Carcharhinus obscurus (Continued' 



Alebion carchariae Kr0yer 1863. West Florida. Body surface. 



Cressey (1970); Massachusetts. Wilson (1932); West Africa. 



Pectoral fin. Vaissiere (1959). 

 Alebion gracilis Wilson 1905. Indian Ocean. Body surface, 



fin. Cressey (1967a); Laysan Island. Wilson (1932). 



KROYERIIDAE 



Kroyeria g racilis Wilson 1932. West Florida. Wilson (1932). 

 PANDARIDAE 



Nesippus oriental is Heller 1865. Angola. Surface. Nunes- 



Ruivo (1956); Gulf of Mexico. Mouth and body 



surface. Bere (1936); Massachusetts. Wilson (1932) 



as N. alatus . 

 Nesippus gracilis Wilson 1935. Gulf of Mexico. Mouth and 



body surface. Bere (1936). 

 Pandarus smithii Rathbun 1886. West Florida. Body surface. 



Cressey (1970). Massachusetts. Wilson (1932). 

 Pandarus cranchii Leach 1819. West Florida. Tail and 



pectoral fin. Cressey (1970). 

 Pandarus satyrus Dana 1852. Gulf of Mexico. Body surface. 



Bere (1936J: 

 Pandarus sinuatus Say 1817. Gulf of Mexico. Body surface. 



Bere (1936); Massachusetts. Wilson (1907b); 



North Africa. Exterior on fin. Capart (1953) as 



P_. affinis . 

 Perissopus communis Rathbun 1887. Massachusetts. Rathbun 



(1887); Gulf of Mexico. Body surface. Bere (1936). 

 Perissopus dentatus Steenstrup and Lutken 1861. Indian 



Ocean. Body surface. Cressey (1967a). 



SPHYRIIDAE 



Paeon elongatus Wilson 1932. Massachusetts. Gill cavity. 



Wi 1 son (1932). 

 Opimia exilis Wilson 1908. Gulf of Mexico. Gills. Bere 



(1936"): 



DIGENEA 



BUCEPHALIDAE 



Prosorhynchoides arcuata (Linton 1900) n. comb Massachusetts, 

 Doll f us (1937). 



HIRUD1N0IDEA 



PISCIC0LIDAE 



Stibarobdella macrothela (Schmarda 1861) Llewellyn 1966. 

 Atlantic. External surface, mouth. Sawyer et al. (1975). 



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