found in a member of the genus Siphonostoma or in Nerophis 

 annulatiis. From the other two hosts several parasites belonging 

 to this order have been described. 



I v^ish to thank Mr. C. Tate Regan of the British Museum 

 (Natural History) for help in the identification of the fishes, 

 and Mr. Dobell for confirmation of my identification of the 

 parasites. 



TaWe showing the numbers of fishes examined and the 

 occurrence of the parasites. 



examined 



iName of fish 



No infected 



No 

 uninfected 



INJ A \i\ T? /^T? ■r>AT>ACTnP"C^ 



iNAMK Ur I'ARAiiililj 



- 



I 



Blennius tentacularis Brünn. 



0 



I 





4 





2 



2 





3 



Conger vulgaris Guv. 



0 



3 





5 



Coris julis Gthr. 



0 



5 





3 



Crenilabrus pavo G. V. 



0 



3 





2 



Gobius paganellus L. 



0 



2 





27 



Heliases chromis Gthr. 



I 



26 



Ceratomyxa arcuata Thél. 



6 



Hippocampus guttulatus Guv. 



5 



I 



Sphaeromyxa sabra^esi L. & M. 





Labrus merula L. 



0 



I 



7 



Motella tricirraia Nilss. 



4 



5 



Sphaeromyxa sabra^esi L. & M. 



2 



Mullus barb a tus L. 



0 



2 



6 



Nerophis annulatus Kp. 



5 



I 



Sphaeromyxa sabra'^esi L. & M . 



8 



Ophidium vasalli Risso 



4 



4 



Ceratomyxa arcuata Thél. 



6 



Sargus rondeletii G. V. 



0 



6 



12 



Scorpaena porcus L. 



0 



12 





4 



Scyllium canicula Guv. 



I 



3 



Chloromyxum leydigi Ming. 



5 



Serranus cabrilla Guv. 



0 



5 





2 



Serranus scriba Guv. 



0 



2 







Siphonostoma rondeletii delà R. 



17 



2 



Sphaeromyxa sabra:(esi L. & M . 



6 



Smaris vulgaris G. V. 



0 



6 





5 



Syngnathus acus L. 



2 



3 



Sphaeromyxa sabra^esi L. & M. 



4 



Trygon pastinaca L. 



0 



4 





i38 





41 



97 





All the parasites were found in the gall-bladders of the fishes ; 

 none were found elsewhere. 



(273) 



