168 CATALOaUE OF ADDITIONS TO, AND ALTERATIONS 



FxusTEA Peachii. — CoucJi, 9tli Eep. Corn. Poly. Soc, 81. 



Membkanipoka Lacroixii. — Hinchs, Erit. Mar. Poly., p. 129, 



plate xvii. 5, 8. Between tide marks, &c. Not at all rare in 



Cornwall, especially on mussels. (C.W.P.) Wick, N.B. (C.W.P.) 



3 — M. Hexagona. — busk. Micro. Journ. for 1856, p. 308, 



plate 12, fig. 4. 



Powey harbour, off the Deadman, July 1869, on an Ascidian. 

 Wick, N.B. (C.W.P.) 



4 — M. LiJN'EATA. — Linnceus. 



Plustea Line ATA, Couch, Corn. Paun p. 124. 



Membranipora Lineata. — Busk, P.M. Cat. ii, 58, plate Ixi, 

 fig. 1. 



Common between tide marks on the Cornish Coast. (C.W.P.) 



Membranipora Craticula. — Alder. 



5 — Plustka Lineata, Couch, Corn. Paun., plate iii, 124, plate 

 xxii, fig. 15. Hinchs, Prit. M. Poly. 147, plate xix, fig. 7. 



Membranipora Craticula. — Alder, North'^- Cat. Trans. Tyneside 

 Pield Club, iii, 144, plate viii, fig. ?>. 



Very fine from off the Deadman, and on stones between tide 

 marks, Gorran Haven, &c. Wick and Peterhead, N.B. (C.W.P.) 



6 — M. Spixifera. — Johnston. Rincks, Erit. M. Poly., p. 149, 

 plate xix, figs. 1 a, I, c. Cat. Zoo. Dev. and Corn., p. 39. 



Although Mr. Alder thought this to be identical with M. 

 Cratacula, from having seen so many excellent specimens of 

 both, I do not consider they are so. 



On tangle roots, and between tide marks, on rocks and 

 stones, off Goran Haven, &c., on the Cornish coast. (C.W.P.) 



7 — Membranipora Plustroides. — Hinchs. 



Plustroides. — Hinchs, Erit. Mar. Pol., plate xix, fig. 2, p. 151. 



On stones and shells from moderate depths, and from deep 

 water. 



Off the Deadman, Cornwall, 60 fathoms. (T.H.) 



8 — M. CuRViRosTRis. — Hinchs. 



M. CuRViROSTRis. — Hinchs, Dev. and Corn. Cat. p. 39, plate vii, 

 fig. 4, and Erit. Mar. Pol., p. 153, plate ix, figs. 5, 6. 



Colonies forming a delicate pearly-white lace work. Ten or 

 twelve miles south of Polperro, in 40 fathoms (T.H.) (C.W.P.) 



