ON FOSSIL POLTZOA. 171 



This is the whole of the lists of Cretaceous Polyzoa that I have heen 

 ahle to obtain. There are several species described by D'Orbigny and bv 

 other authors, but their works were not accessible to me. It is to be 

 hoped that in the monograph of Cretaceous Polyzoa promised to the 

 Pahuontographical Society by Mr. Busk, that the whole of the Polyzoa of 

 various horizons will be fully examined. In my fourth British Association 

 Report I gave a fair digest of what is known of British species. 



1 Part III. — Tertiary Polyzoa, North America,' Lonsdale. 



_ In the first volume of the ' Quart. Jour, of the Geological Soc.,' Mr. 

 William Lonsdale described twenty-six species of ' Polyparia ' from the 

 ' Eocene Tertiary ' of North America. Nine species are Anthozoa, seven- 

 teen Polyzoa (six Cyclostomata, eleven Cheilostomata). In the same 

 Journal he described ten species from the • Miocene Tertiary ' formation of 

 N.A., three of which are Anthozoa, seven Polyzoa (only one of these 

 a Cyclostoma). As the monograph of Messrs. Gabb & Horn is a later 

 publication, many of the species of Lonsdale are rearranged or reduced to 

 synonyms. 



1. ' Eocene Polyzoa,' Lonsdale ' Quart. Jour. Geol. Soc.,' vol. i. 



2. ' Miocene Polyzoa,' Lonsdale ' Quart. Jour. Geol. Soc.,' vol. i. 



1. Eschaeixa tumidcla, Lons. — Loc. Petersburg. 



2. Lunclites denticlxata, Conrad, « Silliman Journ.,' Oct. 1841 



(vol. iv.) — Loc. Williamsburg. 



3. Cellkpora informata, Lons. — Loc. Petersburg, Virginia. 



4. ., oibilicata, Lons.— Loc. Petersburg. 



5 - » Quadrangularis, Lons. — Locs. Williamsburg, Evergreen. 



6. „ similis, Lons. — Loc. Williamsburg. 



7. Heteropora ? tortilis, Lons.— Loc. Williamsburg, Petersburg. 



Cyclostomata. 



1. TcBiLii'OKA PRor.osciDEA ? — Loc. Rock's Bridge. 



2. „ — one imperfect specimen. — Eutaw. 



3. Idmonea maxillaris, Lons.— Loc. Wantoot, S. Carolina. Viewed in 



front, this coral resembled a Mastricht fossil,; considered by 

 Goldf. as a young condition of Idmonea gradata (' Pet, Cor.' p. 

 244. ' Retepora disticha,' p. 29), but it differs essentially from 

 mature specimens of that species. 



4. I. commiscens, Lons.— Loc. Rock's Bridge. In the triangular form 



of the branches, this fossil resembled the Tertiary species of De 

 France or Mil.-Edw. under the names of Idmonea gradata and I. 

 coronopwt (' De F., Atlas des Sc. Nat.' pi. 46, f. 5. M.-Edw. 

 ' Rech. Polyp. Mem. sur les Cris.' pp. 24, 23.) 



5. Iemonea sp.— Loc. Rock's Bridge. 



6. Lichenopora sp. — Loc. Eutaw. 



Cheilostomata 



1. Farcimia sp.— Loc. Rock's Bridge, Eutaw, in S. Carolina. 



2. ViNCr/LARiA sp. — Loc. Rock's Bridge. 



3. Hippothoa tuberculum, Lons. — Loc. Rock's Bridge. • 



4. Eschara tubulata, Lons. — Loc. Wilmington. 



5. „ petiolus, Lons. — Loc. Eutaw. ° 



