PORITTDjE. 9 



3. Astrmommplm Reuss (Wiener Denksch., vii. (1854) p. 127). See Duncan's Revision, p. 135. 



4. Coccoseris Eichwald (Lethsea Rossica, i. pt. 1 (1860) p. 442). Placed by Lindstrom among 



the Heliolithidre, Kong. Svenska Vetens.-Akad. Handlingar, xxxii. (1X99-1900) p. 189. 



5. Ccenostroma Winchell (Proc. American Assoc, 1866). On this genus also see Lindstrom, 



ix. pt. 2 (1870) p. 6 of the same publication. 



6. Coscinarcea M.-E. & H. (C.R., xxvii. (1848) p. 496). Placed by Dr. Klunzinger among the 



Fungidae, Cor. des rothen Meeres, iii. (1879) p. 78 ; see also Duncan's Revision, cited 

 above. 



7. Comop&rites Duch. and Mich. (Les Cor. des Antilles, supp. (1864) p. 99). Not sufficiently 



distinguished from Porites. 



8. Dichorcea Woods (Linn. Soc. New S. Wales, iii. (1879) p. 96, pi. x. fig. 4). This minute 



coral appears to me to be allied to the Favositidae. 



9. Dictyarcea Reuss (Novara Expedition, vol. ii. (1866) p. 175). On this genus see the remarks 



made on p. 30. 



10. Dktyophyllia de Blainville (Diet. Sci. Nat., Ix. (1820) p. 325) = Mceandrina reticulata 



Goldfuss, pi. xxi. fig. 5 ; cf. also the figure of Cleistopora in Nicholson's ' Manual of 

 Palaeontology,' i. (1889) p. 310. See also Duncan's Revision, p. 131. 



11. Dimorpharcea Fromentel (' Introduction a l'etude des polypiers fossiles,' 1861, p. 254.) This, 



according to Duncan, is a Microsolenid (see his Revision, p. 170). 



12. Heptastylis Freeh. (Palseontographica, xxxvii. p. 18). The resemblance of this to the 



Poritidse is purely superficial. 



13. Holarma M.-E. & H. (OR., xxix. 1849, p. 259). Subsequently merged with Axopora in 



'Les Coralliaires,' iii. (1860). 



14. Mceandrarcea Etallon (Lethsea Bruntrutana, 407, pi. 57, pp. 11 and 12). There is not 



sufficient evidence to connect this with the Poritida?. 



15. Microsolena Lamouroux (Exp. Method (1821) p. 65). The long septa running from calicle 



to calicle in curved lines is not a character of the Poritidse. 



16. Napopma Quelch (Ann. Mag. Nat. Hist., xiii. (1884) p. 296). Merged with Porites in 



Vol. V. of this Catalogue. 



17. Neoporites Duch. and Mich. (Cor. des Antilles, supp. (1864) p. 97. Merged with Porites. 



18. Palceoporites Kiar. (Palaiontographica, xlvi.). The name of this new genus seems to 



suggest a phylogenetic connection with the recent Poritida? ; but if it is a Heliolithid 

 it could not be related to any member of the true Perforata. 



19. Pleurodictyum Goldf. (Petref. Germ., i. (1829) p. 113) is a Favositid. 



20. Prolarcea M.-E. & H. (Pol. foss. Terr. Pal. (1851) p. 208). See Lindstrom's Heliolithida? 



(cited above). 



21. Psammocora Dana (Zooph. (1848) p. 344). See Duncan's Revision ; also Dr. Klunzinger's 



work above quoted. 



22. Rhodarma M.-E. & H. (C.R., xxix. (1849) p. 259). Merged with Goniopora (see this volume 



p. 15). 



23. Somplwphora Lindstrom (Richthofen's China, iv. (1883) p. 51) is a Favositid. 



24. Stylarcea Seebach (Zeitsch. Deutsch. Geol. Ges., xviii. (1866) p. 306) is the same as Coccoseris 



Cp. Lindstrom (I.e.). 



25. Stylarcea M.-E. & H. (Klunzinger, Kor. des Rothenmeeres, ii. (1879) p. 43. Merged in this 



Catalogue with Porites (Vol. V. in preparation). 



26. Synarcea Verrill (Bull. Mus. Comp. Zool. Camb. Mass., 1864, 3, p. 42). Merged in this 



Catalogue with Porites. 



27. Thecia M.-E. & H. (C.R., xxix. (1849) p. 263). According to Miss Ogilvie (Phil. Trans., 



clxxxvii. p. 339) allied with Protarasa, Coccoseris, etc. 



28. Tichopora Quelch (Chall. Rep., xvi. (1886) p. 188). Here merged with Goniopora (see p. 16). 



