584 Proceedings of the Royal Irish Academij. 



CavoUnia tris^nnosa (Lesueur). 

 . . iii., [iv.], . . 



iii. Yoiiglial, a specimen washed ashore (Ball, f. Thompson, '56). 



iv. "Porcupine" Exp., 1869, off Yalentia, 110 fms. (Je&eys, '69a) : 

 E. I. A. Exp., 1885, 1888, 120-750 fms., fragments (Chaster, 

 '98) : K. I. A. Exp., 1888, in tow-nets at Lat. 51° I'K, Long. 

 11° 50' W., depth 750 fms., dead (A. E. N.) : "Elying Pox" 

 Exp., 1889, 250-1000 fms., dead shells (Smith, '89). 

 Distribution, — Pelagic. Both sides of Atlantic from Lat. 60°!^. to 



40° S., Mediterranean Sea, Indian and Pacific Oceans (Pelseneer). 



Eamily. — Aplxsiid^. 



Aplysia punctata., Cuvier. 



i., ii., iii., iv., v., vi. 



Generally distributed all round the coast in the laminarian zone, 

 and not uncommon. 

 Distribution, — Norway to Mediterranean. Madeira. Canaries. 

 The generic name A2)lysia should be replaced by Tethys (Pilsbry 

 in Ann. & Mag. JS'at. Hist. (6), xvi., 1895). 



Eamily. — Pnettmodeematid^. 



Dexiobranchcea pauciAens., Boas. 

 .... v., . 



T. Eoundstone (D'Arcy W. Thompson, f. AV. T. Caiman). 



Distribution. — Atlantic Ocean on the route from Brazil to Europ& 

 (Pelseneer). 



Family. — Clionid^. 

 Clione limacina (Phipps). [^Clione papilionacea., Jeffreys, B. C.) 



. . . iv., . . 



iv. Several small specimens were taken in the tow nets, 57 miles off 

 Dursey Head, in the E. I. A. Exp., 1886 (A. E. K) : off 

 Yalentia (Dublin Mus., pres. byE. W. Gamble). 

 Distribution. — Pelagic. Arctic seas to S. England and Yirginia.. 



