1S99.] PARASITIC COPEPODA ON FISHES. 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 maxiilipeds 

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

 fixes itself to its host. 



(1) Cestopoda amplectens. $ . 



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

 p. 407, pi. xxiv. 



Host : gills of Sargus annularis. Adriatic. 



(2) Cestopoda lizvE. $ . 



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

 'fig. 2. 



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



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



Host : gills of Mugil liza. New Orleans. 



(3) Cestopoda cyunifoemis. 5 • 



Naobranchia cygniforme Hesse, Ann. Sci. Nat. 4 ser. xx. p 122 



1863. 



„ „ ■ Heller, EeisederFregatteNovara, 1865, 



p. 244. 

 Host : Pagellus erythrinvs. North Sea. 



Summary of the Genera and Species. 



Family. Page. Genera. Species. 



i. Ergasilidse 441 2 22 



ii. Caligida) 444 25 124 



iii. Dichelestidse 468 15 46 



iv. Philichthyidse 477 5 14 



v. Lernaeidse 480 11 38 



vi. Chondracanthidse . . 488 9 32 



vii. LernaeopodidsB .... 496 10 62 



Total.. 77 338 



EXPLANATION OF PLATE XXVI. 



Fig. 1. Oralien asellinii,s, §, p. 490. Dorsal surface, la. Ventral surface. 

 1 1). Anterior part of head with antenna?. 1 c. Posterior portion, 

 with mouth. 



2. FhilicMh;s xiphice, 5 . P- 478. 2 a. (J of same. 



15 



3. Rickiardia denticis, 5 , p- 479. j' 



4. Sphcsrifer leydigi, J , p. 479. y. 



5. Colobomatus hergyltm, 5 , p. 480. —. 5 a. The same seen from the 



side. 



6. LeposphUus labri, J , p. 480. — • 



