42 



Pholas. The large Pholas costata is very abundant on some of the 

 'hard mud flats of the gulf shore. It is styled a "clam" 'by the in- 

 habitants of Cameron who use it as food. 



Gastropods: — Several species of prosobranchs are common, 

 among them Urosalpinx cinerca, and Neverita duplicata. Purpura 

 haemastoma is extremely abundant on the west jetty where its cap- 

 sules may be found by the thousands. 



Cephalopods: — One species of squid as yet undetermined was 

 found in considerable numbers. It is used as food by the fisher- 

 men. 



CRUSTACEA. 



Decapods: — Among the common decapods are: Panopeus 

 herbstii; the southern edible crab; Ocypoda arenaria; Gelasimus 

 pugnax; Eupagurus longicarpus ; E. pollicaris. 



Other Groups: — Among the other groups of Crustacea are: 

 Peneaus setifurus; Squilla empusa; Palaemon sp.?; and Alpheus 

 heterochelis. The cirripeds are represented by Balanus eburneus; 

 Lepas anatifera; Dichylaspis millleri. The isopods are represented 

 by Caligulus rapax; Cymothoidae sp. ?; Ceratothoa linearis; and 

 some other parasitic forms. 



\'£RTEBRATA. 



Selachians: — The selachians are numerous in individuals but 

 the number of species represented is not very large. Several spe- 

 cies of ray including the southern sting-ray are very numerous. 

 Among the other selachians are : Dasyatis say, the bonnet-nosed 

 shark; the sharp-nosed shark — Scoliodon terrae-novae ; the butter- 

 fly ray — Pteroplatea maclura; and the saw-fish — Pristis pectinatus. 



Teleosts : — The more common teleosts are the following : The 

 alligator gar, Lcpisasteus trisoechus; the tarpon or Grande Ecaille, 

 Megalops atlanticus; the swell toad, Chilomyctenis schoepfi; the 

 sea robin, Prionotus tribuhis; the angel fish, Chaetodipterus faber; 

 the sole, Achiurus fasciatus; Gobiesox virgatiilus; and a species 

 of menhaden. Among the edible forms are the rock fish; the 

 channel cat,Trachysurus felis; the southern flounder, Paralichthys 

 Icthostigma; the croaker, Micropogon undulatus; the sheeps-head, 

 Archosargus probatocephalus; the sea trout; the mullet, Catos- 

 tomus teres; the common sucker ; and the red fish,Sciaena ocellata. 



Other Vertebrates :-^Other vertebrates, living in or near the 

 water, are: The porpoise which is extremely abundant; the al- 

 ligator. Alligator mississipiens ; and the diamond-back terrapin. 



