POLYPI. 95 



which admit of motion like the jointed feet of articulata ; their motions 

 persist even when the animal has been for some time dead. Their use is 

 not known. See figures in ELLIS Corall. PI. xx. fig. 2 A. (of Cellularia 

 avicularia LAM. : of Flustra angustiloba LAM.) ; comp. VAN BENEDEN 

 Recherches sur les Bryoz. 1. 1. pp. 14 23, and NORDMANN and KROHN 

 cited by SIEBOLD Lehrb. der vergleich. Anat. i. p. 33 : also DARWIN Voyages 

 of Adventure and Beagle, vol. in. pp. 259 62 quoted, with figures, by 

 JOHNSTON, Hist. Br. Zooph. pp. 329 332. 



Valkeria FLEMING, FARRE. 



Sp. Valkeria cuscuta, Sertularia cuscuta L. ; ELL. CoraU. PI. xiv, C, C. 

 FARRE, Phil. Trans. 1837. PI. xxm. 



Vesicularia THOMPSON, FAREE. 



Sp. Vesicularia spinosa, Sertularia spinosa L. ; ELL. CoraU. PI. XL fig. 1 7 

 b, B, C, D ; FARRE, 1. 1. PI. xxn. 



Serialaria LAM. Polypary homy, ramose, composed of cells 

 cylindrical, parallel, cohering in rows. 



Sp. Serialaria Undigera, Sertul. lendigera L. ; ELL. CoraU. PI. XV. No. 24 b, 

 B; CAVOLINI, Polipi mar. PI. ix. fig. i, 2 ; the cells stand close together, 

 as in a Pan's-pipe. JOHNSTON, 1. 1. p. 369. 



Anguinaria LAM. Cells elongate, subclavate, perforated by a 

 lateral aperture, set on a creeping fistulous stolon, erect, distant. 



Sp. Anguinaria spatulata, Sertul. anguina L. ; ELL. Corall. PI. xxu. fig. 

 2 c, C ; LISTER Phil. Trans. 1834. PI. xn. fig. 4 ; JOHNSTON, Hist. Br. 

 Zooph. p. 290. PL L. fig. 8, 9. 



Bowerbankia FARRE. 



Sp. BoiverbanJcia densa FARRE, 1. 1. Tab. xxi. xxu. 



Laguncula VAN BENEDEN, Lagenella FARRE. 

 Sp. Laguncula repens FARRE, 1. 1. Tab. xxiv. 



Note. According to A. S. HASSALL Bowerbankia densa is a 

 younger state of Valkeria imbricata ; Annals and Magaz. of nat. 

 Hist. vii. 1841, p. 363, 364. But in Valkeria and Vesicularia 

 from the observations of FARRE and VAN BENEDEN there are 

 8 tentacles not spinous; in Bowerbankia and Laguncula 10 12 

 tentacles, besides vibratile cilia, supplied with immoveable setae or 

 spines. Lusia MILNE EDW. (in a note to LAMARCK Hist. nat. des 

 Ani. s. vert. 2e edit. n. p. 72) is it Laguncula ? 



