hincks gives as a synonym of Cellarla fistulosa, 

 Linnieus. 



The next considerable addition to our knowledge of so-called Vincu. 

 hiria — in this country, at least — is furnished by M'Coy (' Carb. Foss. of 

 Irel.' 1844). M'Coy says ho accepts the genus of Defrance 'for those 

 species witliout lateral branches, and having more than two rows of 

 pores. I have not separated those specimens which have the pores all 

 round from those having them on one side only, as it seemed impossible 

 to separate gcnerically such species as V. parallela (Fhistra ? parallela, 

 Phillips) from V. raricosta, M'Coy.' Since M'Coy wrote the above the 

 species have again had to submit to changes, but both the species of 

 Vincularla given by him were transposed to D'Orbigny's genus Sulco- 

 retepora. 



M. d'Eichwald, in his ' Paleontology of Russia,' as well, I believe, 

 as in his other writings, adopts Defrance's genua Vincularla, and he gives 

 Glauconome, (part) Miinster, as a synonym. He describes several new 



