Vaughan — Nomenclature of West Indian Corals. 55 



Linnaeus. In this I must admit having committed an error, as 

 Ehrenberg, 1834, restricted 3Iaeandra, dividing it into two 

 subgenera Platygyra and Dendrogijra. Only one of Oken's 

 original species, the labyrinthica, from the Red Sea, was in- 

 cluded under Maeandra, and that in the subgenus Platygyra, 

 thus making the Red Sea form the genotype, and causing Pla- 

 tygt/ra to be a synonym of Maeandra. There is sometimes ap- 

 parent disagreement between Prof. Verrill and myself where 

 there is in reality agreement. I had clearly recognized the ex- 

 tremely close relationship of Diploria, Manicina (auct.) and 

 3Iaeandrina M. Edw. & H. (non Lamarck, 1801) and had 

 thought of combining them as one genus, especially Diploria 

 and Manicina (auct.), but did not consider the data at my dis- 

 posal quite sufficient to warrant such action; but, probably, I 

 would have united them in my next publication, as Prof. 

 Verrill has done. 



3. JIaeandra cerebrum (Ellis & Solander, 1*786) versus 

 Maeandra viridus (LeS., 1820). I discarded the Madrepora 

 cerebrum of Ellis and Solander as being unidentifiable, particu- 

 larly as no locality is given. If the West Indies had been 

 named as the locality, I would be strongly inclined to adopt 

 the name, as the description is almost the same as that of Ma- 

 drepora labyrinthica, which is from the West Indies (the latter 

 name is peroccupied, Pallas, 1766, and is not available). As 

 Ellis and Solander had given a name to the West Indian species, 

 it seems probable that the other species may have come from 

 another locality, for instance, the Red Sea. I do not see how 

 a valid argument as to what was meant could be drawn from 

 the use of the specific name cerebrum, because Ellis and Solan- 

 der may have given the name of themselves, or natives, of 

 other parts of the world may call similar coral "brainstone". 

 In my opinion the evidence is not sufficient for the identification 

 of cerebrum. 



Concerning viridis LeSueur, described as a variety of Mean- 

 drina sinuosaf Ellis & Sol., I remark that it is easy to identify 

 LeSueur's sinuosa (not of Ellis & Solander). LeSueur divided 

 the species, chiefly on the basis of color, into varieties, which 

 he himself evidently did not consider of specific value. The 

 possible species from his descriptions, are limited to two, the 

 one that I claim he meant, and clivosa of Ellis and Solander., 



