189^.] PABASITIC COPEPODA ON PISHES. 507 



G. 10. Cestopoda Kurz. 



Female with elongated cylindrical cephalothorax, enlarged 

 squarish genital segments, and minute abdomen. The ovaries are 

 lateral, enclosed in muscular bands which are united together 

 down the centre by a membrane. Second pair of maxillipeds 

 short, double, muscular, serving as an organ by which the animal 

 fixes itself to its host. 



(1) Cestopoda amplectens. 5 . 



Cestopoda amplectens Kurz, Zeitschrift f. wiss. Zool. xxix. 1877, 

 p. 407, pi. xxiv. 



Host : gills of Sargus annularis. Adriatic. 



(2) Cestopoda liz.e. $ . 



Anchorella lizce Kr. Bidrag til Kundskab, 1863, p. 295, pi. xvi. 

 .fig. 2. 



Cestopoda lizce Kurz, op. cit. 1877, p. 415. 



Anchorella lizce Carl Vogt, Arch. Zool. Exp. vi, 1877, p. 432. 



Host : gills oE Mugil liza. New Orleans. 



(3) Cestopoda cygnipoemis. § . 



NaohrancJiia cijgniforme Hesse, Ann. Sci. Nat. 4 ser. xx. p. 122, 

 1863. 

 „ „ Heller, Eeise der Fregatte No vara, 1865, 



p. 244. 

 Host : Pagellus erythriwus. North Sea. 



Summary of the Genera and Species. 



Family. Page. Genera. Species. 



i. ErgasilidsB 441 2 22 



ii. CaligidEe 444 25 124 



iii. Dichelestidse 468 15 46 



iv. Philichthyidse 477 5 14 



V. Lernjeid^ 480 11 38 



vi. Chondracanthidae . . 488 9 32 



vii. Lernaeopodidge .... 496 10 62 



Total.. 77 338 



EXPLANATION OF PLATE XXVI. 



Fig. 1. Oralien asellinus, 5> P- 490. Dorsal surface, la. Ventral surface. 

 1 h. Anterior part of head with antennae. 1 c. Posterior portion, 

 ■with mouth. 



2. Fhilichthi/s xipkia, $ , p. 478. 2 a. cJ of same. 



3. Richiardia denticis, $ , p. 479. y* 



4. S;ph(srifer leydigi, $ , p. 479. y. 



5. Colobomatus hergyltce, 5 , p. 480. y. 5 a. The same seen from the 



side. 



6. Lejposphilus labri, 5 , p. 480. y" 



