GEOGRAPHICAL DISTHIBUTION. 



HISTORY. 



A careful synopsis of the habitats of all the Hexaetinellida definitely known in 1873 

 is given by Carter in his memoir On the Hexactinellidas and Lithistidce.* The results 

 of Carter's summary are tabulated here with several additions, and with the use of the 

 specific designations which I have adopted. 



Species, 



Locality. 



1. Euplectella aspergillum, Owen. 



2. Euplectella cucumer, Owen. 



3. Hahrodidijum speciosum, Wyville Thomson. 



4. Asconema setubalense, Sav. Kent. 



5. Stjmpagella mix, 0. Schmidt. 



6 Lamiginella pupa, O. Schmidt. 



7. Pohjlopihus phiUppiinensis, Gray. 



8. Rossella aniwdira, Carter. 



9. Rossella velata, Wyville Thomson. 



10. Crateromorpha meyeri. Gray. 



11. Hyalonema sieholdli, Gray. 



12. Hyalonema lusitanicum, I3ocage. 



13. Pheronema annx, Lcidy. 



14. Pheronema carpenteri, Wyville Thomson. 



15. Pheronema grayi, Sav. Kent. 



16. Pheronema liemisphxrira, Gray. 



17. Semperella sdtuUzei, Semper. 



18. Farrea occa. Carter. 



19. Farrea sp. {woodicanli, Sav. Kent). 



20. Farrea sp. {facunda, O. Schmidt). 



21. Farrea (?) infundibularis. Carter. 



22. Eurde sp. {simpHeissinia, Semper). 



23. Aplirocallistes hocagei, Wright. 



24. Aphrocallistes heatrix, Gray. 



25. Fieldingia lageiloides, Sav. Kent. 



26. Dadylocalyx pumiceus, Stntchbury. 



27. Dadylocalyx suhglohosns. Gray. 



28. Mylhuda calloryathus, Gray. 



29. Aidocystis grayi, Bowerliank. 



Philippines. 



Seychelles. 



Moluccas. 



Portugal. 



Florida. 



Cape Verde Islands, St. lago. 



Philippines. 



Antarctic Sea (South Pacific). 



South of Fffiroe Islands. 



Philippines, Zebu. 



Japan. 



Portugal. 



Santa Cruz, West Indies. 



South of Fairtie Islands. 



Portugal. 



Philippines, Zelm. 



Philippines, Zebu. 



Seychelles. 



Portugal. 



Between Florida and Cuba. 



Caribbean Sea, West Indies. 



Philippines, Zebu. 



Portugal. 



Malacca. 



Portugal. 



Barbados, West Indies. 



Jlalacca. 



West Indies. 



St. Vincent, West Indies. 



1 Ann. and Mag. Nat. Hist, ser. 4, vol. xii. p. 349. 



