1 



ON FOSSIL POLYZOA. 



125 



vol. 



2llii(a 



iters), 



Tert. 



cit. 



274; 



\Jla are 

 alian 

 liericati 

 eivcn 



It, witli 

 isting. 



I'iO. Mastigopiiora DuTKUTiiKT, Aiul. (Flastm ihid)= Lejiralia Womliaua 



Busk, ' Crag Poly. ' p. 42, pi. vii., tigs. 1 and o^Lepralia 



aurita, Renss, ' Bryoz. d. dentscli. Soptarien.' p. G2=L(prah'a 



otnphojri, Manzoni, ' Castrocaro,' p. 2o (nou L. ntophora, Itss.). 



Itange. — Cor. Crag, JMitLcluligocau (Kss.), Older Pliocene, Castrocaro. 



Living. 



Genus Rnvxrnoi'ORA, Hincks.' 



No fossil species recorded. See Hincks, ' Brit. ^Far. Poly.' p. GS"). 



Genus SciUZOTIIK'.a, Hincks, p. 283. 

 No record of fo.ssil species. 



Genus HirroiiiOA, Lamouronx. 



G((teni''i'lli', (part) B!aln\.; ? Turchn'poru, D'Orb. ; MuUiii, (i)art) 



Smitt. 

 ' ZoLVclii distant, caudate, connected with one another by a slender 

 prolongation of the lower extremity, so as to form linear series ; branches 

 given off from the sides of the cells; oriKce subterminal, suborbicular, 

 with the lower margin sinuated or produced. Zoariuia adherent.' — 

 Hincks, p. 2«G. 



150. HiPPOTiiOA divakh'Ata, Lanix=7/. pnfa'joui'cd, Busk, 'Crag,' 



p. 24, pi. i. fig. 5; //. loinjicdw.h'ii, Fischer=//. imtarjonica, 



Busk. 



Unvfic. — Pliocene, Castrocaro, rare (]\[an:^oni) ; Scotch Glacial ; 



Pala)olithic ; var. patai/onica, Cor. Crag ; Hippurite Limestone, St. 



Grcgoire (Michelin). 



1-51. Hii'rOTiiOA Kxi'AxsA, Dawson (see Hincks for description, op. elf. 

 p. 2l,tl). ' The species is distinguished from H. Hivitricata by its 

 large size.' — Hincks. 

 linngo. — Post-Pliocene. I'oaufort and Itivicro-du-liOup, Canada 

 (Dawson). Living, Shetland. 



152. HiiTOTUOA FLAG ELLUM, Manzoni, ' Bryoz. Foss. Ital.' 4th Contrib. 



C, ]). 1, f. 4. ^ 

 limnje. — Pliocene, Calabria; Castrocaro (!^Lanzoni). 



Family XV. EsciiAuiim-:, (part) Smitt. 



This is by far the most important family group founded by the Rev. 

 Thomas Hincks in his wnvk on the 'Brit. Marine Polyzoa,' and the 

 iloscription of the genera and species occupies over 100 pages of the 

 work. So far as the diifert'nt genera have been worked, the grouping 

 appears to be perfectly natural ; but at the same time, as our knowledge 

 increases of the foreign II' 'cent as well as Fossil fc>rms, some of the 

 genera might require moditication. Under present circumstances it is 

 best to adopt the family as it is. 



' Zmiriam calcareous, incrusting, or erect and lamellate, or ramose. 

 Zud-cia without a membranous area, or raised nnirgins : (<«) with a 

 simple primary aperture, horseshoe-shaped, or semielliptical, or subor- 

 bicular; or (/j) with an elevated secondary orifice inclosing an avicu- 

 larium ; or (y) with a primary orifice having a dentate lower margin, 

 and a secondary orifice channelled in front or entire ; or (^), with the 



M ' This trcnus is wrongly placed among the Escharidtc. It belongs to the family 

 Myriozoidic. 



