NO. 3577 ECHINOIDS — KIER 3 



tribuloides (Lamarck) and Tripneustes ventricosus (Lamarck) (pi. 2: 

 fig. 4). 



Below 10 feet, Diadema antillarum was the only echinoid seen in 

 any number. The spatangoid Meoma ventricosa (Lamarck) lives in 

 the sandy patches together wdth a few individuals of Clypeaster sub- 

 depressus (Gray) and C. rosaceus (Linnaeus). 



Sand Environment 



The bottom of the bays are mostly sand or silt except for a narrow 

 band of gravel at the shoreline (fig. 2). Only one echinoid, Leodia 

 sexiesperjorata (Leske), was found in the shallower parts of these 

 sandy areas. Between 25 and 65 feet holothurians were encountered 



SAND ENVIRONMENT 



,,__^___^_^Leodio sexiesperforolo (Leske) 

 °''<'"' ^^^"^ilX abundant — buried 



Figure 2 



Patches of sponges with 

 Meomo ventricosa (tomorck) 



- 10 ft. 

 -20 

 -30 



- 40 



- 50 



- 60 



- 70 



- 80 



frequently and, at one site north of Tarreau Point at 50 feet depth, the 

 starfish Oreaster reticulatus (Linneaus) was present in great numbers. 

 In a few of these sandy areas small patches of sponges and a few 

 specimens of Meoma ventricosa (Lamarck) were present between the 

 depths of 25 and 50 feet. 



Echinoids and Their Localities 



species 

 Eucidaris tribuloides (Lamarck) 

 Tripneustes ventricosus (Lamarck) 

 Echinometra lucunter (Linnaeus) 

 Echinometra viridis Agassiz 

 Diadema antillarum Philippi 

 Clypeaster subdepressus (Gray) 

 Clypeaster rosaceus (Linnaeus) 

 Leodia sexiesperjorata (Leske) 

 Meoma ventricosa (Lamarck) 

 Schizaster (Paraster) floridiensis Kier and Grant 



locality 

 8 



8, 10, 18 

 8, 14-16, 18 

 8 



1-3, 5, 6, 8, 10, 13-17 

 2, 6, 10, 13 

 10 



7, 9, 12 

 2-4, 6, 10, 12 

 4 



