62 Proceedings of the Royal Irish Academy. 



LEPTOMEDUS^. 



Family — Thaumanthd^. 



Thaumantias hemisphaerica (Gronovius). Medusa hemisphaerica, 

 Miiller. Thaumantias pileata, Porbes. Thaumantias Uneata, 

 Forbes. Thaumantias neylecta, Greene. Thaumantias typica, 

 Greene. Thaumantias inconspicua, Hincks. 



i., ii., .... 



i. Belfast Lough ; Larne, coll. E. Patterson (Thompson '40) : Port- 



rush (Forbes '41). 



ii. Kingstown Harbour (Greene '57 ; Haddon '86). 



Laodice calcarata, Agassiz. 

 . . . iv., . . 



iv. Valencia Harbour (Browne '96 and '96a). 



o 



Laodice cruciata (Forskal). Cosmetira pilosella, Forbes. 

 . . iii., . . . 



iii. Ballycotton Bay, coll. K.I. A. Exp. 1885 and 1886(Haddon '86a 



and '88). 



Melicertidium octocostatum (Sars). Melicertum campanulatumy 

 Ehrenberg. Stomohrachimn octocostatum^ Forbes, 

 i., ii,, . iv., . vi. 



i. Portrush ; Bally castle (Thompson '44). 



ii. Dublin coast (Greene '57). 



iv. Yalencia Harbour (Browne 1900). 

 vi. North-west coast (Forbes '48). 



Family — Cannotid^. 

 Dipleurosoma typicum (Boeck). Ametranyia hemisphtsrica, Allm&n. 



. ii., iii., iv., . . 

 ii. Kingstown (Haddon '86). 



iii. South coast of Ireland (AUman '74). 



iv. Yalencia Harbour (Browne 1900). 



Family — Etjcopid^. 

 Obelia nigra, Browne. 

 . . . iv., . . 

 iv. Yalencia Harbour (Browne 1900). 



