1899.] PAE.VSITIC COPEPODA ON FISHES. 477 



G. 15. Lampeoglenia Nordm. 



Head distinct, quadrilateral. Thorax elongated, composed of 

 four rings indistinctly articulated. Genital segment short. Abdo- 

 men very long ; caudal plates small, lobe-like. Anterior antennae 

 with 10 joints. Posterior antennae not uncinate, but provided 

 with setae. First maxillipeds very strongly uncinate, second 

 terminating in 3 claws. Thoracic limbs rudimentary, the first four 

 biramose, tiftli minute, stump-like. 



(1) Lampro&lbnia pulchella. 5 . 



Lamproglenia pulchella Nordm. Mikrogr. Beitrage, 1832, Heft 2, 

 p. 1, pi. i. tig. 1. 

 „ „ M.-E. Hist. Nat. Crust, iii. 1840, p. 487, 



pi. xxxix. fig. 6. 

 „ „ Ckus, Beitrage, 1875, p. 26, pi. ixiv. 



fig. 33. 

 Host: gills o£ Cypmtms jeses [Leuciscus sp.]. 



(2) Lampeoglenia lichi^. $ . 



Lamproglenia lichice Nordm. Mikrogr. Beitrage, 1832, Heft 2, 

 p. 134. 



Host : gills of Lichia aculeafa. 



(3) Lampeoglenia hempeichi. $ . 



Lamproglenia hemprichW^ ov^m.. Mikrogr. Beitrage, 1832, Heft 2, 

 p. 134. 



Host : Myletes dentecc. 



Family IV. PHILICHTHYID^. {LemeoapocUens Hesse.) 



Females elongated, more or less segmented, without articulated 

 locomotive organs, but often with soft lobe-like lateral appendages. 

 Antennae and mouth-processes more or less rudimentary. 



Males distinctly articulate, with two pairs of antennae, two 

 pairs of maxillipeds, the first pair of the latter being transformed 

 into powerful hooks, and two pairs of biramose thoracic limbs, 

 sometimes also one pair on the first abdominal segment. Small 

 cutaneous dorsal appendages to the second thoracic segment. 

 Abdomen generally with 8 articulations. 



These parasites are all found free in the mucous canals and 

 sinuses of various fishes. 



G. 1. Philichthts Stp. 



Female. The whole body distinctly multisegmented, and elon- 

 gated ; without dorsal plates or articulate limbs ; carrying on the 

 small rounded head as well as on the sides of the body a number 

 of soft non-articulate appendages of very peculiar shapes and sizes. 



