MEMBUANIPOUA PILOSA. 137 



Membranipora PILOSA, Linnseus. 

 Plate XXIII. figs. 1-4. 



Irregular Spongy Foliaceous Coralline, Ellis, Corall. 73, no. 4, pi. xxxi. 

 and pi. xxix. fig. D. 



Flustra riLosA, Linn. Syst. ed. 12, 1301 : Ellis <§■ Sol. Zooph. 13 : Lamlc. 

 An. s. Vert. ed. 2, ii. 224 : Grant, Edinb. N. Phil. Journ, 

 iii. Ill: Fkm. B. A. 537: Lister, Phil. Trans. 1834, 384, 

 pi. xii. fig. 2. 



EscHARA PILOSA, Pallas, Elench. 50: Moll, Esch. 37, pi. ii. 



Flustra dentata, Ell. Sf Sol. Zooph. 15: 3Iiill. Zool. Dan. iii. 24, pi. xct. 

 figs. 1,2: Lamk. An. s. Vert. ed. 2, ii. 224. 



Flustra lineata, Esper, Pflanz. Flust. pi. vi. 



Membranipora pilosa, Farre, Phil. Trans. 1837, 412, pi. xxvii. figs. 1-5: 

 JoJinst. P. Z. ed. 2, 327, pi. Ivi. fig. 6: Van Ben. Eecherch. 

 53, pl. Tii. figs. 1-10 ; Mem. Acad. Roy. Pelg. xviii. 29, 

 pi. iv. figs. 1-10: Hincks,A.mi. N. H. ser. 2, Tiii. (1851) 

 355 : Busk, P.M. Cat. ii. 56, pl. Ixxi. : Smitt (1, forma 

 pilosa), CEfvers. K. Vet.-Ak. Forh. 1867, 368 and 415, pl. xx. 

 fig. 49 (Tar.). 



Membranipora stellata, Thomps. Ann. N. H. ser. 1, v. 101. 



Annulipora PILOSA, Gray, P.M. Ead. 107. 



Annuhpora dentata. Gray, ibid. 



Eeptelectrina PILOSA, UOrbigny, Pal. Frang. Terr. Cret. v. 334. 



Reptelectrina dentata, id. I. c. 



ZooBcia ovate, more or less prolonged, and narrowed 

 below ^, the walls thickly covered with minute oval 

 disks, and often with a silvery sheen ; area oval or 

 suborbicular, sometimes much elongated, surrounded by 

 a smooth thickened border; marginal spines 4-12; 

 below the area a single corneous spine, often of great 

 length, sometimes aborted. Ocecia none. 



Var. a (dentata). With numerous, slender, acuminate 

 spines which bend inwards over the area; the horny 

 spine wanting; zoarium assuming a stellate mode of 

 growth,, the cells running out in lines two, three, or 

 four abreast. 



Var. /3 {laxa^ Smitt). Zoarium consisting in great part 



* •'Subturbinata,'' Pallas. 



