8G Mr. A. Alcock on 



Family Porcellanasteridge. 

 PORCELLANASTER, Wyville Tliomson. 



14. Porcellanaster cceruleus, Wyville Thomson. 



Porcellanaster ccp.ruleus, Wyville Thomson, Vov. Chall. Atlantic, vol. i. 

 p. 378, fig-s. 97 and 98 TSladen, ' Oliallengev ' Asteroidea, p. 134, 

 pi. XX. ; and in Wood-Mason and Alcock, " Indian Deep-sea 

 Dredging," Ann. & Mag. Nat. Hist., Dec. 1891, pp. 433 and 434. 



Andaman Sea, 683 fathoms, blue mud; Laccadive Sea, 

 738 fathoms, green mud; and Bay of Bengal, 1664 to 1748 

 fathoms, Glohigerina- oozq. 



Styracaster, Sladen. 



15. Styracaster horridus^ Sladen. 



Styracaster horridm, Sladen, ' Challenger' Asteroidea, p. 150, pi. xxiii. 

 figs. 5-7, pi. xxvli. figs. 17-20 ; and in Wood-Mason and Alcock, 

 " Indian Deep-sea Dredging," Ann. & Mag. Nat. Hist., Dec. 1891, 

 p. 434. 



Bay of Bengal, 1748 and 1803 fathoms, GloMgerina-oozo, 

 and pumice. 



16. Styracaster armatus, Sladen. 



Styracaster ai-viatiis, Sladen, * Challenger ' Asteroidea, p. 153, pi. xxiv. 

 figs. 1-4, pi. xxviii. figs. 1-4. 



Bay of Bengal, 1840 and 1924 fathoms, Olohigerina-oozQ. 



17. Styracaster clavipes, Alcock and Wood-Mason. 



Styracaster clavipes, Ann. & Mag. Nat. Hist., Dec. 1891, p. 434. 



Bay of Bengal, 1748 fathoms, Glohigerina-oozQ and 

 pumice. 



Hyphalaster, Sladen. 



18. IJyplialaster tara, Alcock and Wood-Mason. 



Hyphalaster tara, Ann. & Mag. Nat, Hist., Dec. 1891, p. 434. 



Bay of Bengal, 1748 and 1997 fathoms, Glohigerina-oozQ 

 and pumice. 



