CESTODE AND NEMATODE PARASITES. 



91 



PARASITE. 



Spiropterina scillicola . 



Staurobothrium aetobatidis 



Tetrarhynchid cysts 



Tetrarhynchid cysts 



Tetrarhynchid cysts 



Tetrarhynchid cysts 



Tetrarhynchid cysts 



Tetrarhynchid cysts . 



Tetrarhynchus aetobatidis 



Tetrarhynchus balistidis 



Tetrarhynchus carcharidis 



Tetrarhynchus equidentatus 



Tetrarhynchus gangeticus 



Tetrarhynchus herdmani 



Tetrarhynchus leucomelanus 



Tetrarhynchus macroporus 



Tetrarhynchus macrocephalus 



Tetrarhynchus minimus 



Tetrarhynchus periderceus . . . 



Tetrarhynchus pinnce 



Tetrarhynchus platycephalus 



Tetrarhynchus rhynchobatidis also Tetrarhynchus herdmani . 



Tetrarhynchus rubromaculatus 



Tetrarhynchus ruficollis 



Tetrarhynchus unionifadw 



Tetrarhynchus unionifactor 



Thysanobothrium uarnakense 



Tiarabothriumjavanicum 



*Tylocephalum aetobatis 



Tylocephalum dierama 



Tylocephalum kuhli 



^Tylocephalum trygonis 



Tylocephalum trygonis 



Tylocephalum uarnak 



HOST. Page 



Aetobatis narinari III. 88 



Aetobatis narinari II. 49 



Balistes mitis III. 50 



Chirocentrus dorab . . . . . III. 55 



Cybium guttatum III. 56 



Diagramma sp III. 56 



Lutjanus annularis III. 57 



Sphyrcena commersoni .... III. 70 



Aetobatis narinari III. 49 



Balistes mitis, undulatus, stellatus I. 89 



Carcharias melanopterus . . . III. 53 



Trygon walga III. 83 



Carcharias gangeticus .... III. 50 



Trygon walga III. 84 



Trygon sephen III. 74 



Trygon uarnak . . . . . . III. 76 



Trygon walga III. 85 



Tceniura melanospilus .... I. 89 



Carcharias gangeticus .... III. 51 



Balistes mitis, undulatus, stellatus I. 89 



Trygon walga III. 86 



Ehynchobatus djeddensis. . . . III. 68 



Trygon walga III. 86 



Trygon walga III. 87 



Margaritifera vulgaris . . III. 87, I. 88 



Khinoptera javanica . 

 Trygon uarnak . . 

 Khinoptera javanica . 

 Aetobatis narinari . . 

 Myliobatis maculata . 

 Trygon kuhli . 

 Trygon walga . . 

 Trygon walga 

 Trygon uarnak . . 



* v. Tetragonocephalum aetiobatidis Aetobatis narinari 



t v. Tetragonocephalum trygonis Aetobatis narinari 



III. 65 

 III. 77 

 III. 67 

 III. 48 

 III. 59 

 III. 72 

 III. 83 

 III. 48 

 III. 76 



11.52 

 11.51 



NATIVE NAMES OF ELASMOBEANCH FISHES. 



We add a list of such native names of Elasmobranchs in use in the North of 

 Ceylon as we have so far been able to ascertain, together with the scientific 

 designation. Where possible the signification of the native names is given. 



We are well aware that the list is far from complete. It is offered in lieu of 

 anything fuller being in existence, and in the hope that it may prove of assistance 

 to anyone who may pursue investigation in Ceylon touching the Elasmobranchs. 



N 2 



