24 THE VOYAGE OP H.M.S. CHALLENGER. 



100 fathoms ; Gulf of St. Lawrence ; Spitzbergen ; , West of Nova Zembla, lat. 72° 30' N., 

 long. 52° 45' K, 5 to 20 fathoms, Stuxberg and Th^el ; Eoscoff, Joliet; Port Jackson, 

 Haswell.] 



Distinguished from the preceding species, as above observed, by the tubular portions 

 of the zocecia being punctate up to the border of the orifice, and their rather larger size. 

 There can, I now think, be no doubt as to the distinctness of the two species. 



Family IV. Diastoporid^, Busk. 



Diastoporidx (pars), Bk., Crag Polyzoa, p. 113, Smitt. 

 Tuhuliporidx (pars), Hincks, &c. 



Character. — Zoarium crustaceous or foliaceous, discoid or of indefinite outline \ adnate 

 and sessile, or pedunculate and erect ; no interstitial canceUi. 

 The Family here contains : — 



1. Diastopora, Johnston. 

 (1) Diastopora patina. 



1. Diastopora, Johnston. 



" Diastopores simples," M.-Edwards, Eech. sur les Crisies, p. 39. 



Diastopora, Johnst., Bk., Crag Polyzoa, p. 113; Brit. Mus. Cat., pt. iii., p. 28 ; Hincks, Brit. Mar. 



Polyz., p. 457. 

 Diastopora (pars), Lamx., M.-Edwards, BlainviUe, Eeuss, Hagenow, Michelin, d'Orbigny, Smitt. 

 TuhuUpora sp., Johnst., Auctt. 



Berenicea (pars), Lamx., d'Orbigny. < 



Patinella, Gray, Hincks, Zooph. S. Devon, Ann. and Mag. Nat. Hist., ser. 3, vol. ix. p. 468. 



Gfearacier. ^Zoarium adnate, discoid or flabelliform, centric or excentric ; outline 

 lobed or entire. Zooecia towards the centre wholly immersed, usually sub-erect and 

 partially free towards the periphery ; orifice orbicular or elliptical ; horizontal or oblique. 



(\)' Diastopora patina, Lamarck (sp.). 



TuhuUpora patina, Lamk., Johnst., Gosse, Mar. Zool., pt. iii., p. 8, fig. 1 {nee Milne-Edwards); 

 Joliet. 

 'i Patinella verruearia. Gray. 

 Patinella patina, Hincks, Zooph. S. Devon, Ann. and Mag. Nat. Hist., ser. 3, vol. ix. p. 468. 

 Diastopora patina, Smitt., Busk, Brit. Mus. Cat., pt. iii., p. 28, pi. xxix. figs. 1, 2, pi. xxx. 

 fig. 1 ; Hincks, Brit. Mar. Polyz., vol. i. p. 458, pi. Ixvi. figs. 1-6 ; Waters. 

 ? Disepsparsa marginata (pars), d'Orbigny, 

 Diseosparsa patina. Heller, Marion. 



Character. — Zoarium when mature, discoid, circular, cupped, and bordered by a thin 

 expansion. Central zooecia immersed and usually occluded; marginal ones ereet and 



