282 



Mr. J. E. Gray's Synopsis of 



2. Othilia aculeata. Rays cylindrical, more than 3 or 4 times 

 as long as the breadth of the body, with 7 rows of acute spines. 

 Young (or Var.) arms with only five series of similar spines. 



Inhab. Guacomayo, Central America, fine sand, 13 fathoms. H. 

 Cuming, Esq. 



3. Othilia multispina. Rays short, depressed, broad, rather more 

 than twice as long- as the width of the body, blunt at the end, with 

 11 rows of acute distant spines. 



Inhab. . 



4. Othilia purpurea. Purplish, rays cylindrical, nearly three times 

 as long as the width of the body, with numerous short, rather blunt 

 spines ; under side with cross wrinkles, and 2 or 3 series of pores 

 parallel to the ambulacra. Monstrosity 4-rayed. 



Inhab. " Isle of France." W. E. Leach, M.D. 



5. Othilia Luzonica. Reddish brown, rays 5 or 6, elongates 4 times 

 as long as the width of the body, with many blunt spines. 



Inhab. Isle of Luzon. H. Cuming, Esq. 



17. Metrodira, Gray. 



Slightly granular ; rays slender, with large single pores and small 

 scattered spines on the back ; smooth, and formed of regular flat 

 ossicula on the sides. 



1. Metrodira subulata. Yellow brown ; rays elongated, slender, 

 tapering. 



Inhab. Migupou. H. Cuming, Esq. 



** Spines small, crowded, scattered on the sides and at the junctions 

 of the slender ossicula. 



18. Rhopia, Gray. Stellonia part, Agassiz. 



Ambulacral spines long, with several series of larger spines near 

 them. 



1 . Rhopia seposita. Asterias seposita, Retz. Nov. Ac. 1783. 229 ; 

 Gmel. 3182; Lam. n. 30; Seba, iii. t. 7. f. 5. Pentadactylosaster 

 reticulatus, Linck, t. 4. f. 5. Stellonia seposita, Agassiz. 



2. Rhopia Mediterranea. Yellow, rays 6, tapering, nearly three 

 times as long as the width of the body ; spines short, cylindrical. 

 Var. ? Rays 7, unequal ; spines shorter. 



Inhab. Marseilles. 



ft Granulated, the rays above largely tubercular, not spinose, with 

 minute dots between the tubercles, beneath uniform ; dorsal wart tri- 

 angular, irregularly punctate and contorted. 



19. Ferdina, Gray. 



Body flat ; rays broad, convex and warty above, flat and uniform 

 beneath ; ambulacral spines short, united at the base. 



1 . Ferdina flavescens. Yellow, brown varied ; rays near half as 

 long again as the width of the body, uniformly tubercular, blunt. 



Inhab. Isle of France. W. E. Leach, M.D. 



