Zoology. 143 
noid 
s new form* presents many features a interest and will doubt- 
less hedw light upon some obscure and doubtful points in the 
structure of fossil crinoids. So far as its anatomy bears upon 
the points discussed in the articles of Mr. Meek and Mr. year 
it appears to confirm the views of the former in regard to t 
positions of the a and anus of the ~ forms. For if w 
Imagine the convergent valves around the mouth to be enlar wed 
and united together over it by their = sted summits, we should 
ave nearly the structure made out by ek, 
‘The second part of the memoir is de ated to a description of 
the pic senility state of Antedon Sarsii, illustrated by two _— 
ora 
3. Contributions to the Natural History of the Detiadad, 
Coralliaria ; by J. Marruew Jones. (Proc. and Trans. of Nova 
and gives accounts of their mode of occurence, ete. The species 
are as follows: Lsophyllia dipsacea Verrill, Meandrina cerebri- 
Sformis Lam. (=Diploria cerebriformis Ewd. and H.), Sideras- 
trea radians V., Oculina diffusa Lam., O. varicosa Les., O. Valen- 
H. 
crenesti K. an = 0. Bermudiana Duch. and M.), Mycedium fra- 
gile Dana, Porites clavaria Lam., Millepora alcicornis Linn., Go 
gonia flabellum inn., Plecaura crassa Lamx., P. flecuosa Lamx., 
pe 
Les.; Leptoseris Jragilis is very distinct from 
Madrep ora palmata ‘Lam., M. pone ea: var. Sone an A 
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_ Observations upon the structure, habits, transformations, and cla 
‘Sification of insects, with which it is — but also for the 
4 * This specie is regarded Prof. A gassi 7900} sth th mod dredged 
_ by muanabene in 237 to 306 ol off the coast - Florida and described under 
the name of Bou urgueticrinus Hotessieri D’ Ord. in the Bulletin of the Museum of 
Comp. Zoology, p. 120, Dec, 1868 
