120 CATALOGUE OF THE ZOOPHYTES OF 



the trumpet-shaped processes are present, they afford excellent 

 characters, hut they are frequently ruhhed off in worn specimens. 

 The capsules of P. echmulata, besides being developed from the 

 creeping fibre, differ from those of P. pinnata in being smaller, 

 more rounded, and more strongly echinated, but the latter cha- 

 racter is very variable in P. ecTiinulata^ which appears to have 

 led to some mistakes. Fig. 81, p. 465, of Johnston's " History 

 of British Zoophytes," and PI. IX., f. 26* of Landsborough's 

 " Popular History," both called P. setacea, appear to have been 

 taken from specimens of P. echimdata, as the pinna3 and ovicap- 

 sules show the characters of this species, and not of P. setacea, 

 which has long flask-shaped capsules, developed in the axillse of 

 the pinnas. PI. XXII., f. 5, of Brit. Zooph. correctly represents 

 the latter species, though the tubules are not well defined. 



6. P. Catherina, Johns. 



Johns. Brit. Zooph., 97, wood-cuts 1, 17. 

 On other zoophytes and Ascidia from deep water; frequent. 

 The tubules in this species are developed on the radical fibres 

 as well as on the stem and pinnas ; those on each side of the cell 

 are mounted on pedicles and beautifully displayed. The number 

 in connexion with each cell is seven: three below, two at the 

 sides, and two behind ; the latter are sometimes absent. 



7. P. MYRIOPHYLLUM, Limi. 



Johns. Brit. Zooph., 99, t. xxiii., f. 4, 5. 

 A fine specimen of this species was procured in Embleton 

 Bay by R. Embleton, Esq. 



8. P. frutescens, Ellis and Solander. 



Johns. Brit. Zooph., 100, t. xxiv., f. 2, 3. 

 From deep water; rare. Whitburn — Miss Dale. Hartle- 

 pool — J. Hogg, Esq. Cullercoats — J. Coppin, Esq., and 

 J. A. " From muddy bottom in forty-five fathoms off 

 the Tees, in April, 1845, and again in March, 1846, both 

 times with ovaries." — Lieut. Thomas. 



