Mr. J.J. Quelch on some Stylasteride. 267 
a peculiarity of the superficial calcification which has no special 
significance. ‘The shape and basal areolation of the ovicell 
as well as all the characters of the cell in the Pliocene speci- 
men are thoroughly typical. 
Lepralia thiara, Seguenza (p. 370, pl. xvii. fig. 57). 
= Cribrilina punctata, of very normal character. Pliocene 
and Quaternary. 
Salicornaria mammillata, Seguenza (p. 294, pl. xvii. fig. 5). 
Probably a species of Myrtozouwm; it is certainly not refer- 
able to Salicornaria (Cellaria). 
Professor Séguenza’s work is of such sterling character and 
will deservedly have so much weight with the student that it 
seems peculiarly desirable to prevent these spurious species, 
if possible, from sheltering themselves under its authority. 
| XXIX.— On some Stylasteride. By Joun J. QUELCH. < 
To the Editors of the Annals and Magazine of Natural History. 
GENTLEMEN,—In reply to the letter of Mr. Bryce Wright, I 
must first point out that one ef the species of Déstichopora 
to which | referred as having been omitted from his list was 
the D. gracilis, Dana, the only species of D¢stichopora that 
bears Dana’s name. ‘This was accidentally referred to in my 
paper as D. fragilis. of 
Mr. Wright states that he did not say that D. nitida, V., 
was of a whitish tint: I might reply, using his mode of ex- 
pression, that I did not say that he sazd so; Isaid he cndicated 
it; and to justify my statement I quote the following from Mr, 
Wright’s original paper :—“ the habitats of the living species 
being the Gulf-stream and in and about the West-India 
Islands and Florida, for D. nitida, Verrill, and D. cervina, 
D. foliacea, D. sulcata, D. barbadiensis, and D. contorta ot 
Pourtales. Most of these species are of a whitish tint, with 
the exception of D. foliacea, which is a pale pink-orange, 
whereas those inhabiting the Pacific are much more vivid in 
their colours.” I leave it to the judgment of any competent 
impartial person to decide whether I have misinterpreted Mr, 
Wright’s words or not. 
S 18* 
