the Genera and Species of Starfish, 



279 



8. Anthenea, Gray. 

 Body 5 -rayed, chaffy, with immersed elongated tubercle-bear- 

 ing ossicula ; margin with regular rows of large tessera? ; both sur- 

 faces (especially the under) scattered with large 2-lipped pores. 



1. Anthenea chinensis, Gray. Asterias chinensis, Gray, Brit. Mus. 

 Back obscurely netted, rather chaffy, with scattered truncated tu- 

 bercles in rather diverging lines ; marginal plates not tubercled ; rays 

 broad, half the length of the width of the body. 



Inhab. China, Japan. J. Reeves, Esq. 



See also Seba, iii. t. 6. f. 5, 6. (Ast. tessellata, var. A. Lam.). Si- 

 milar, but the dorsal tubercles are larger and angular. 



9. Hosia, Gray. 



Body 5 -rayed, formed of distinct, hexangular, nearly equal, slightly 

 tubercular ossicula ; back with small and beneath with larger 2-lipped 

 slits. 



Hosia flavescens. Arms two-thirds the length of thejwidth of the 

 body. 



Inhab. Perhaps young. 



See also Asterias granulans, Retz. in Muller Zool. Dan. t. 92. f. 1. 

 4. From the North Sea. Gmelin referred to Linck, 1. 13. f. 22. t. 23. 

 f. 37 ? — t. 24. f. 39. and t. 27. f. 45. all Goniaster tessellatus, for this 

 species ? as he also has done to Ast. equestris. 



** The ossicula of the upper and lower surface and the margin 

 smooth, with a single continued series of uniform granules round each 

 of their edges. 



10. Hippasteria, Gray , Syn. Brit. Mus. 



Body 4 or 5 -sided, formed of roundish ossicula, with a large trun- 

 cated central tubercle ; upper and lower surface with 2-lipped pores. 



1. Hippasteria Eur op <za. Asterias equestris, Penn. B.Z. iv. 130. 

 Sow. Brit. Mis. f. 3. not Muller nor Lamk. Rays 5, broad, nearly 

 half as long as the width of the body, marginal ossicula with three 

 blunt tubercles placed in a central cross series. 



European Ocean. 



2. Hippasteria Johnstoni. Asterias Johnstoni, Gray, Johnst. Mag. 

 Nat. Hist. 1836. vi. f. 21. not Chiaje. Kays 4, elongated, slightly 

 tapering, back spinulose with short truncated spines, margin with 3 

 or 4 series of elongated tapering spines. 



North of England. 



See also Hip. plana. Pentaceros planus, Linck, 21. t. 12. f. 21. 

 (Ast. equestris, Gmelin and Lam.), which chiefly differs in the arms 

 appearing longer. 2. H. cornuta, Pent, longiorum cornuum, Linck, 

 43. t. 33. f. 53, with the arms still longer and more slender at the 

 end. All four are perhaps varieties of one ; Gmelin refers for this 

 species to Linck, t. 5. f. 13 ; an Astropecten, t. 13. f. 22. t. 23. f. 37. 

 t. 24. f. 39. and t. 27. f. 45. all Goniaster tessellatus. 



