U. S. NATIONAL MUSEUM 



130 



PROCEEDINGS. VOL. 88 PLATE 12 



127. Aponurus sp. from Lobotes siinnamensis: Ventral view. 



128-133. Derogenes varicus (Aiuller): 128, 130, Ventral views; 129, 131, 133, ova; 132, 

 lateral view: (128 and 129 from Lobotes surinamensis, 130 and 131 from Lophius 

 piscatorius, 132 and 133 from Gadus morrhua.) 



134-144. Hirudinella fusca (Bosc): 134, From Xiphias gladius, alcoholic specimen; 135, from 

 Thunnus secundodor sails, alcoholic; 136, from Trichiurus Upturns , alcoholic; 

 137, from Seriola zonata, formalin; 138, from Xiphias gladius, sagittal section 

 of neck; 139, from same, sagittal section of body behind ventral sucker; 140, 

 from Trichiurus lepiurus, cross section at level of genital papilla (cone, of 

 Poirier); from same, 141, cross section at level of ventral sucker; 142, from same, 

 ova; 143, from Thunnus secundodorsalis, ova; 144, from Xiphias gladius, ova. 



