PLATE LVIII. 



Fig. 

 1-22. Epizoantlim incrustatus (Diib. & Kor.), (p. 636). 



1-11. Free variety from Shetland; Mus. Normani — 1, simple form, with two polyps; 2-4, 



5-8, 9-11, three varietal series. 

 12-13. Typical incmsting forms from Shetland; Mus. Normani. 

 14-21. Incrusting forms from Galway Bay. These are rather smaller and darker than the 



more usual forms. This series, starting from a single polyp, illustrates the 



manner in which new polyps arise. 



22. Antero-posterior section of a oarcinsecium, to show the position of the polyps and the 

 absence of a ventral polyp. 



All the above are drawn from spirit specimens, and are natural size. 

 23-25. Epi%oantlms pagicriphilus, Verr. (p. 641). 



23-24. Upper and under surface of two different specimens from off S.-"W. Ireland; half 

 natural size. 



25. Young specimen from W. of Ireland ; natural size ; p.p. posterior polyp. 

 26-28. Epi&oantMs couchii (Johnst.), (p. 644). 



26. Living specimen from Berehaven ; drawn by A. C. H. 

 27-28. Spirit specimens from S.-W. Ireland ; all natural size. 



29. Epizoanthus macintosM, n. sp. (p. 649). 



Spirit specimen from Shetland ; natural size. 



30-33. Epizoanthns wrightii, n. sp. (p. 651). 



30-32. Living specimens from Dublin Bay ; di-awn by Mr. G. Y. Dixon ; not to scale. 

 32 showing larvffi swimming inside the tentacles. 



33. Spirit specimen ; natural size. 



34-36. Parazoanthus anguicoma (Norm.), (p. 656). 



34. Some of the original type specimens, consisting of one isolated example, and a group 



of four polyps on a sponge, from Shetland (the specimen has unfortunately dried 

 up) ; Mus. Normani. 



35. Ordinary forms from S.-W. Ireland, on the tube of a Serpula. 



36. Button-like variety, on the tube of a Hyalonoecia; both natural size, from spirit 



specimens. 



37-38. Parazoanthus dixoni, n. sp. (p. 658). 



37. Group of living specimens from S.-W. Ireland ; tall variety ; di-awn by A. C. H. 



38. Short variety ; spirit specimens all natural size. 



[All the above specimens are in the British Museum, excepting Nos. 1-13 and 34. No. 29 was 

 presented by Prof. W. C. M'Intosh, and No. 33 by Mr. G. Y. Dixon.] 



