ON FOSSIL rOLYZOA. 



107 



usk ; 



round 

 erect, 



vc not 



ountcd 



Mice to 



la and 



•tion of 



butiona 

 appro- 

 family 



ijsslrola, 



lentially 



vith the 



IT crested 



autliors 



remark, 



ists, but 

 generic 



e as full 



COS. 



ve given 

 liich are 

 T of the 

 uf Paris. 

 Brfect to 

 1)9 of the 

 all hole.' 

 but one 

 ibed and 

 iiindarici 

 , 'Fauna 

 fislidosa, 



ed Vincn. 

 Foss. of 

 for those 

 rows of 

 pores all 

 nipossible 

 parallda, 

 above the 

 species of 

 lus Sulco- 



I believe, 

 d he gives 

 veral new 



Bpccics — V. innri'cnta, ornafa, and raripora. Through tlio kindness of 

 Prof. Ferd. Iloemer, of Breslaii, I have received tracings and descriptions 

 of D'Eichwnld's species. The author says that ' the Polyzoary is micro- 

 scopically cylindrical or angular, Avith from four to twenty corners, fi.xed 

 l)y the base, simple or ramose, and that the branches are of the same as 

 the principal stem. The genus is rarely found in the Greywacke, in the 

 Carboniferous limestone, and is more frequent in the Cretaceous and 

 Tertiary strata.' ' Vincnlaria murirafa is very much like Al'Coy's 

 V. megaatoina, and V. ornata appears to bo the more perfect form of 

 V. muricata — all allied to, if not identical with, Mhahlomvson (Millepora) 

 fjrarilr, Phillips. V. rariiiora, D'Eich., is different from the others, bnt 

 the horizon (Carboniferous) is the same. The author says: 'This very 

 graceful polyzoon is in fragments of two lines long by a quarter of a line 

 in width. It is cylindrical, bi- and tri-furcating. The cells elongate, 

 oval, rather deep, almost tlat ; tliero are from three to four in a trans- 

 verso row, separated from each other by a sufficiently wide space, which is 

 sometimes of the width of the cells themselves.* I know of no British 

 Carboniferous fossil that would answer wholly tho description of 

 D'Eichwald. In the peculiar mode of branching and bifurcating tho 

 nearest approach to it is the lli/phasuKipimi of Mr. Robert Etheridge, jun., 

 but in this fcssil there are so many peculiar features that, if these had 

 been seen by D'Eichwald, he would have directed attention to them. 



In his various writings Dr. A. E. Reuss adopts the genus Vlncularui, 

 Dcfrance, for certain forms having a peculiar ' Escharidean character,* and 

 one characteristic of Vlnnilaria, of Reuss, is that the cells are arranged 

 round 'an imaginary central axis'; but Dr. Reuss honestly states 

 ('Palojon. Stud.') that he is unable to distinguish between Vincularia 

 and tho Escliarkhv. 



As, however, other authors may have some doubts about the Gdlariiilcr 

 character of some of the species of VhicitJaria of the Cretaceous and 

 Tertiary epochs described by llagenow and Reuss, I shall for the present 

 keep the genus distinct, placing against tho described forms tho.se 

 synonyms which seem to be the most likely to bo correct, or otherwise 

 giving tho references and restrictions furnished by the authors them- 

 selves. ^Ir. Hincks, however, upon reconsideration, suppresses the name 

 V'mndaria as a distinct genus for recent species. I merely retain the 

 name for fossil species for the convenience of future workers, and because 

 many of the forms described are not in my cabinet 



Genus Vl^'CUI>AUIA, Defr. = Glauconomc, (part) Goldfuss. 



Division Urc'EOI.ata, Hagenow, 



Maestricht Beds. 



22. ViNCUr-ARiA AUEOLATA, Hagenow, Tab. VI. fig. 12, ' Die Brj'ozecn 



der Mastrich. «Sbc.' 1851. 



23. ViNCULAKiA 13ELLA, Ilogenow, Tab. VI. fig. 13, 'Die Bryozeen 



der Mastrich. &c.' 1851. 



24. ViNCULAuiA CANALiFERA, Hagciiow, Tab. VI. tig. 14, ' Die Bryozeen 



der Mastrich. &c.' 1851. 



25. ViNC'ULAiuA PROCERA, Hagenow, Tab. VI. fig. 15, 'Die Bryozeen 



der Mastrich. &c.' 1851. 



26. ViNCULARiA GoLDFUSsii, Hagenow, Tab. VI. fig. 15 = Cellaria 



ibid., Hag. 



• LctJuca conica, pi. 2. 



