PLATE LVIII. 



Fig. 

 1-22. Epizoanthis 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 incrusting 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 cajcLnsecium, 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. Hjpi%oanthui paguripMlus, Verr. (p. 641). 



23-24. Upper and under surface of two difierent 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%oanthu8 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 macintoski, n. sp. (p. 649). 



Spirit specimen from Shetland ; natural size. 



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



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

 32 showing larvse swimming inside the tentacles. 



33. Spirit specimen ; natural size. 



34-36. Fara%oanthus anguicoma (Norm.), (p. 656). 



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



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. Parazoanthiis dixoni, n. sp. (p. 658). 



37. Group of living specimens from S.-W. Ireland ; tall variety ; drawn 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.] 



