Mothocya 187 



RECORDS New Jersey to Florida; gills of kingfish, Jamaica; Cuba; St. 

 Christopher; Spanish mackerel Scomberomorus maculatus and cero Scomberomorus 

 regalis, Puerto Rico; king mackerel Scomberomorus cavalla, Colombia; Gerres rho- 

 mbeus, Panama; spot Leiostomus xanlhurus, Gulf of Mexico. 

 Brazil. 



Lironeca tenuistylis (Richardson, 1912b) 

 Figure 83E 



DIAGNOSIS 9 13 mm. Cephalon barely immersed in pereonite 1. Uropodal 

 rami reaching beyond rounded posterior margin of pleotelson; exopod longer 

 than endopod; endopod slender, about three times longer than wide. Pleonite 

 1 barely immersed in pereonite 7. Pleotelson basally wider than long. Attach- 

 ing to host between pectoral and anal fin. 



RECORDS Longnose anchovy Anchoa lamprotaenia: Panama. 



Mothocya Costa, 1851 



DIAGNOSIS Cephalon more or less immersed in pereonite 1. Bases of anten- 

 nules widely separated; antennules longer and more robust than antennae. 

 Coxae nearly reaching or extending beyond posterior margin of respective 

 pereonites. Pleon somewhat immersed in pereonite 7. Uropodal exopod 

 longer than endopod. 



REMARKS Bruce (1986b) revised the genus Mothocya. The species o{ Moth- 

 ocya are almost entirely gill parasites on the fish families Hemiramphidae, 

 Apogonidae, Belonidae, and Atherinidae. 



Key to species of Mothocya 



1. Cephalon anteriorly narrowed, slightly immersed in pereonite 1; 



pleotelson subrectangular bohlkeorum 



Cephalon anteriorly broad, deeply immersed in pereonite 1; pleotelson 

 subtriangular nana 



