168 
OOLITIC ASTEROPECTINIDiE 
Honorary Secretary of the Club, for permission to use the woodcut to ilhistrate my 
description of the species in this Monograph, for which I return Dr. Paine my very best 
thanks. The figure is drawn to scale twice the natural size and is reversed. 
Additional Notes on Genera belonging to the Family 
AsTROPECTiNiDiE, Muller and Troschel. 
Astropecten rectus, pi. XIX, fig. \ a, b. 
The specimen of this species, figured in PI. XII, is only a horizontal section of the 
skeleton just as it was entombed in the Calcareous Grit. Since that plate was drawn I found 
in the collection of my late friend Mr. John Leckenby, P.G.S., a fragment which shows 
the structure of the marginal ossicles, and is now figured in PI. XIX, so that we are able 
to make a tolerably perfect restoration of this fine Star-fish of the Corallian seas. Each 
of the marginal plates appears to have carried a kind of socket, probably for the articu- 
lation of a spine. They all have rounded margins and a cancellated structure, so well 
depicted by my late able and accurate artist friend, Mr. C. R. Bone, in fig. 1 a and 
fig. 1 b. 
Pig. 1, Plate XII, was drawn from a specimen in the collection of the Rev. T. 
Wiltshire, P.G.S. 
Astropecten Hooperi, Wrigld, n. sp. PI. XXI, fig. 3 (p. 123). 
Fossil Asteria. Loudon's Mag. of Nat. Hist., vol. ii, p. 73, fig. 19, 1829. 
This beautiful Astropecten was found by the Rev. James Hooper, Rector of Stawell, at 
Horsington, Dorset, and a good sketch of the original fossil was communicated by 
W. H. R. N., Yeovil, 21st August, 1828, to Mr. Loudon's ' Magazine of Natural 
History.' " The Starfish was taken from a stratum of Cornbrash, and is a very perfect 
specimen. The sketch and the figure are the exact size of the original." 
Many years ago, when my ' Monograph on the Possil Asteroidea ' was passing 
through the press, I made several inquiries about this specimen, which I failed to 
trace, as the figure at that time and since had been entirely overlooked. I have, 
therefore, had a copy made of the woodcut in Loudon's Magazine, as it is the only Star- 
fish I know from the Cornbrash, and it is right that it should find a place among its 
congeners in this Monograph. 
Diagnosis. — Rays five, short, acutely lanceolate ; sides straight, intermediate angles 
