Chap. IX. 



TABULAR VIEW. 



341 



C. phrygium DeBl. — Lucernaria phrygia Fabr} — Greenland (Fab- 

 ricius) ; Grand 3Ianan, Bay of Fundij (W. Stimpson). 



C. arcticum Ag. — Myriothela arctica Sars. — Spadix purpurea Gosse, 



Ann. and Mag. Nat. Hist., 1855, p. 125; Mar. ZooL, p. 19, 

 fig. 25. — Norway (Sars); English Coast (Gosse). 

 Dipurena McCr? 



D. strangulata McCr., PL 9, fig. 1. — Charleston Harbor (McCrady). 

 D. cervicata McCr. — Charleston Harbor (McCrady). 



D. conica A. Ag. — JYaushon, Bttssard's Bay (A. Agassiz).^ 

 Slabberia Forbes. 



S. halterata Forbes, Nak. Med., PI. 6, fig. 1. — Cornwall (Forbes). 

 4 til Family. Cyt^id.e Agassi 

 Cytaeis Fsch. (not Sars). 



C. tetrastyla Fsch., PI. 8, fig. 2 ; Fyd. and Sofd., Bonite, Zooph., 



PI. 2, figs. 4-15. — Atlantic Ocean, Equator (Eschscholtz). 

 C. pusilla Gegenb., PI. 8, fig. 8. — ? Bougainvillia mediterranea 

 Biisch. — Messina (Gegenbaur). 

 5th Family. Cladonemid.e Gegenb., Zeit. w. Zool., 1856. 



Cladonema Diij. — Medusa: Stauridia Wright. — Hydra: Stauridia Diij. 

 C. radiatum Dnj., Ann. so. nai, 1845, Pis. 14 and 15, C. — British 

 Channel or Mediterranean (Dujardin). 

 Eleutheria Quatr. — Hydra: Clavatella Hindis, Ann. and Mag., 1861, 

 Vol. VII. PI. 7. 



E. dichotoma Quatr., Ann. sc. nat., 1842, PI. 8. — Isles Chausey 



(Quatrefages). 



' Mr. W. Stimpson has called my attention to 

 the generic identity of Lucernaria phrygia Fabr. 

 and Sars' Myriothela, which is unquestionable. I 

 have compared a specimen collected by Mr. Stimp- 

 son at Grand Manan with the descriptions of the 

 European species, and find that they agree in their 

 generic characters. The name first proposed by 

 DeBlainville for this genus must, therefore, be re- 

 tained. The medusa is not yet known^ 



^ According to Forbes' statement, the. ovaries of 

 Slabberia are upon the radiating tubes : in Dipurena 

 they are upon the proboscis. This seems to indicate 

 either an incorrect observation or different affinities. 



* Dipurena conica A. Ag. Spherosome conical ; 

 thickness of disk tapering rapidly from abactinal 



pole to circular tube ; digestive trunk elongated, 

 with a slight constriction at the base and another 

 near the middle, tapering towards extremity, does 

 not quite extend to the level of the veil ; the four 

 marginal tentacles with large bulbs at the base, 

 and very marked eye-specks, surrounded by reddish 

 pigment-cells ; terminal bulb of tentacles about twice 

 the diameter of the tentacle itself; height of sphero- 

 some and diameter across the circular tube one 

 eighth of an inch. — Naushon, Buzzard's Bay, Sep- 

 tember (A. Agassiz). 



* This family differs, chiefly, from the Sarsiadie, 

 by the presence of tentacles at the end of the 

 proboscis. The species referred to CytEeis bj' Sars. 

 belong to the family of Bougainvillidae. 



