BlilTISU ZOOPHYTES. 127 



7. P. siLiQuosA, Uincks. 

 Hab. : Guernsey. 



Described in A. N. H., February, 1877. 



This species, so far as known, is a stemless form, 

 each zoophyte being in appearance like a branch of 

 one of the pinnated forms. The female calycles are 

 long and pod-like. 



8. P. HALEcioiDES, AlJer. Plate IX. fig. 3. 



Hab. : Cullercoats [Aid.), Shetland, Ilfracombe 

 {Uincks). Height 1 in. 



" This is a singularly delicate and beautiful spe- 

 cies." 



The pinnse are alternate, one to each internode of the 

 stem, into which they are set as into joints. The 

 pinnae are themselves jointed, and bear few calycles, 

 separated by two or three internodes. Each calycle 

 has a nematophore above and below it, and encloses a 

 polypite, shaped like an hour-glass, with a wreath of 

 about 20 tentacles, which can be waved in all direc- 

 tions. The length of the pinnee vary, gradually short>- 

 ening towards the apex. The pinn» never bear more 

 than 3 or 4 calycles, the number regularly decreasing 

 to the uppermost pinna, which bears one. 



9. P. PRUTESCENS, E. mid S. 



Sertularia Gorgonia {Pall.), S. frutescens {E. and 8., 

 Turt., Bosc, Steio., Hogg), Aglaophenia frutescens 

 {Lamh.), Pennaria fruticans (Oken). 



Hab. : In deep water, rare. St. Andrew's {McI.). 

 Height 5—6 in. (11 in., McI.) 



This is the "Shrubby Coralline'' of E. and S. "The 

 stem is black and hard, full of small united tubes, 

 from which come forth rows of small branches disposed 

 alternately in a pinnated order, bending upwards. 



