284 



Mr. J. E. Gray's Synopsis of 



t Rays cylindrical, blunt. 



1 Ophidiaster aurantius. Orange, rays with 7 rows of rounded 

 tubercles, about 4 times as long as the width of the body ; spines 

 near the ambulacra short, ovate, club-shaped. 



Inhab. Madeira, rocks on Porto Santo Laurence Rev. R. T. 

 Lowe. 



2. Ophidiaster Leachii. Rays elongate (smooth ?) with 8 or 9 

 irregular rows of unequal tubercles. The spines near the ambulacra 

 club-shaped, rather dilated and more compressed at the tip. 



Inhab. " Isle of France." Dr. W. E. Leach. 



3. Ophidiaster Guildingii, Gray. Pale brown (dry), rays cylin- 

 drical, 4 times as long as the width of the body, with 7 series of 

 moderate tubercles ; the spines near the ambulacra compressed, 

 thin ovate. Var. 1. female ? Rays thick, spaces between the tuber- 

 cles large, with numerous dots. Var. 2. male ? Rays thin, spaces 

 between the tubercles small, with 4 or 6 dots. 



ft Rays round, tapering, acute. Hacelia. 



4. Ophidiaster attenuatus. Rays rounded, elongate, nearly 4 times 

 as long as the width of the depressed body, broad at the base and 

 tapering, with 9 rows of triangular tubercles ; spines near the ambu- 

 lacra large, ovate, blunt. 



Inhab. . Brit. Mus. 



fft Rays triangular, tapering, with 3 interrupted bands of pores on 

 each side. Pharia. 



5. Ophidiaster pyramidatus . Rays subangular, elongate, nearly 4 

 times as long as the width of the pyramidical body, with 7 rows of 

 tubercles ; the central dorsal series much the largest ; spines near 

 the ambulacra ovate, subacute. 



Inhab. Bay of Caraccas, West Colombia, on the rocks. H. Cu- 

 ming, Esq. 



** Series of spines near the ambulacra nearly of the same size as 

 the ambulacral ones. 



24. Linckia (not Micheli), Linkia, Nardo and Agassiz, not Per- 

 soon nor Cav. 



f Rays 5, cylindrical, with the groups of pores scattered on the 

 whole surface. 



1. Linckia Typus, Nardo. Pentadactylosaster miliaris, Linck, t.28. 

 f. 47. Ast. laevigata, Linn., Lam. 39. Pale yellow (dry), rays cy- 

 lindrical, elongate, rather tapering at the end, nearly 7 times as 

 long as the width of the body ; back and sides with equal-sized tu- 

 bercles, and moderate sized dotted interspaces on the sides ; apical 

 tubercles moderate. Distorted; Asterias cometa, Blainville. 



Inhab. Mediterranean, Linn. Egypt, Sir J. G. Wilkinson. 

 See also Linckia franciscus, Nardo, and Asterias multiforas, Lam. 

 n. 37. 



2. Linckia crassa. Rays elongate, thick, cylindrical, blunt at the 



