THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY, 



[SECOND SERIES.] 

 No. 119. NOVEMBER 1857. 



XXX. — On some new Palaeozoic Star -fishes. By J. W. Salter, 

 Esq., F.G.S., Geol. Survey of Great Britain. 



[With a Plate.] 



It is not often that a dozen new Star-fishes turn up together 

 from the same locality — even in the Oolites or Chalk, where we 

 expect to meet with them. In the Silurian rocks they have 

 been scarce indeed, except in one particular spot in Westmore- 

 land, where, years ago. Professor Sedgwick obtained three or 

 four species. These were described by Professor Edward Forbes, 

 who thought he recognized in them affinities with our common 

 Cross-fish, and in one remarkable long-armed species, to be 

 presently noticed, relations with some Arctic forms of the 

 Euryales. 



Within the last twelvemonth a new and most prolific locality 

 has been found at Leintwardine, Shropshire, and the active 

 geologists of Ludlow have not been slow to work upon it. 

 Col. Colvin, C. B., of Leintwardine, has also collected many spe- 

 cimens, and the locality is now becoming well known. Having 

 visited it last year with Col. Colvin and Messrs. Lightbody and 

 Cocking of Ludlow, no doubt could be entertained as to the 

 geological position of the beds. They are the usual thin flag- 

 stones of the Lower Ludlow rock, and are covered by a thin 

 course of Aymestry limestone, full of Pentamerus KnightiL 

 The beds in question have yielded many other fossils besides 

 the Star-fish, particularly some fine Crustaceans : Pterygotus 

 (an undescribed one of great size), Ceratiocaris of several species, 

 and LimuloideSy a genus apparently closely allied to Limulus, 



Ann. ^ Mag, N, Hist, Ser. 2. Vol.xx, 21 



