150 



ni:rouT— 18H4. 



jwra virgnsloiiKi (^['('oy), is only its yoiuii^'or stnj^(> ; and if, on llic otiipr 

 Imiul, tlio liittcr t'orin l)o liuld to he ii I'oly/odii, llicii its later slii<^(! is only 

 a f'lirtlu!!' (lovcloidncni. of I'nly/oii! lilV, mid Fix! iili^iin-n iiiiiinr, and tlio 

 other Ibnns inditatcd in Dr. Ijindstroin's papoi' in tlie " Annals," iniisL of 

 necessity hc^ removed from tlic Tuhnlato Corals.' 



It. is impossihlo to gainsay the Ii)i,n(! ol" Mv. .lohn Ycainix, liowevcr wo 

 may be inclined to eontroveit tlio views of those who still liold the I'olyzoal 

 aflinity of Silurian liixrtijKira. I do not, howcn'er, speak witiioiit a full 

 knowledjje of the whole of the foi'nis previously referred to, and at present 

 it; would be better to defer any positive opinion in the faeo of the really 

 lionest work of Dr. Tiindstrom, Sinitt, Prof. A. Nieliolson, or Mr. John 

 Youn<^. Yet I cannot forbear reniarkint; that, so far as I can rely upon 

 my own work, I cannot speak in favour of the views of those who hold 

 the belief that any natural alllinty exists between the Dixcoponi of the 

 Silurian I'oeks, and the lUxcnjidrcllaof present seas. In this review, then, 

 I must except the FalaMi/oie forms alto<j;ether, and I would prefer, for 

 the present, to leave also the Mesozoic as will. 



Genus LiCKKNOPOUA, Defranc. 



* Zoar!i!m(\if coin, raised, .simple, or compo.sed of many confluent disks, 

 ontirel}' adnate, or partially free, and sometimes stipitate, developed on a 

 thin lamina, whieh usually forms a border romul it. Zuacia distinct or 

 connate in single radiating lines, or nmltisorial.' -Hincks, ji. 472. 



13o. Lli.'HENOi'OKA iiisi'inA, Flem. (ITiiK;ks,p. 47'^)=Dim>porcUa liiKpida, 



Gray; Ihisk, 'Crag Pol.' p. ll-"). Ih'scucjirfa (LirJiciKipdni) 



aculcdta, D'Ovh. 'rUctcrujxjrclla iwUiiUt, Busk, 'Crag I'ol.' 



p. 127, pi. xix. iig. 2. 

 TiniK/f. — rCor, Crag (S. Wood) ; Scotch Glacial Deposits (Geikie) ; 

 Post-Pliocene, Canada (Dawson). Living. 



1;)4. Lk.'IIKNOI'OUA liAiti.vrA, And. (Hincks, ]>. 47G)=:D{sro2iorcJI<( sp., 



;^hulzon^, ' Bry. du Plioc. de Rh.odes.' 

 .7i'«»7t\ - Pliocene ; llhodes (Man/.); liruccoli, Sicily (Waters). 

 Living. 



loo. LicHKNdi'OKA VKUuncAiMAjLinn. I'abr. (Hincks, Y).l7>^) = Vimicavra 



and Uniciirca,D'Oi'h. ' This in nuiny respects resembles I). 



radiatd. It is not the DiscajKiyelhtverniciirin of ]\Ianzoni (']?ry. 



Foss. Ital.' 4tli Contr. pi. vi. fig. -VS), which nuxy be Jh'a- 



stnporajliiht'lliiiu, Llss.' (Waters, ' Bry. Bay of Naples,' p. 271). 

 Ranijc. — Living. Fossil (?). 

 18G. LicnEXOi'ORA cuassiusoit.a, Smitt (Scand. \ivyo-A.) — Tahid'iiiora, 



Gri(piovensi's, Busk, ' Crag Pol.' p. IIC). 

 Jianrje. — Crag (Busk). ]jiving, Xortheru Seas. 

 137. Liciiexoi'OEa keuulakis, D'Orb. (Hincks, p. 170) ; B'Orb. ' Pal. 



Fr.' 

 Mange. — French Cretaceous beds. Living, Shetland. 



Genus DoMOrOKA, D'Orbigny. 



Dowopora, D'Orb., 1874, ' Prod, de Pal.,' Busk ; Defrnncia, (part) 

 Reus.i, Hagenow, Sars, Manzoni ; Ceriopora, (part) Goldfuss ; Stellijjora, 

 (part) Hagenow. 



' Zoanum massive, cylindrical or mammiform, simple or lobed, formed 

 of a number of subcolonies superimposed one upon the other ; the whole 



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