412 CLARK. 



3. Linckia guildingii Gray. Apparently not common. 

 Recorded by Sladen in the " Challenger " report and by Pro- 

 fessor Heilprin. 



OPHIURIDS. 



4. Ophiactis mulleri Ltk. Two specimens collected by the 

 Philadelphia part}'. 



5. Ophiocoma crassispina Say. One specimen taken by 

 the Philadelphia party. 



6. Ophiocoma pumila Ltk. Collected by the " Chal- 

 lenger " and by the Philadelphia party. 



, 7. Ophiomyxa flaccida Ltk. One specimen taken by the 

 Philadelphia party. 



8. Ophionereis reticulata Ltk. Abundant. Recorded by 

 all parties. 



9. Ophiostigma isacantha Say. Two specimens taken by 

 the Philadelphia party, 



10. Ophiura appressa Say. Three specimens taken by the 

 New York UniYcrsit}' party. 



ECHINOIDS. 



11. Cidaris tribuloides Bl. Reported common by the 

 Philadelphia part}'. 



12. Diadema setosum Gray. Common. Collected by all 

 parties. 



13. Hipponoe esculenta Leske. Not uncommon. Col- 

 lected by all. 



14. Echinometra subangularis Leske. Common. Col- 

 lected b}^ all. 



15. Toxopneustes variegatus Lamk. Common. Collected 

 by all. 



16. Mellita sexforis Ag. Said to be common, but not 

 actualh' collected by either the Philadelphia or New York 

 parties. Recorded from Bermuda by Agassiz. 



17. Echinoneus semilunaris Lamk. Reported from Ber- 

 muda by Agassiz in his "■ Revision of the Echini " and in the 

 " Challenger " report. 



