. 58 



Cardium muricatum; taken at the Chandelenr Islands b}- 

 Dr. Cowles in 1904. 



Callocardia texasiana; taken at the Chandelenr Is^-^nds by 

 Dr. Cowles in 1904. 



Solcn americanus; taken at Cameron and at the Chandelenr 

 Islands. 



Solen viridis; fonnd in the sand flats at Cameron. 



Tagelus gihhus; 



Tagclus diversus; these two racoos clams were abundant on 

 the fiats at the Chandelenr Ifel-ands. ^-^ 



Pholas costahis; this form, known to the fishermen as •■< 

 "clam", is abundant at all points on the Louisiana coast where 

 any collecting has been done. 



Martcsia striata; a burrowing clam, is found in oyster and 

 Venus shells at several points on the coast; large numbers of 

 this form are frequently found in wreckage in the gulf. 



Ladiosa canictdata; 



Lahiosa lineata; the shells of both these forms are abundant 

 on the beach at Cameron, South West Pass, and the Chandelenr 

 Islands. 



Lucina floridana; taken on sand flats at the Chandelenr 

 Islands, 



Toredo sp.; a ship worm, is very abundant in the waters of 

 the gulf and does much damage to wharf piles and boats. 



CHORDATA. 



Balanoglossus sp.; the burrows of a balonoglossiis, were very 

 abundant on the sand flats at the Chandelenr Islands. 



Botryllus sp.; abundant on the eel grass at the Chandelenr 

 Islands. 



Molgula sp.; found on floating wood in tide pools at the 

 Chandelenr Islands. 



Pisces; 



Scoliodon terra^novae ; 



Sphyrna tihurno; both these sharks occur in the gulf at 

 Cameron. 



Dasyatis say ; the southern sting ray, is very abundant in 

 the gulf. 



Pteroplates maclura; taken in the gulf at Cameron. 



