420 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



Donald*. This species is general in the elevated Pleistocene reefs 

 and in the areas of living reefs in the Caribbean region and in Florida. 

 It is one of the most abundant species on the living Bahamian reefs, 

 but appears not to occur in the Bermudas. 



MAEANDRA STRIGOSA (Dana). 



1846. Meandrina strigosa Dana,- U. S. Expl. Exped. Zooph., p. 257, pi. 14, figs. 



4a, 46. 

 L901. Platygyra viridis Vaughan, Geolog. Reichs. Mus. Leiden, ser. 2, vol. 2, 



p. 51. (With synonymy.) 



1901. Platygyra viridis Vaughan, U. S. Fish Com. Bull, for 1900, vol. 2, p. 306, 



pis. 9, 10, 11, 12, 13. 



1902. Maeandra cerebrum Verrill, Conn. Acad. Arts and Sci. Trans., vol. 11, 



p. 74, pi. 10, fig. 4; pi. 12, fig. 4; pi. 14, figs. 4, 5. 

 1902. Maeandra viridis Vaughan, Biol. Soc. Washington Proc, vol. 15, p. 55. 

 1907. Maeandra cerebrum Verrill, Conn. Acad. Arts and Sci. Trans., vol. 12, 



p. 169. 

 1915. Maeandra strigosa Vaughan, Washington Acad. Sci. Journ., vol. 5, p. 596. 

 1917. Maeandra strigosa Vaughan, Carnegie Inst. Washington Yearbook No. 14, 



p. 227. 



I can not at all agree with Professor Verrill's application of Ellis 

 and Solander's name "cerebrum" to this species. There are three 

 large, massive species of Maeandra in the West Indies and Florida, 

 namely, M. labyrintMforrnis (Linnaeus), M. clivosa (Ellis and Solan- 

 ,der), and M. strigosa (Dana). I applied to M. strigosa a varietal 

 name proposed by Le Sueur, but Professor Verrill expressed doubt 

 as to Le Sueur's having meant the species under consideration. 

 There is good evidence that Ellis and Solander did not intend Madre- 

 pora cerebrum for this species, for they applied the name Madrepora 

 labyrinthica to it and figured it. As they applied names to two of the 

 identifiable species, it is probable that they intended Madrepora 

 cerebrum for the third species, that is, for Madrepora labyrintMforrnis, 

 of which Diploma cerebriformis (Lamarck) M. Edwards and Haime 

 is a synonym. 



Under these circumstances, the proper course to pursue evidently 

 is to take the first name concerning which there is no doubt. Choice 

 then fall on Meandrina strigosa Dana, the type of which is in the 

 United States National Museum. 



Locality and geologic occurrence. — Costa Rica, station 6251, Monkey 

 Point, in the slightly elevated Pleistocene reef, collected by D. F. Mac- 

 Donald. This species is general in the Pleistocene and living coral 

 reefs of the Caribbean region, Florida, and the Bahamas, and is 

 found living in the Bermudas. It is one of the two most important 

 massive reef -building species in Florida and the West Indies; the 

 other of the most important species is Orbicella annularis (Ellis and 

 Solander). 



