384 



PROF. F. J. BELL, ON ECHINO DERMS 



[June 19, 



Echinoids, all of which had been collected at Aripo by M. Alois 

 Humbert. Of these four {Phyllacanthus annulifera, Temnopleurus 

 reynaudi, Clypeaster htimilis, and Laganum depressum), G. humilis 

 has been found by Mr. Thurston. 



Of the Echinoderms collected by Dr. John Anderson, F.R.S., in 

 tlie Mergni Archipelago, reports on the Ophiuroids by Prof. Martin 

 Duncan, F.R.S., and on the Holothurians by myself have alone 

 appeared as yet^ ; these, as well as the forthcoming reports by 

 Dr. H. Carpenter and Mr. Sladen, should be consulted by the 

 student who desires to make himself acquainted with the Echino- 

 derm fauna of the Indian Ocean. 



I shall probably best serve the cause of brevity and clearness if I 

 follow the arrangement of the Andaman Report, and give first a list 

 of the species collected, and then some notes and descriptions of the 

 new species. With regard to some of the Temnopluroid forms and 

 a new Ophiuroid, apparently allied to Ilemieuryale, I reserve an 

 account till I can deal with them in monographical detail. As 

 usual, there are a few Holothurians which cannot be at present 

 satisfactorily determined. 



1. Antedon palmata, Mull. 



2. reynaudi, Mull. 



I. Crinoidea. 



3. Actinometra parvicirra, Miill. 



II. ASTEROIDEA. 



4. Echinaster purpureus, Gray. 



5. Linckia lajvigata, Gmelin. 



6. Antherea peutagonula, Lamk. 



7. Oreaster lincki, De Bl. 



8. superbus, Mobius, 



9. thurstoui, sp. n. 



10. Asterina cepheus, M. Tr. 



11. Luidia bardwictii, Gray. 



12. maculata, M. Tr. 



13. sp. (young). 



14. Astropecten hemprichii, M. Tr. 



15. sp. (young). 



III. QPHIUROIDEA. 



16. Pectinura gorgonia, M. Tr. 



17. intermedia, sp. nov. 



18. Ophiocoma erinaceus, M. Tr. 



19. Ophiothrix longipeda, M. Tr. 



20. Ophiothrix nereidina, Lamk. 



21. Ophioniaza cacaotica, Lyman. 

 Hemieuryalid. 



2-2 



IV. ECHINOIDEA. 



23. Temnopleurus toreumaticus, 



Lctike. 



24. Temnopleuroid. 



25. Salmacis bicolor, Ag. 



26. dussumieri, Ay. 



27. sulcata, Ag. 



28. Stomopneustes variolaris, Lamk. 



29. Ecbinometra lucunter, Leske. 



30. Clypeaster humilis, Leske. 



31. Lagainnum decagonale, Less. 



32. Ecbinodiseus biforis, Gon. 



33. Ecbiuolauipas oviformis, Gm. 



34. Lovenia eloiigata, And. 



35. Ehinobrissus pyraiuidalis, A. Ag. 



36. Brissus unieolor, Leske. 



37. Metalia sternalis, Lamk. 



' Journal of the Linnean Society, Zool., vol. x.\i. pp. 25 and 85. 



