POLYCLADS OF W. INDIES AND FLORIDA — HYMAN 147 



elongate penis papilla appears to be the chief distinguishing feature of 

 this species. The penis stylet as seen in the whole specimen is drawn 

 to the side of figure 89,c. 



Distribution: The original specimen came from Thatch Island, 

 in the Danish West Indies. The present specimen was taken with a 

 dredge at about 40 feet in the Gulf of Mexico about 12 miles southeast 

 of Alligator Point in Franklin County, northwestern Florida, Dec. 20, 

 1952. 



Specimen: The specimen remains in my possession. 



Summarizing remarks 



There are herein reported 15 species of polyclads taken in the West 

 Indies. Two other species known to occur in the West Indies have 

 since been taken on the Gulf coast of Florida but were not refound in 

 the present collections from the West Indies. The species taken from 

 the West Indies may be tabulated as follows: 

 Acotylea Cotylea 



Discocelidae Pseudoceridae 



Adenoplana antillarum,, new species Thysanozoon nigrum Girard, 1851 



Stylochidae Pseudoceros splendidus Stummer- 



Stylochus megalops (Schmarda), Traunfels, 1933. 



1859. Euryleptidae 



Stylochus oculiferus (Girard), 1853 Acerotisa multicelis, new species 



Indistylochus hewatti, new genus, Prosthiostomidae 



new species. Prosthiostomum pulchrum Bock, 



Cryptocelidae 1913. 



Anandroplana muscularis, new ge- 

 nus, new species. 

 Anandroplana portoricensis, new 

 species. 

 Leptoplanidae 



Notoplana insular is Hyman, 1939 

 Notoplana ferruginea (Schmarda), 



1859. 

 Crassandros dominicanus, new ge- 

 nus, new species. 

 Piano ceridae 



Gnesioceros floridana (Pearse), 1938 

 Styloplanocera fasciata (Schmarda) , 

 1859. 



It may be useful to others to list here additional species that have 

 been reported from the West Indies in the literature but that were not 

 refound in the present material, although two of them have since been 

 taken in the Gulf of Mexico: 



