ISODICTYA. 115 



Genus 22. ISODICTYA, Bow., i, 197 ; n, 9. 



1. ISODICTYA CINEEEA (Grant), n, 274; in, 121; PL 

 XL VIII, figs. 15. 



Habitat. Apparently universally distributed round 

 our coasts. In addition to the many localities recorded 

 in Volumes 11 and in, I have found it at Guernsey ; 

 Seaham Harbour, in the County of Durham; on Nulli- 

 pora, Roundstone and Birterbuy Bays, Co. Galway; 

 and Westport Bay, Co. Mayo (N.). 



For " Chudleigh Salterton," vol. ii, p. 275, line 4, 

 read " Budleigh-Salterton," and p. 276, line 27, for 

 " Seahouse " read " Seaham." 



2. ISODICTYA PEBMOLLIS, Bow., n, 278 ; in, 123 ; PI. 

 XL VIII, figs. 9, 10. 



3. ISODICTYA MAMMEATA, Bow., n, 306; in, PI. LI, figs. 

 79. 



4. ISODICTYA RAMUSCULUS, Bow., n, 314 ; in, PI. LIII, 

 figs. 1 3. 



Habitat. Several small pieces, of which the largest 

 is three quarters of an inch long, half an inch wide, 

 and as much thick, and has five oscula surmounting 

 nipple-like swellings, found between tide marks, Innis- 

 gowla, Westport Bay, Co. Mayo. Colour when alive, 

 pale violet. It is aia erect growing species 



