498 MB p. W BASSETT-Silixn ON Af T. 18, 



G. 4. Charopinus Kroyer. 



Cephalothorax short, distinctly two-joiated. Second maxillipeds 

 very long and slender, arm -like, with organ of attachment as hand- 

 like clasping processes. Grenital segment elongated, indistinctly 

 segmented, terminating in two simple filiform processes. Abdomen 

 rudimentary. External ovaries saccular. 



Male minute; cephalothorax distinct; 2nd maxillipeds very 

 large and cheliform ; abdomen with 5 or 6 articulations. 



(1) Chaeopinus eamosus. 2 d . 



Charopinus ramosiis Kr. Bidrag til Kuudskab, 1863, p. 284, 

 pi. xiv. fig. 5. 



Host : gills of Baja davata. Europe. 



(2) Charopinus dalmanni. ^ ^ . 



Lerncea dalmannii Hetzius, Froriep's Notizen, xxix. 1831, p. 617, 



pi. vi. fig. 5. 

 Lei-ncBopocla dalmannii Kr. Tidsskrift, i. 1837, p. 264, pi. ii. fig. 3. 

 „ „ M.-E. Hist. Nat. Crust, iii. 1S40, p. 516. 



Charopinus dalmannii Kr. Bidrag til Kundskab, 1863, p. 280, 



pi. xiv. fig. 6. 

 Host : gills of Raja batis. Europe. 



(3) Charopinus hypocephalus. $ . 



Stylophorus hypocephalus Hesse, Ann. Sci. Nat. ser. 6, viii. 1878, 

 art. 15, p. 1. 



G. 5. Acthebes Nordm. 



Cephalothorax distinctly separated from the body, short, oval, 

 one-jointed. Second maxillipeds long, slender, arm-Like, united at 

 the end, bearing a small disc of attachment. Body oval, distinctly 

 segmented. External ovaries bag-like ; ovules large. 



(1) ACTHEEES PERCARUM. $ . 



Adheres perairum Nordm. Mikrog. Beitrage, 1832, p. 63, pi. i. 

 Kr. Tidsskrift, ii. 1838, p. 143, pi. iii. fig. 6. 

 „ „ M.-E. Hist. Nat. Crust, iii. 1840, p. 511, 



pi. xl. fig. 8. 

 Host: Perca fluviatilis. 



(2) Actheres pimelodi. $ . 



Adheres pimelodi Kr. Bidrag til Kundskab, 1863, p. 272, 

 pi. xvii. fig. 5. 



Host : gills of Pimelodes maculatus. North America. 



(3) Actheres lac^. $ . 



Adheres lac(e KlLr. 



„ „ Kr. Bidrag til Kundskab, 1863, p. 274, pi. xvii. 



fig. 6. 

 Host : Perca laca. North America. 



