2 PKOCEEDINGS OF THE NATIONAL MUSEUM. vol. 64. 



It should be noted that the sharks recorded in the years prior to 

 1922 as Carcharhimis ohscurus were probably either C. commersonii 

 or G. milberti. 



The scientific names of fishes mentioned in this paper are, for the 

 most part, those used by Jordan and Evermann in their Fishes of 

 North and Middle America. Departures from that nomenclature 

 have been made at the suggestion of the Bureau of Fisheries. 



LIST OF CESTODES NOTED IN THIS PAPER. 



Those marked with an asterisk are either described in greater or 

 less detail or have had additions or emendations made to former 

 descriptions. 



Anthohothrium * laciniatum. * Ichthyotaenia adherens, 



pulvinatum. Discoceplmlum peltatum. 



Spongiobothrlum variaUle. Otobothrium crenacolle. 

 Echeneibothrium variabile. dipsacum. 



RMnebothrium flexile. * penetrans. 



longicoUe. RhyncJiobothriuni aUenuatum. 

 * macallumi. bulbifer. 



minimum. * exile. 



Crossobothrium angustum. heterosinne. 



laciniatum. hispidum. 



* Monorygma perfectum. * insigtie. 



species. imparispine. 



* OrygmatobotJirium forte. lomentaceum. 



paulum. longicorne. 



AnthocepJialum gracile. longispine. 



Phyllolothrium foliatum. speciosum. 



Calyptrobothrium minus. tcnuispine. 



occidentale. titmidulum. 



*■ Trilocularia gracilis. * ujwinatum. 

 Lecanicephalum peltatum. wagneri. 



Callioboth7'ium eschrichtii. species. 



verticillatum. Larval stages, spe- 



Acanthobothrlum paulum. cios not deter- 



coronatutn. mined. 



Oncliobotlirium wncinatum. Synbothrium filicoUe. 



* Phoreiobothrium exceptum. * malleum. 



* lasium. Tetrarhynchus bicolor. 



* pectinatum. bisulcotits. 



* triloculatum. elongatus. 



* Platybothrium cervinum. * palliatus. 



* purvum. robustus. 



Tliysanoceplialmn thysanoceplialum. Scolex polymorphus. 



Parataenia medusia. 



NEW SPECIES. 

 CESXODE. HOST. 



Ichthyotaenia adherens Cestracion zygaena. 



Orygmatobothrium forte Cestracion zygaena. 



Phoreiobothrium exceptum Cestracion zygaena. 



pectinatum Cestracion zygaena. 



