1 66 The Irish Naturalist. 



lYIembranipora catenularia, Jameson — {Hippothoa catenularia, Flem). 

 — Very common on old shells. Recorded by W. Thompson from off 

 the Gobbins, Co. Antrim. 



Scrupocellaria scruposa, Linn. — ^Very common around the Irish 

 coasts. 



Thirty- TWO Fathoms, Donaghadee. 



lYIembraniporella nitida, Johnst. — Fairly common. 



IVIucronella variolosa, Johnst.— (Z^/ra/zVz variolosa, Johnst.)— A com- 

 mon form. 



M . peach i i , Johnst. — {^Lepraliapeachii^ Johnst.) — A very common species. 



Schizothcca fissa, Busk — {Lcpralia fissa. Busk.)— Not many recorded 



localities. Obtained from the coast of Antrim and from Birterbuy 



bay. 



IVIemtoranipor'a flustroides, Hincks.— Recorded from Antrim and 

 Birterbuy bay. 



IVI, pilosa, Pall. — Common around all the coasts. 



Flustra foliacea, Linn. — Very generally distributed. 



Crisia aculeata, Hass. — {Crista ebumea, with spines, Linn.) — (Jrisia 

 ebiirnca, with spines, was made a distinct species {Crisia aculeata), by 

 Hassall; but Hincks, Busk, and Smith, regard it only as a variety of 

 the former. Harmer in his paper on the British species of Crisia in 

 the Quar. Jour. Micros. Sci., March, 1891, regards it as a distinct 

 species from its particular form of ovicell, which, never occurs in any 

 other type of the colony. 



Forty-seven Fathoms. 



Phylactclla coilaris, Norm.— (Zt^m//a collaris, Norm.)— Not pre- 

 viously recorded from Ireland. 



IVIucronella peach ii, Johnst— (Z. peachii, Johnst.)— A very common 

 form ; var. labiosa recorded by W. Thompson from Belfast bay. 



IVIicroporella malusii, And.— (Z. malusii, And.)— Widely distributed ; 

 previously obtained from Roundstone and the Antrim coast. 



Schizoporella linearis, Hass. (Z. linearis, Hass.) — A somewhat com- 

 mon species. 



Smittia reticulata, J. Macgill. (Z. reticulata, Macgill.)— Also recorded 

 from Belfast bay byW. Thompson, and from Birterbuy bay by Norman. 



WIembranipora flemingrii, Busk— A form often met with. 

 Hippothoa flagrellum, Manz. — Found also from Mr. Hyndman's 



Antrim dredgings, and from Birterbuy bay. 

 Diastopora obelia, Flem. — Generally distributed. 

 Crisia aculeata, Hass. — (C. ebumea, with spines, Linn.). 



Sixty-two Fathoms. 



Schizoporella auriculata, Hass. — {Lepralia auriculata, Hass.). 



Mastig'opora hyndmanni, Johnst. (Z. hyndmanni, Johnst.) — Re- 

 corded by Hyndman as abundant from the coa.st of Antrim ; also by 

 Thompson from Belfast bay. 



Schizotheca fissa, Busk.— (Z. y^^j-a, Busk.). 



Schizoporella linearis, Hass.— (Z. /m^^^rzV, Hass). 



Membranipora imbeliis, Hincks — Obtained from the coast of 

 Antrim bv Hvndman. 



