74 A. U. Verrill — Bermudian and West Indian Reef Corals. 



Meeandra cerebrum (Ellis and Sol.) V. Brain Coral. Brain Stone. 



Madrepora cerebrum Ellis aiul Sol., Nat. Hist. Zooph., p. 163, 1786. Gmeliu, 



in Linne, Syst Nat., ed. xiii, vi, p. 3763, 1798. 

 Madrepora labyrinthica Ellis and Solander, Nat. Hist. Zooph., p. 160, pi. xlvi. 



figs. 3, 4, 1786 (not of Pallas, which is .1/. meandrites Linne", ed. x.) 

 Meandrina labyrinthica (pars) Lamarck, Hist. Nat. Anim. sans Vert., ii, p. 



246, 1816 (non Mad. labyrinthica Pallas). 

 Meandrina sinuosa LeSueur, Mem. Mus. d'Hist. Nat. Paris, vi, p. 278, pi. xv. 



fig. 4, and f varieties viridis, p. 279, pi. xv, fig. 5; ? appressa, p. 280, pi. 



xv, fig. 6; f rubra, p. 280, pi. xv, fig. 7; t vineola, p. 280, pi. xv, fig. 8, 1820 



(non M adrepor a sinuosa Ell. and Sol. =-.Mussa or Isophyllia; nee Meandrina 



sinuosa Quoy and Gaimard). 

 .'.' Meandrina dedalea Les. , op. cit., p. 281, pi. xvi, fig. 9, 1820. 

 M. labyrinthica Les., op. cit., pi. xvi, fig. 10, 1820. 

 Meandrina labyrinthica Lamouronx, Exp. Meth. Gen. Polyp , p. 54, pi. xlvi, 



figs. 3, 4 (reprint from plate of Ellis and Solander), 1821 (non Pallas). 

 Meeandra (Platygyra) labyrinthica (pars) Ehrenberg, Cor. Rothen Meeres, 



Abh. k. Akad. Wiss. Berl. for 1832, p. 323 [99], 1834. (Includes 5 species. 



mostly of Cceloria, t. Vaughan, from types.) 

 Meandrina labyrinthica, p. 256, pi. xiv, fig. 1 ; 4- M. slrigosa, p. 257, pi. xiv, 



fig. 4a, Dana, Zooph. U. States Expl. Exp., 1840. 

 Mceandrina heterogyra, p. 392; + Jf. sinuosissima ; + M. serrata, p. 393 ; + ili". 



crassa, p. 394, + Cceloria strigosa, p. 418, Milne-Edwards and Haime, Hist. 



Nat. Corall., t. ii, 1857 (teste Vaughan, from types). See also .1/. sinuosa 



Les. and varieties, described on p. 389, foot note. 

 Leptoria fragilis Duchassaing and Michelotti, Mem. Corall. Ant., p. 351, 1861 



(teste Vaughan, from type). 

 Mceandrina strigosa Pourtales, Flor. Reefs, Corals, Mem. Mus. Comp. Zool., vii, 



pi. ix, figs. 6-9, 1880. 

 Mceandrina strigosa, pp. 10, 92; + M. sinuosissima, pp. 10, 91 ; + M. labyrinf- 



thica, pp. 10, 12, 91 ; + ?M. sinuosa, p. 12, Quelch, Reef Corals, Chall. Exp., 



vol. xvi, 1886. 

 Mtea nd ri na filograna [pars) Gregory, op. cit., p. 265 (non Esper). 

 Platygyra viridis Vaughan, Samml. Geol. Reichs-Mus. , ii, p. 51, 1901 (after 



var. viridis Les.) 

 Platygyra sinuosa Vaughan, op. cit., p. 56, 1901. 

 Matandrina labyrinthica Whitfield, Bull. Amer. Mus. Nat. Hist., N. York, 



xiv, p. 221, pi. xxxi, xxxii, 1901. (Abnormal, type studied.) 



Plate X. Figure 4. Plate XII. Figure 4. Plate XIV. Figures 4, 5. 



This species usually forms evenly convex, thick, encrusting masses, 

 or when well grown, large even hemispheres, sometimes a yard or 

 more in diameter, with intricately convoluted gyri. Its actinal 

 grooves are usually wider and more open than in the preceding 

 species, while the mural ridges are generally high, narrow, solid, 

 and rather thin in sections, and they usually appear acute at the 

 crest, owing partly to the fact that the septa are generally narrowed 



